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Highly stable N-containing polymer-based Fe/Nx/c electrocatalyst for alkaline anion exchange membrane fuel cell applications

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Progress in Natural Science:Materials International 2022年第1期32卷 27-33页

作者： Muhammad rauf Jingwen Wang Stephan Handschuh-Wang Zhiyou Zhou Waheed Iqbal Sayed Ali Khan Lin Zhuang Xiangzhong ren Yongliang Li Shigang Sun college of chemistry and Environmental Engineering Shenzhen University school of Electronic Science and Engineering Xiamen University college of chemistry and Molecular sciences Hubei Key Lab of Electrochemical Power SourcesWuhan University State key laboratory of Physical chemistry of Solid Surfaces Collaborative Innovation Center of Chemistry for Energy MaterialsCollege of Chemistry and Chemical Engineering Xiamen University Environmental Science and Engineering research center Harbin Institute of Technology (Shenzhen)

A cost-effective electrocatalyst with high activity and stability was developed. The Fe-Nx and pyridinic-N active sites were embedded in nitrogen-doped mesoporous carbon nanomaterial by carbonization at high *** electrocatalyst exhibited excellent electrochemical performance for the oxygen reduction reaction, with high onset potential and half-wave potential values(E= 1.10 v and E= 0.944 v) than 20 wt % Pt/c catalyst(1.04 and 0.910 v). The mass activity of the Schiff base network(SNW) based SNW-Fe/N/c@800°electrocatalyst(0.64 m A mg-1@ 1 v) reached about half of the commercial Pt/c electrocatalyst(1.35 m A mg@ 1 v). The electrocatalyst followed the 4-electron transfer mechanism due to very low hydrogen peroxide yield(HOctrocatalyst with dual active sites showed high stability during cyclic voltammetry and chronoamperometry measurements. More importantly, the electrocatalyst also demonstrated the power density of 266 m W cmin the alkaline anions exchange membrane fuel cell(AEMFc) test, indicating its prospective application for fuel cells.

关键词： Fe/N x /c electrocatalyst Oxygen reduction reaction Active cites Durability Alkaline anions exchange membrane fuel cell

Identification of Bulbocodin D and c as novel STAT3 inhibitors and their anticancer activities in lung cancer cells

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chinese Journal of Natural Medicines 2023年第11期21卷 842-851页

作者： HE Xinyu FU Jiarui LYU Wenyu HUANG Muyang MO Jianshan cHENG Yaxin XU Yulian ZHENG Lijun ZHANG Xiaolei QI Lu ZHANG Lele ZHENG Ying HUANG Mingqing NI Lin LU Jinjian State key laboratory of Quality research in chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao 999078China college of Plant Protection Fujian Agriculture and Forestry UniversityFuzhou 350002China National-Local Joint Engineering laboratory of Druggability and New Drug Evaluation Guangdong Key Laboratory of Chiral Molecule and Drug DiscoverySchool of Pharmaceutical SciencesSun Yat-Sen UniversityGuangzhou 510006China college of Life sciences China Jiliang UniversityHangzhou 310018China Department of Pharmacy Fujian Medical University Union HospitalFuzhou 350100China Department of Pathology School of Basic Medical SciencesSouthern Medical UniversityGuangzhou 510515China school of Basic Medical sciences Chengdu UniversityChengdu 610106China college of Pharmacy Fujian University of Traditional Chinese MedicineFuzhou 350003China Department of Pharmaceutical sciences Faculty of Health SciencesUniversity of MacaoMacao 999078China Guangdong-Hong Kong-Macao Joint lab on chinese Medicine and Immune Disease research University of MacaoMacao 999078China

cancer stands as one of the predominant causes of mortality globally, necessitating ongoing efforts to develop innovative therapeutics. Historically, natural products have been foundational in the quest for anticancer agents. Bulbocodin D (BD) and Bulbocodin c (Bc), two bibenzyls derived from Pleione bulbocodioides (Franch.) rolfe, have demonstrated notable in vitro anticancer activity. In human lung cancer A549 cells, the Ic50s for BD and Bc were 11.63 and 11.71 μmol·L^(−1), respectively. BD triggered apoptosis, as evidenced by an upsurge in Annexin v-positive cells and elevated protein expression of cleaved-PArP in cancer cells. Furthermore, BD and Bc markedly inhibited the migratory and invasive potentials of A549 cells. The altered genes identified through rNA-sequencing analysis were integrated into the cMap dataset, suggesting BD’s role as a potential signal transducer and activator of transcription 3 (STAT3) inhibitor. SwissDock and MOE analyses further revealed that both BD and Bc exhibited a commendable binding affinity with STAT3. Additionally, a surface plasmon resonance assay confirmed the direct binding affinity between these compounds and STAT3. Notably, treatment with either BD or Bc led to a significant reduction in p-STAT3 (Tyr 705) protein levels, regardless of interleukin-6 stimulation in A549 cells. In addition, the extracellular signal-regulated kinase (ErK) was activated after BD or Bc treatment. An enhancement in cancer cell mortality was observed upon combined treatment of BD and U0126, the MEK1/2 inhibitor. In conclusion, BD and Bc emerge as promising novel STAT3 inhibitors with potential implications in cancer therapy.

关键词： cancer Natural products Bulbocodin D Bulbocodin c STAT3 ErK

reconstruction of cherenkov image bymultiple telescopes of LHAASO-WFcTA

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radiation Detection Technology and Methods 2022年第4期6卷 544-557页

作者： F.Aharonian Q.An Axikegu L.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi J.T.cai Zhe cao Zhen cao J.chang J.F.chang E.S.chen Liang chen Liang chen Long chen M.J.chen M.L.chen Q.H.chen S.H.chen S.Z.chen T.L.chen Y.chen H.L.cheng N.cheng Y.D.cheng S.W.cui X.H.cui Y.D.cui B.D’Ettorre Piazzoli B.Z.Dai H.L.Dai Z.G.Dai Danzengluobu Ddella volpe K.K.Duan J.H.Fan Y.Z.Fan Z.X.Fan J.Fang K.Fang c.F.Feng L.Feng S.H.Feng X.T.Feng Y.L.Feng B.Gao c.D.Gao L.Q.Gao Q.Gao W.Gao W.K.Gao M.M.Ge L.S.Geng G.H.Gong Q.B.Gou M.H.Gu F.L.Guo J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He S.L.He X.B.He Y.He M.Heller Y.K.Hor c.Hou X.Hou H.B.Hu Q.Hu S.Hu S.c.Hu X.J.Hu D.H.Huang W.H.Huang X.T.Huang X.Y.Huang Y.Huang Z.c.Huang X.L.Ji H.Y.Jia K.Jia K.Jiang Z.J.Jiang M.Jin M.M.Kang T.Ke D.Kuleshov K.Levochkin B.B.Li cheng Li cong Li F.Li H.B.Li H.c.Li H.Y.Li J.Li Jian Li Jie Li K.Li WLLi XrLi Xin Li Xin Li YZLi Zhe Li Zhuo Li E.W.Liang Y.F.Liang S.J.Lin B.Liu c.Liu D.Liu H.Liu H.D.Liu J.Liu J.L.Liu J.S.Liu J.Y.Liu M.Y.Liu r.Y.Liu S.M.Liu W.Liu Y.Liu Y.N.Liu W.J.Long r.Lu Q.Luo H.K.Lv B.Q.Ma L.L.Ma X.H.Ma J.r.Mao A.Masood Z.Min W.Mitthumsiri Y.c.Nan Z.W.Ou B.Y.Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi Y.Q.Qi B.Q.Qiao J.J.Qin D.ruffolo A.Sáiz c.Y.Shao L.Shao O.Shchegolev X.D.Sheng J.Y.Shi H.c.Song Yu.v.Stenkin v.Stepanov Y.Su Q.N.Sun X.N.Sun Z.B.Sun P.H.T.Tam Z.B.Tang W.W.Tian B.D.Wang c.Wang H.Wang H.G.Wang J.c.Wang J.S.Wang L.P.Wang L.Y.Wang r.Wang r.N.Wang W.Wang X.G.Wang X.Y.Wang Y.Wang Y.D.Wang Y.J.Wang Y.P.Wang Z.H.Wang Z.X.Wang Zhen Wang Zheng Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen c.Y.Wu H.r.Wu S.Wu X.F.Wu Y.S.Wu S.Q.Xi J.Xia J.J.Xia G.M.Xiang D.X.Xiao G.Xiao G.G.Xin Y.L.Xin Y.Xing Z.Xiong D.L.Xu r.X.Xu L.Xue D.H.Yan J.Z.Yan c.W.Yang F.F.Yang H.W.Yang J.Y.Yang L.L.Yang M.J.Yang r.Z.Yang S.B.Yang Y.H.Yao Z.G.Yao Y.M.Ye L.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.Yue H.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.Zhang F.Zhang H.M.Zhang H.Y.Zhang J.L.Zhang L.X.Zhang Li Zhang Lu Zhang P.F.Zhang P.P.Zhang r.Zhang S.B.Zhang S.r.Zhang S. key laboratory of Particle Astrophyics&Experimental Physics Division&computing center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese Academy of sciences Beijing 100049China TIANFU cosmic ray research center ChengduSichuanChina Dublin Institute for Advanced Studies 31 Fitzwilliam Place2DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State key laboratory of Particle Detection and Electronics BeijingChina University of Science and Technology of china Hefei 230026AnhuiChina school of Physical Science and Technology&school of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031SichuanChina college of Physics Sichuan UniversityChengdu 610065SichuanChina school of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina key laboratory of Dark Matter and Space Astronomy&key laboratory of radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina key laboratory for research in Galaxies and cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China key laboratory of cosmic rays(Tibet University) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Hebei Normal University Shijiazhuang 050024HebeiChina school of Physics and Astronomy(Zhuhai)&Sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000China school of Physics(Guangzhou) Sun Yat-sen UniversityGuangzhou 510275GuangdongChina Dipartimento di Fisica dell’Universitàdi Napoli“Federico II” Complesso Universitario di Monte Sant’Angelovia Cinthia80126 NapoliItaly school of Physics and Astronomy Yunnan UniversityKunming 650091YunnanChina Département de Physique Nucléaire et corpusculaire Facultéde SciencesUniversitéde Genève

Introduction One of main scientiﬁc goals of the Large High Altitude Air Shower Observatory(LHAASO)is to accurately measure the energy spectra of different cosmic ray compositions around the‘knee’*** Wide Field-of-view(Fov)cherenkov Telescope Array(WFcTA),which is one of the main detectors of LHAASO and has 18 telescopes,is built to achieve this *** telescopes are put together and point to connected directions for a larger *** Telescopes are deployed spatially as close as possible,but due to their own size,the distance between two adjacent telescopes is about 10 ***,the cherenkov lateral distribution and the parallax between the two telescopes should be considered in the event building process for images crossing over the boundaries of Fovs of the *** event building method for cherenkov images measured by multiple telescopes of WFcTA is *** performance of the shower measurements using the combined images is evaluated by comparing with showers that are fully contained by a virtual telescope in *** and conclusion It is proved that the developed event building process can help to increase the Fov of WFcTA by 30%while maintaining the same reconstruction quality,compared to the separate telescope reconstruction method.

关键词： method directions conclusion

Line-of-shower trigger method to lower energy threshold for GrB detection using LHAASO-WcDA

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radiation Detection Technology and Methods 2021年第4期5卷 531-541页

作者： F.Aharonian Q.An Axikegu L.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi H.cai J.T.cai Z.cao Z.cao J.chang J.F.chang X.c.chan B.M.chen J.chen L.chen L.chen L.chen M.J.chen M.L.chen Q.H.chen S.H.chen S.Z.chen T.L.chen X.L.chen Y.chen N.chen Y.D.chen S.W.cui X.H.cui Y.D.cui B.Z.Dai H.L.Dai Z.G.Dai Danzengluobu D.della volpe B.D’Ettorre Piazzoli X.J.Don J.H.Fan Y.Z.Fan Z.X.Fan J.Fang K.Fan c.F.Feng L.Feng S.H.Fen Y.L.Feng B.Gao c.D.Gao Q.Gao W.Gao M.M.Ge L.S.Gen G.H.Gong Q.B.Gou M.H.Gu J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.c.He S.L.He X.B.He Y.He M.Heller Y.K.Hor c.Hou X.Hou H.B.Hu S.Hu S.c.Hu X.J.Hu D.H.Huang Q.L.Huan W.H.Huang X.T.Huang Z.c.Huang F.Ji X.L.Ji H.Y.Jia K.Jiang Z.J.Jiang c.Jin D.Kuleshov K.Levochkin B.B.Li c.Li c.Li F.Li H.B.Li H.c.Li H.Y.Li J.Li K.Li W.L.Li X.Li X.Li X.r.Li Y.Li Y.Z.Li Z.Li Z.Li E.W.Liang Y.F.Liang S.J.Lin B.Liu c.Liu D.Liu H.Liu H.D.Liu J.Liu J.L.Liu J.S.Liu J.Y.Liu M.Y.Liu r.Y.Liu S.M.Liu W.Liu Y.N.Liu Z.X.Liu W.J.Long r.Lu H.K.Lv B.Q.Ma L.L.Ma X.H.Ma J.r.Mao A.Masood W.Mitthumsiri T.Montaruli Y.c.Nan B.Y.Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi D.ruffolo v.rulev A.Sáiz L.Shao O.Shchegolev X.D.Shen J.r.Shi H.c.Song Yu.v.Stenkin v.Stepanov Q.N.Sun X.N.Sun Z.B.Sun P.H.T.Tam Z.B.Tang W.W.Tian B.D.Wan c.Wang H.Wang H.G.Wang J.c.Wang J.S.Wang L.P.Wang L.Y.Wan r.N.Wang W.Wang W.Wang X.G.Wang X.J.Wan X.Y.Wang Y.D.Wan Y.J.Wan Y.P.Wang Z.Wang Z.Wang Z.H.Wang Z.X.Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen c.Y.Wu H.r.Wu S.Wu W.X.Wu X.F.Wu S.Q.Xi J.Xia J.J.Xia G.M.Xiang G.Xiao H.B.Xiao G.G.Xin Y.L.Xin Y.Xing D.L.Xu r.X.Xu L.Xue D.H.Yan c.W.Yang F.F.Yang J.Y.Yang L.L.Yang M.J.Yan r.Z.Yang S.B.Yang Y.H.Yao Z.G.Yao Y.M.Ye L.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.Zhang H.M.Zhang H.Y.Zhang J.L.Zhang J.W.Zhang L.Zhang L.Zhang L.X.Zhang P.F.Zhang P.P.Zhang r.Zhang S.r.Zhang S.S.Zhan X.Zhang X.P.Zhan Y.Zhan Y.Zhang Y.F.Zhang Y.L.Zhan B.Zhao J.Zhao L.Zhao L.Z.Zhao S.P.Zhao F.Zheng Y.Zheng B.Zhou H.Zhou J.N.Zhou P.Zhou r.Zhou X.X.Zhou c.G. key laboratory of Particle Astrophysics&Experimental Physics Division&computing center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese Academy of sciences Beijing 100049China TIANFU cosmic ray research center ChengduSichuanChina State key laboratory of Particle Detection and Electronics BeijingChina University of Science and Technology of china Hefei 230026AnhuiChina Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science center Chinese Academy of SciencesBeijing 100190China school of Physics Peking UniversityBeijing 100871China center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina school of Physical Science and Technology Guangxi UniversityNanning 530004GuangxiChina Hebei Normal University Shijiazhuang 050024HebeiChina school of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001HenanChina school of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina key laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237ShandongChina key laboratory for research in Galaxies and cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao Lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China school of Physical Science and Technology&school of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031SichuanChina college of Physics Sichuan UniversityChengdu 610065SichuanChina key laboratory of cosmic rays(Tibet University) Ministry of EducationLhasa 850000TibetChina school of Physic

Purpose Observation of high energy and very high emission from Gamma ray Bursts(GrBs)is crucial to study the gigantic explosion and the underline *** a large field-of-view and almost full duty cycle,the Water cherenkov Detector Array(WcDA),a sub-array of the Large High Altitude Air Shower Observatory(LHAASO),is appropriate to monitor the very high energy emission from unpredictable transients such as *** Nevertheless,the main issue for an extensive air shower array is the high energy threshold which limits the horizon of the *** address this issue a new trigger method is developed in this article to lower the energy threshold of WcDA for GrB *** The proposed method significantly improves the detection efficiency of WcDA for gamma-rays around the GrB direction at 10-300 *** sensitivity of the WcDA for GrB detection with the new trigger method is *** achieved sensitivity of the quarter WcDA array above 10 Gev is comparable with that of *** data analysis process and corresponding fluence upper limit for GrB 190719c is presented as an example.

关键词： LHAASO WcDA GrB

A dynamic range extension system for LHAASOWcDA-1

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radiation Detection Technology and Methods 2021年第4期5卷 520-530页

作者： F.Aharonian Q.An Axikegu L.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi H.cai J.T.cai Z.cao Z.cao J.chang J.F.chang X.c.chang B.M.chen J.chen L.chen L.chen L.chen M.J.chen M.L.chen Q.H.chen S.H.chen S.Z.chen T.L.chen X.L.chen Y.chen N.cheng Y.D.cheng S.W.cui X.H.cui Y.D.cui B.Z.Dai H.L.Dai Z.G.Dai Danzengluobu D.della volpe B.D’Ettorre Piazzoli X.J.Dong J.H.Fan Y.Z.Fan Z.X.Fan J.Fang K.Fang c.F.Feng L.Feng S.H.Feng Y.L.Feng B.Gao c.D.Gao Q.Gao W.Gao M.M.Ge L.S.Geng G.H.Gong Q.B.Gou M.H.Gu J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.c.He S.L.He X.B.He Y.He M.Heller Y.K.Hor c.Hou X.Hou H.B.Hu S.Hu S.c.Hu X.J.Hu D.H.Huang Q.L.Huang W.H.Huang X.T.Huang Y.Huang Z.c.Huang F.Ji X.L.Ji H.Y.Jia K.Jiang Z.J.Jiang c.Jin D.Kuleshov K.Levochkin B.B.Li c.Li c.Li F.Li H.B.Li H.c.Li H.Y.Li J.Li K.Li W.L.Li X.Li X.Li X.r.Li Y.Li Y.Z.Li Z.Li Z.Li E.W.Liang Y.F.Liang S.J.Lin B.Liu c.Liu D.Liu H.Liu H.D.Liu J.Liu J.L.Liu J.S.Liu J.Y.Liu M.Y.Liu r.Y.Liu S.M.Liu W.Liu Y.N.Liu Z.X.Liu W.J.Long r.Lu H.K.Lv B.Q.Ma L.L.Ma X.H.Ma J.r.Mao A.Masood W.Mitthumsiri T.Montaruli Y.c.Nan B.Y.Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi D.ruffolo v.rulev A.Sáiz L.Shao O.Shchegolev X.D.Sheng J.r.Shi H.c.Song Yu.v.Stenkin v.Stepanov Q.N.Sun X.N.Sun Z.B.Sun P.H.T.Tam Z.B.Tang W.W.Tian B.D.Wang c.Wang H.Wang H.G.Wang J.c.Wang J.S.Wang L.P.Wang L.Y.Wang r.N.Wang W.Wang W.Wang X.G.Wang X.J.Wang X.Y.Wang Y.D.Wang Y.J.Wang Y.P.Wang Z.Wang Z.Wang Z.H.Wang Z.X.Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen c.Y.Wu H.r.Wu S.Wu W.X.Wu X.F.Wu S.Q.Xi J.Xia J.J.Xia G.M.Xiang G.Xiao H.B.Xiao G.G.Xin Y.L.Xin Y.Xing D.L.Xu r.X.Xu L.Xue D.H.Yan c.W.Yang F.F.Yang J.Y.Yang L.L.Yang M.J.Yang r.Z.Yang S.B.Yang Y.H.Yao Z.G.Yao Y.M.Ye L.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.Zhang H.M.Zhang H.Y.Zhang J.L.Zhang J.W.Zhang L.Zhang L.Zhang L.X.Zhang P.F.Zhang P.P.Zhang r.Zhang S.r.Zhang S.S.Zhang X.Zhang X.P.Zhang Y.Zhang Y.Zhang Y.F.Zhang Y.L.Zhang B.Zhao J.Zhao L.Zhao L.Z.Zhao S.P.Zhao F.Zheng Y.Zheng B.Zhou H.Zhou J.N.Zhou key laboratory of Particle Astrophyics&Experimental Physics Division&computing center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese Academy of sciences Beijing 100049China TIANFU cosmic ray research center ChengduSichuanChina State key laboratory of Particle Detection and Electronics BeijingChina University of Science and Technology of china Hefei 230026AnhuiChina Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science center Chinese Academy of SciencesBeijing 100190China school of Physics Peking UniversityBeijing 100871China center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina school of Physics and Astronomy&school of Physics(Guangzhou) Sun Yat-sen UniversityZhuhai 519000GuangdongChina school of Physical Science and Technology Guangxi UniversityNanning 530004GuangxiChina Hebei Normal University Shijiazhuang 050024HebeiChina school of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001HenanChina school of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina key laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237ShandongChina key laboratory for research in Galaxies and cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao Lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China school of Physical Science and Technology&school of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031SichuanChina college of Physics Sichuan UniversityChengdu 610065SichuanChina key laboratory of cosmic rays(Tibet University) Ministry of EducationLhasa 850000TibetChina school of Physics

Purpose The main scientific goal of LHAASO-WcDA is to survey gamma-ray sources with energy from 100 Gev to 30 *** observe high-energy shower events,especially to measure the energy spectrum of cosmic rays from 100 Tev to 10 Pev,a dynamic range extension system(WcDA++)is designed to use a 1.5-inch PMT with a dynamic range of four orders of magnitude for each cell in *** The dynamic range is extended by using these PMTs to measure the effective charge density in the core region of air shower events,which is an important parameter for identifying the composition of primary *** and conclusion The system has been running for more than one *** this paper,the details of the design and performance of WcDA++are presented.

关键词： LHAASO-WcDA WcDA++ Water cherenkov detector Performance

concentrated ternary ether electrolyte allows for stable cycling of a lithium metal battery with commercial mass loading high-nickel NMc and thin anodes

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carbon Energy 2023年第3期5卷 2-18页

作者： Jun Yang Xing Li Ke Qu Yixian Wang Kangqi Shen changhuan Jiang Bo Yu Pan Luo Zhuangzhi Li Mingyang chen Bingshu Guo Mingshan Wang Junchen chen Zhiyuan Ma Yun Huang Zhenzhong Yang Pengcheng Liu rong Huang Xiaodi ren David Mitlin school of New Energy and Materials Southwest Petroleum UniversityChengduChina Energy Storage research Institute Southwest Petroleum UniversityChengduChina Shenzhen key laboratory of Nanobiomechanics Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhenChina china key laboratory of Polar Materials and Devices(MOE) Department of ElectronicsEast China Normal UniversityShanghaiChina Materials Science Program and Texas Materials Institute The University of Texas at AustinAustinTexasUSA Beijing computational Science research center BeijingChina school of Materials Science and Engineering center for Green Innovation University of Science and Technology BeijingBeijingChina Department of Materials Science and Engineering Hefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefeiAnhuiChina

A new concentrated ternary salt ether-based electrolyte enables stable cycling of lithium metal battery(LMB)cells with high-mass-loading(13.8 mg cm^(−2),2.5 mAh cm^(−2))NMc622(LiNi_(0.6)co_(0.2)Mn_(0.2)O_(2))cathodes and 50μm Li ***“cETHEr-3,”this electrolyte is based on LiTFSI,LiDFOB,and LiBF4 with 5 vol%fluorinated ethylene carbonate in 1,***-cial carbonate and state-of-the-art binary salt ether electrolytes were also tested as *** cETHEr-3,the electrochemical performance of the full-cell battery is among the most favorably reported in terms of high-voltage cycling *** example,LiNi_(x)Mn_(y)co_(1-x-y)O_(2)(NMc)-Li metal cells retain 80%capacity at 430 cycles with a 4.4 v cut-off and 83%capacity at 100 cycles with a 4.5 v cut-off(charge at c/5,discharge at c/2).According to simulation by density functional theory and molecular dynamics,this favorable performance is an outcome of enhanced coordination between Li^(+)and the solvent/salt *** advanced microscopy(high-resolution transmission electron microscopy,scanning electron microscopy)and surface science(X-ray photoelectron spectroscopy,time-of-fight secondary ion mass spectroscopy,Fourier-transform infrared spectroscopy,raman spectroscopy),it is demonstrated that a thinner and more stable cathode electrolyte interphase(cEI)and solid electrolyte interphase(SEI)are *** cEI is rich in lithium sulfide(Li_(2)SO_(3)),while the SEI is rich in Li_(3)N and *** cycling,the cEI/SEI suppresses both the deleterious transformation of the cathode r-3m layered near-surface structure into disordered rock salt and the growth of lithium metal dendrites.

关键词： concentrated electrolyte density functional theory ether electrolyte high‐nickel cathode high‐voltage battery molecular dynamics

results of dark matter search using the full PandaX-Ⅱ exposure

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chinese Physics c 2020年第12期44卷 184-200页

作者： Qiuhong Wang Abdusalam Abdukerim Wei chen Xun chen Yunhua chen chen cheng Xiangyi cui Yingjie Fan Deqing Fang changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han changda He Di Huang Yan Huang Yanlin Huang Zhou Huang Xiangdong Ji Yonglin Ju Shuaijie Li Huaxuan Liu Jianglai Liu Wenbo Ma Yugang Ma Yajun Mao Yue Meng Kaixiang Ni Jinhua Ning Xuyang Ning Xiangxiang ren changsong Shang Lin Si Guofang Shen Andi Tan Anqing Wang Hongwei Wang Meng Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Mengmeng Wu Shiyong Wu Weihao Wu Jingkai Xia Mengjiao Xiao Pengwei Xie Binbin Yan Jijun Yang Yong Yang chunxu Yu Jumin Yuan Ying Yuan Xinning Zeng Dan Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou INPAc and school of Physics and Astronomy Shanghai Jiao Tong UniversityMOE Key Lab for Particle PhysicsAstrophysics and CosmologyShanghai Key Laboratory for Particle Physics and CosmologyShanghai 200240China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of chinese Academy of sciences Beijing 100049China Shanghai Jiao Tong University sichuan research Institute Chengdu 610213China Yalong river Hydropower Development company Ltd.288 Shuanglin RoadChengdu 610051China school of Physics Sun Yat-Sen UniversityGuangzhou 510275China Tsung-Dao Lee Institute Shanghai 200240China school of Physics Nankai UniversityTianjin 300071China key laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China school of Physics Peking UniversityBeijing 100871China school of Physics Beihang UniversityBeijing 100191China International research center for Nuclei and Particles in the cosmos&Beijing key laboratory of Advanced Nuclear Materials and Physics Beihang UniversityBeijing 100191China school of Medical Instrument and Food Engineering University of Shanghai for Science and TechnologyShanghai 200093China Department of Physics University of MarylandCollege ParkMaryland 20742USA school of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China school of Physics and key laboratory of Particle Physics and Particle Irradiation(MOE) Shandong UniversityJinan 250100China Shanghai Advanced research Institute Chinese Academy of SciencesShanghai 201210China center for High Energy Physics Peking UniversityBeijing 100871China

We report the dark matter search results obtained using the full 132 ton·day exposure of the PandaX-II experiment,including all data from March 2016 to August *** significant excess of events is identified above the expected *** limits are set on the spin-independent dark matter-nucleon *** lowest 90%confidence level exclusion on the spin-independent cross section is 2.2×10−46 cm2 at a WIMP mass of 30 Gev/c2.

关键词： dark matter direct detection liquid xenon

regulating ethane and ethylene synthesis by proton corridor microenvironment for cO_(2) electrolysis

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Journal of Energy chemistry 2023年第12期87卷 368-377,I0010页

作者： Xiaowen Zhang Bohua ren Hao Li Shuxuan Liu Haoyang Xiong Silong Dong Yifan Li Dan Luo Yi cui Guobin Wen Xin Wang South china Academy of Advanced Optoelectronics International Academy of Optoelectronics at ZhaoqingSouth China Normal UniversityGuangzhou 510006GuangdongChina Department of chemical Engineering Waterloo Institute for NanotechnologyUniversity of Waterloo200 University Avenue WestWaterlooOntario N2L 3G1Canada school of Nano Technology and Nano Bionics University of Science and Technology of ChinaHefei 230026AnhuiChina i-lab Nano-X Vacuum Interconnected WorkstationSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123JiangsuChina State key laboratory of chem/Bio-Sensing and chemometrics Provincial Hunan Key Laboratory for Graphene Materials and DevicesCollege of Chemistry and Chemical EngineeringNational Supercomputer Centers in ChangshaHunan UniversityChangsha 410082HunanChina

Electrocatalytic reduction of carbon dioxide is one of the most effective strategies to achieve carbon neutrality and energy *** high-value multi-carbon products have been widely studied,limited electrocatalysts have been reported for the selective conversion of *** importantly,the factors tuning the selectivity between ethane and ethylene have not been ***,Zn@cu nanowire arrays(Zn@cu-NWAs) catalyst is proposed to stimulate the maintenance of efficient cO_(2)-to-c_(2)H_(6) conversion at high current ***,in order to investigate the factors affecting the interconversion between ethane and ethylene,the counterpart catalyst that facilitates c–c coupling to ethylene was also ***-of-flight secondary-ion mass spectroscopy(TOF-SIMS),in-situ raman spectroscopy,and simulation results show that Zn@cu-NWAs can provide a localized proton corridor environment for the formation of ethane,accelerating the further proton-coupled cO_(2) reduction reaction(cO_(2)rr)***,this catalyst delivered an ethane Faraday efficiency of over 65% at-1.14 v *** with a total current density of 142.3 mA/cm^(2).This work provides a new perspective on regulating the local microenvironment to modify the selectivity of multi-carbon products.

关键词： Proton microenvironment cO_(2)reduction c2+product Selective conversion cu-Zn materials

Identification of the hydrogen utilization pathway for the electrocatalytic hydrogenation of phenol

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Science china chemistry 2021年第9期64卷 1586-1595页

作者： Ling Zhou Xiaorong Zhu Hui Su Hongzhen Lin Yanhong Lyu Xu Zhao chen chen Nana Zhang chao Xie Yingying Li Yuxuan Lu Jianyun Zheng Benrt Johannessen San Ping Jiang Qinghua Liu Yafei Li Yuqin Zou Shuangyin Wang State key laboratory of chem/Bio-Sensing and chemometrics Provincial Hunan Key Laboratory for Graphene Materials and DevicesCollege of Chemistry and Chemical Engineeringthe National Supercomputer Centers in ChangshaHunan UniversityChangsha410082China college of chemistry and Materials Science Nanjing Normal UniversityNanjing210023China National Synchrotron radiation laboratory University of Science and Technology of ChinaHefei230026China i-lab Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou215123China Department of Educational Science Hunan First Normal UniversityChangsha410205China Australian Synchrotron ClaytonVictoria3168Australia Western Australian school of Mines:Minerals Energy and Chemical Engineering and Fuels and Energy Technology InstituteCurtin UniversityPerthWA6102Australia

Electrochemical hydrogenation(EcH)of biomass-derived platform molecules is a burgeoning route for the sustainable utilization of ***,the noble-metal-catalyzed EcH of phenolic compounds suffers from intense competition with hydrogen evolution *** prepared Pt rh bimetallic nanoparticles dispersed on highly ordered mesoporous carbon nanospheres,which improves the utilization efficiency of adsorbed hydrogen(H_(ad))to EcH in H-UPD region(>0 v ***).Further analysis reveals(i)the strong overlapping between the d-orbitals of Pt and rh enhances specific adsorption of phenol;(ii)incorporation of rh devotes an electronic effect on weakening the alloy-H_(ad)interaction to increase the FE of *** calculations confirm the selectivity difference and the EcH parallel pathways:cyclohexanol and cyclohexanone are formed via hydrogenation/dehydrogenation of the intermediate ^(*)c_(6)H_(10) *** findings deepen our fundamental understanding of the EcH process,and cast new light on exploration of highly efficient electrocatalysts for biomass upgrading.

关键词： electrohydrogenation aromatic hydrogenation biomass conversion Pt rh alloy