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Approaching the theoretical capacity of TiO_(2) anode in a photorechargeable lithium-ion battery

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Nano Research 2024年第4期17卷 2655-2662页

作者： Wen Yan Jie Wang Qing Hu Jingjing fu Mohamed K.Albolkany Tian Zhang Xiao Lu Fei Ye bo Liu School of Chemistry and Materials Science University of Science and Technology of ChinaHefei 230026China

New generation of lithium-ion batteries(LIBs)integrating solar energy conversion and storage is emerging,as they could solve the fluctuation problem in the utilization of solar ***-rechargeable lithium-ion batteries(PR-LIBs)are ideal devices for such target,in which solar energy is converted into electricity and stored in *** order to achieve the high performance of PR-LIB,it is crucial to develop dual-function electrode materials that can synergistically capture solar energy and store ***,we present photo-rechargeable lithium-ion batteries using defective black TiO_(2) as photoanode prepared by lithium *** photoanode exhibits excellent photo response in full solar spectrum with a capacity enhancement of 46.4%under illumination,corresponding to the energy conversion efficiency of 4.4%at the current density of 1 A·g^(-1).When illumination is applied at 20 mA·g^(-1),the battery capacity increases from~230 in dark to~349 mAh·g^(-1) at the first cycle,and then stabilizes at 310 mAh·g^(-1),approaching the theoretical value of 335 mAh·g^(-1) of TiO_(2) electrode *** finding provides thoughts for breaking the capacity limitations in TiO_(2) and paves the way for powering LIBs by solar illumination.

关键词： photo-rechargeable lithium-ion batteries photoanode defective TiO_(2)(D-TiO_(2))

Nrf2-mediated ferroptosis of spermatogenic cells involved in male reproductive toxicity induced by polystyrene nanoplastics in mice

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2024年第4期25卷 307-323页

作者： Xufeng fu Hang HAN Hong YANG bo XU Wenjie DAI Ling LIU Tiantian HE Xing DU Xiuying PEI Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education School of Basic Medical SciencesNingxia Medical UniversityYinchuan 750004China Key Laboratory of Reproduction and Genetics in Ningxia Ningxia Medical UniversityYinchuan 750004China

Microplastics(MPs)and nanoplastics(NPs)have become hazardous materials due to the massive amount of plastic waste and disposable masks,but their specific health effects remain *** this study,fluorescence-labeled polystyrene NPs(PS-NPs)were injected into the circulatory systems of mice to determine the distribution and potential toxic effects of NPs in ***,whole-body imaging found that PS-NPs accumulated in the testes of ***,the toxic effects of PS-NPs on the reproduction systems and the spermatocytes cell line of male mice,and their mechanisms,were *** oral exposure to PS-NPs,their spermatogenesis was affected and the spermatogenic cells were *** spermatocyte cell line GC-2 was exposed to PS-NPs and analyzed using RNA sequencing(RNA-seq)to determine the toxic mechanisms;a ferroptosis pathway was found after PS-NP *** phenomena and indicators of ferroptosis were then determined and verified by ferroptosis inhibitor ferrostatin-1(Fer-1),and it was also found that nuclear factor erythroid 2-related factor 2(Nrf2)played an important role in spermatogenic cell ferroptosis induced by ***,it was confirmed in vivo that this mechanism of Nrf2 played a protective role in PS-NPs-induced male reproductive *** study demonstrated that PS-NPs induce male reproductive dysfunction in mice by causing spermatogenic cell ferroptosis dependent on Nrf2.

关键词： Polvstyrene nanoplastics(PS-NPs) Reproductive toxicity Ferroptosis Nuclear factor ervthroid 2-related factor 2(Nrf2)

Cl^(-)ions accelerating interface charge transfer in a Si/In_(2)S_(3) Faradaic junction photocathode for solar seawater splitting

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Science China Chemistry 2024年第9期67卷 2923-2929页

作者： Jun Luo Ruotong Bao Hongzheng Dong Ye fu Dongjian Jiang bo Wang Yuzhan Zheng Qiong Wang Wenjun Luo Zhigang Zou Eco-materials and Renewable Energy Research Center(ERERC) Jiangsu Key Laboratory for Nano TechnologyNational Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China National Laboratory of Solid State Microstructures and Department of Physics Nanjing UniversityNanjing 210093China

Photoelectrocatalytic seawater splitting is a promising low-cost method to produce green hydrogen in a large *** effects of Cl^(-)ions in seawater on the performance of a photoanode have been reported in previous ***,few researches have been done on the roles of Cl^(-)ions in a ***,for the first time,we find that Cl^(-)ions in the electrolyte improve the photocurrent of a Si/In_(2)S_(3) photocathode by 50% at-0.6 V_(RHE).An in-situ X-ray photoelectron spectroscopy(XPS)characterization combined with the time-of-flight secondary-ion mass spectrometry by simulating photoelectrochemical conditions was used to investigate the interface charge transfer *** results suggest that there is an In_(2)^(+3)S_(3-x)(OH)_(2x)layer on the surface of In_(2)S_(3) in the phosphate buffer solution(PBS)electrolyte,which plays a role as an interface charge transfer mediator in the Si/In_(2)S_(3) *** In_(2)^(+3)S_(3-x)(OH)_(2x)surface layer becomes In_(2)^(+3)S_(3-x)(Cl)_(2x)in the PBS electrolyte with NaCl and accelerates the charge transfer rate at the In_(2)S_(3)/electrolyte *** results offer a new concept of regulating interface charge transfer mediator to enhance the performance of photoelectrocatalytic seawater splitting for hydrogen production.

关键词： solar hydrogen production interface charge transfer mechanism coupled electron and ion transfer in-situ XPS characterization In_(2)^(+3)S_(3-x)(OH)_(2x)surface layer

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Two-dimensional Cr_(2)Cl_(3)S_(3)Janus magnetic semiconductor with large magnetic exchange interaction and high-T_(C)

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Chinese Physics B 2024年第9期33卷 481-485页

作者： Lei fu Shasha Li Xiangyan bo Sai Ma Feng Li Yong Pu School of Science&New Energy Technology Engineering Laboratory of Jiangsu Provence Nanjing University of Posts and Telecommunications(NJUPT)Nanjing 210023China

The two-dimensional(2D)Janus monolayers are promising in spintronic device application due to their enhanced magnetic couplings and Curie *** der Waals CrCl_(3) monolayer has been experimentally proved to have an in-plane magnetic easy axis and a low Curie temperature of 17 K,which will limit its application in spintronic *** this work,we propose a new Janus monolayer Cr_(2)Cl_(3)S_(3) based on the first principles *** phonon dispersion and elastic constants confirm that Janus monolayer Cr_(2)Cl_(3)S_(3) is dynamically and mechanically *** Monte Carlo simulation results based on magnetic exchange constants reveal that Janus monolayer Cr_(2)Cl_(3)S_(3) is an intrinsic ferromagnetic semiconductor with TC of 180 K,which is much higher than that of CrCl_(3) due to the enhanced ferromagnetic coupling caused by S ***,the magnetic easy axis of Janus Cr_(2)Cl_(3)S_(3) can be tuned to the perpendicular direction with a large magnetic anisotropy energy(MAE)of 142eV/***,the effect of biaxial strain on the magnetic property of Janus monolayer Cr_(2)Cl_(3)S_(3) is *** is found that the Curie temperature is more robust under tensile *** work indicates that the Janus monolayer Cr_(2)Cl_(3)S_(3) presents increased Curie temperature and out-of-plane magnetic easy axis,suggesting greater application potential in 2D spintronic devices.

关键词： first-principles calculations 2D materials magnetic properties ferromagentic semiconductor

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LATS1 Promotes B-ALL Tumorigenesis by Regulating YAP1 Phosphorylation and Subcellular Localization

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Current Medical Science 2024年第1期44卷 81-92页

作者： Feng ZHANG Mohammed Awal Issah Hai-ying fu Hua-rong ZHOU Ting-bo LIU Jian-zhen SHEN fujian Provincial Key Laboratory on Hematology Fujian Medical Center of HematologyFujian Institute of HematologyClinical Research Center for Hematological Malignancies of Fujian ProvinceFujian Medical University Union HospitalFuzhou 350001China Tamale Technical University Faculty of Allied Health and Pharmaceutical SciencesDepartment of Medical Laboratory TechnologyTamale NS-011-2000Ghana Department of Hematology The Third Affiliated People's Hospital of Fujian University of Traditional Chinese MedicineThe Third People's Hospital of Fujian ProvinceFuzhou 350122China

Objective YAP1 plays a dual role as an oncogene and tumor suppressor gene in several tumors;differentiating between these roles may depend on the YAP1 phosphorylation *** specific function of YAP1 in B cell acute lymphoblastic leukemia(B-ALL),however,is currently ***,in the present study,the role of YAP1 in B-ALL was investigated using relevant cell lines and patient *** The effects of shRNA-mediated knockdown on YAP1 and LATS1 levels in the NALM6 and MOLT-4 cell lines were examined using Western blotting,quantitative real-time polymerase chain reaction,flow cytometry,immunostaining,and nude mouse subcutaneous tumorigenesis *** expression levels of Hippo pathway-related molecules before and after verteporfin(VP)treatment were compared using RNA-Seq to identify significant Hippo pathway-related genes in NALM6 *** Patients with ALL showing high YAP1 expression and low YAP1-Ser127 phosphorylation levels had worse prognoses than those with low YAP1 protein expression and high YAP1-Ser127 phosphorylation ***1-Ser127 phosphorylation levels were lower in NALM6 cells than in MOLT-4 and control cells;YAP1 was distributed in the nuclei in NALM6 *** of YAP1 inhibited MOLT-4 and NALM6 cell proliferation and arrested the NALM6 cell cycle in the G0/G1 *** and after VP treatment,the expression of the upstream gene LATS1 was upregulated;its overexpression promoted YAP1-Ser127 ***,YAP1 was distributed in the *** LATS1 may downregulate YAP1-Ser127 phosphorylation and maintain B-ALL cell function;thus,VP,which targets this axis,may serve as a new therapeutic method for improving the outcomes for B-ALL patients.

关键词： acute lymphoblastic leukemia large tumor suppressor kinase 1 phosphorylation RNA-Seq Yesl-associated protein

A Defense Planning Model for a Power System Against Coordinated Cyber-physical Attack

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Protection and Control of Modern Power Systems 2024年第5期9卷 84-95页

作者： Peiyun Li Jian fu Kaigui Xie bo Hu Yu Wang changzheng Shao Yue Sun Wei Huang State Key Laboratory of Power Transmission Equipment&System Secu-rity and New Technology Chongqing UniversityChongqing 400044China State Grid Chengdu Power Supply Com-pany State Grid Sichuan Electric Power Co.Ltd.Chengdu 610041China China Yangtze Power Co. LtdYichang 443002China

This paper proposes a tri-level defense planning model to defend a power system against a coor-dinated cyber-physical attack(CCPA).The defense plan considers not only the standalone physical attack or the cyber attack,but also coordinated *** defense strategy adopts coordinated generation and transmission expansion planning to defend against the *** the process of modeling,the upper-level plan represents the perspective of the planner,aiming to minimize the critical load shedding of the planning system after the *** load resources available to planners are extended to flex-ible loads and critical *** middle-level plan is from the viewpoint of the attacker,and aims at generating an optimal CCPA scheme in the light of the planning strategy determined by the upper-level plan to maximize the load shedding caused by the *** optimal operational behavior of the operator is described by the lower-level plan,which minimizes the load shedding by defending against the *** tri-level model is analyzed by the column and constraint generation algorithm,which de-composes the defense model into a master problem and *** studies on a modified IEEE RTS-79 system are performed to demonstrate the economic effi-ciency of the proposed *** Terms—Coordinated cyber-physical attack,flexible load,column-and-constraint generation,defense planning,robust optimization.

关键词： Coordinated cyber-physical attack flexible load column-and-constraint generation defense planning robust optimization.

An unexpected stereochemical effect of thio-substituted Asp in native chemical ligation

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Chinese Chemical Letters 2024年第8期35卷 278-281页

作者： Min fu Pan He Sen Zhou Wenqiang Liu bo Ma Shiying Shang Yaohao Li Ruihan Wang Zhongping Tan State Key Laboratory of Bioactive Substance and function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100050China Center of Pharmaceutical Technology School of Pharmaceutical SciencesTsinghua UniversityBeijing 100084China Chemical Engineering College Hebei Normal University of Science and TechnologyQinhuangdao 066600China

This study presents an unexpected finding that the cis isomer of β-thio-Asp exhibits higher ligation ac-tivity than the trans *** discovery sheds light on the intricate nature of native chemical ligation and highligh... 详细信息

关键词： Native chemical ligation Stereochemistry Ligation activity β-Thio-Asp Intramolecular hydrogen bond

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Evaluation of the energy budget of thermokarst lake in permafrost regions of the Qinghai-Tibet Plateau

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Advances in Climate change Research 2024年第4期15卷 636-646页

作者： Ze-Yong GAO fu-Jun NIU Yi-bo WANG Jing LUO Guo-An YIN Yun-Hu SHANG Zhan-Ju LIN Key Laboratory of Cryospheric Science and Frozen Soil Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of ScienceLanzhou 730000China College of Earth and Environment Science Lanzhou UniversityLanzhou 73000China

Thermokarst lake formation accelerates permafrost degradation due to climate warming,thereby releasing significant amounts of carbon into the atmosphere,complicating hydrological cycles,and causing environmental ***,the energy transfer mechanism from the surface to the sediment of thermokarst lakes remains largely unexplored,thereby limiting our understanding of the magnitude and duration of biogeochemical processes and hydrological ***,herein,a typical thermokarst lake situated in the center of the Qinghai-Tibet Plateau(QTP)was selected for observation and energy budget *** results showed that the net radiation of the thermokarst lake surface was 95.1,156.9,and 32.3 W m^(-2) for the annual,ice-free,and ice-covered periods,respectively,and was approximately 76%of the net radiation consumed by latent heat *** in heat storage in the thermokarst lake initially increased from January to April,then decreased from April to December,with a maximum change of 48.1 W m^(-2) in *** annual average heat fuxes from lake water to sediments were 1.4 W m^(-2);higher heat fluxes occurred during the ice-free season at a range of 4.9-12.0 W m^(-2).The imbalance between heat absorption and release in the millennium scale caused the underlying permafrost of the thermokarst lake to completely *** present,the ground temperature beneath the lake bottom at a depth of 15 m has reached 2.0℃.The temperatures and vapor-pressure conditions of air and lake surfaces control the energy budget of the thermokarst *** findings indicate that changes in the hydrologic regime shifts and biogeochemical processes are more frequent under climate warming and permafrost degradation.

关键词： Qinghai-Tibet Plateau Thermokarst lake Energy budget Permafrost degradation Hydrological cycle

N-doped hollow carbon nanospheres embedded in N-doped graphene forming a three-dimensional interconnected layered porous support loaded with palladium nanoparticles as an efficient electrocatalyst for formic acid oxidation

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新型炭材料(中英文) 2024年

作者： FANG Yue YANG fu-kai QU Wei-li DENG Chao WANG Zhen-bo Key Laboratory of Photochemical Biomaterials and Energy Storage Materials Shenzhen Key Laboratory of Special functional Materials Shenzhen Engineering Laboratory for Advance Technology of Ceramics Guangdong Research Center for Interfacial Engineering of Functional Materials College of Materials Science and Engineering Shenzhen University MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering State Key Lab of Urban Water Resource and Environment Harbin Institute of Technology College of Chemistry and Chemical Engineering Harbin Normal University No.1 Normal University South Road

The efficient electrocatalysts with low cost, high activity and good durability plays a crucial role in the application of direct formic acid fuel cells. Herein, Pd nanoparticles supported on N-doped hollow carbon nanospheres (NHCN) embedded in Ndoped graphene (NG) with three-dimensional (3D) layered porous configuration by a simple and economical method were investigated as direct formic acid fuel cell catalysts. Owing to the unique 3D interconnected layered porous configuration doped with nitrogen atoms, Pd/NHCN@NG catalyst with smaller Pd nanoparticle size shows large catalytic active surface area, superior electrocatalyticactivity,highsteady-statecurrentdensity,strongabilitytoresistCOpoisoning,farsurpassingthoseofconventionalPd/C,Pd/NG,andPd/***/GOratio,itisfoundthatwhenthe HCN/GO mass ratio is 1∶1, Pd/NHCN@NG catalyst has the most outstanding performance in catalytic oxidation of formic acid,with an activity 4.21 times that of Pd/C. This work has developed a superior carbon-based support material for electrocatalysts, which brings broad application prospects for the development of fuel cells.

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