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High critical current density in Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12) electrolyte via interfacial engineering with complex hydride

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Rare Metals 2024年第2期43卷 692-701页

作者： Ying-Tong Lv teng-Fei Zhang Zhao-Tong Hu Guang-Lin Xia Ze-Ya huang Zhen-hua Liu Li-hua Que Cai-Ting Yuan Fang-Qin Guo Takayuki Ichikawa Xue-Bin Yu College of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing210016China Centre for Hydrogenergy College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing210016China Department of Materials Science Fudan UniversityShanghai200433China Graduate School of Advanced Science and Engineering Hiroshima University1-4-1 KagamiyamaHigashi-Hiroshima739-8527Japan

Garnet-type solid-state batteries(SSBs)are considered to be one of the most promising candidates to realize next-generation lithium metal batteries with high energy density and ***,the dendrite-induced short-circuit and the poor interfacial contact impeded the practical ***,interface engineering to achieve low interfacial resistance without high temperature calcination was developed,which Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO)was simply coated with complex hydride(Li_(4)(BH_(4))_(3)I(3L1L))in various mass ratios n(Li_(4)(BH_(4))_(3)I)-(100−n)LLZTO(10≤n≤40).The interfacial conductivity increases by more than three orders of magnitude from 8.29×10^(−6)S·cm^(−1)to 1.10×10^(−2)S·cm^(−1).Symmetric Li cells exhibit a high critical current density(CCD)of 4.0 mA·cm^(−2) and an excellent cycling stability for 200 h at 4.0 mA·cm^(−2).SSBs with polymeric sulfur-polyacrylonitrile(SPAN)cathode achieve a high discharge capacity of 1149 mAh·g^(−1) with a capacity retention of 91%after 100 cycles(0.2 C).This attempt guides a simple yet efficient strategy for obtaining a stable Li/LLZTO interface,which would promote the development of solid-state batteries.

关键词： Hydrides Li_(6.4)La_(3)Zr_(1.4)Ta_(0.6)O_(12)(LLZTO) Critical current density Solid-state electrolytes(SSEs) Lithium-sulfur batteries

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基于车轮-桥面相干激励的大跨连续梁桥振动响应

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吉林大学学报（工学版） 2024年第2期54卷 436-444页

作者：韩智强谢刚卓亚娟骆佐龙李华腾太原科技大学车辆与交通工程学院太原030024 太原科技大学先进控制与装备智能化山西省重点实验室太原030024 山西大学电力与建筑学院太原030024

为获取桥面相干激励下大跨连续梁桥动力响应规律,基于虚功原理,建立五轴重载车辆动力学模型,采用模态叠加法建立桥梁动力方程,通过谐波叠加法建立桥面相干激励模型,根据轮-桥间几何和力学耦合关系,组建车轮-桥面相干激励模型,采用Matla... 详细信息

为获取桥面相干激励下大跨连续梁桥动力响应规律,基于虚功原理,建立五轴重载车辆动力学模型,采用模态叠加法建立桥梁动力方程,通过谐波叠加法建立桥面相干激励模型,根据轮-桥间几何和力学耦合关系,组建车轮-桥面相干激励模型,采用Matlab软件编译大跨连续梁桥车桥耦合振动分析系统,并开展不同等级的相干桥面激励模型对大跨连续梁桥动力响应影响研究。结果表明:当未考虑桥面不平顺影响时,桥梁冲击系数均小于规范取值,但随着桥面状况的恶化,结构典型截面的动力响应增长较快,且完全相干模型对桥梁动力响应的影响均大于部分相干激励模型,均超过规范值,其中挠度幅值最大偏差约为7.7%,弯矩幅值最大偏差约为20%,挠度冲击系数相对误差为4%~34%,弯矩冲击系数相对误差为2%~43%;随着车速的增大,桥梁冲击系数呈先增大后减小变化。最后,给出了大跨连续梁桥挠度和弯矩冲击系数包络图。相关研究成果可为连续梁桥的结构动力响应的分析与研究提供参考。

关键词：桥梁工程桥面相干激励模型车桥耦合动力响应冲击系数

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中空纤维液相微萃取-气相色谱-质谱联用法测定纺织品中的芳香胺

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化学研究与应用 2024年第5期36卷 1143-1147页

作者：麦宝华郭宗宁禹伟腾深圳市检验检疫科学研究院广东深圳518010 黄埔海关技术中心广东东莞523071 深圳海关工业品检测技术中心广东深圳518067

本文结合中空纤维液相微萃取(HF-LPME)与气相色谱-质谱(GC-MS)联用技术,建立了纺织品中邻氨基苯甲醚、2-甲氧基-5-甲基苯胺、2-萘胺、4-氨基联苯、3,3’-二氯联苯胺5种芳香胺类物质的分析方法。优化后的液相微萃取条件:样品溶液pH调节为... 详细信息

本文结合中空纤维液相微萃取(HF-LPME)与气相色谱-质谱(GC-MS)联用技术,建立了纺织品中邻氨基苯甲醚、2-甲氧基-5-甲基苯胺、2-萘胺、4-氨基联苯、3,3’-二氯联苯胺5种芳香胺类物质的分析方法。优化后的液相微萃取条件:样品溶液pH调节为12,以甲苯为萃取溶剂,在室温及300 rpm搅拌速度下,萃取30min。富集倍数最高能达185倍。方法的检测线性范围0.05~10μg·mL^(-1),检出限均低于10 ng·mL^(-1),精密度(RSD,n=6)为3.8~7.9%,回收率为84.0~119.8%。

关键词：中空纤维液相微萃取气相色谱质谱偶氮染料芳香胺纺织品

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A novel heterogeneous Co(Ⅱ)-Fenton-like catalyst for efficient photodegradation by visible light over extended pH

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Science China Chemistry 2020年第12期63卷 1825-1836页

作者： Wu-hua Chen jin-hua Xiong Xue teng jin-Xiao Mi Zhi-Biao Hu Haifeng Wang Zuofeng Chen Fujian Provincial Colleges and University Engineering Research Center of Solid Waste Resource Utilization(Longyan University) College of Chemistry and Material ScienceLongyan UniversityLongyan 364012China Shanghai Key Laboratory of Chemical Assessment and Sustainability School of Chemical Science and EngineeringTongji UniversityShanghai 200092China Key Laboratory for Advanced Materials Centre for Computational Chemistry and Research Institute of Industrial CatalysisEast China University of Science and TechnologyShanghai 200237China Department of Materials Science and Engineering College of MaterialsXiamen UniversityXiamen 361005China

A novel Co^Ⅱ-Fenton-like heterogeneous catalyst,(H3O)2[Co^Ⅱ(phen)(H2O)2]2[Mo^Ⅵ5O15(PO4)2]·4H2O (phen=1,10-phenanthroline,C12N2H8)(1),is synthesized and utilized for photocatalytic degradation of organic dyes and antibiotic in a wide range of *** experimental results show that 1 acting as the Fenton-like catalyst with H2O2 exhibits remarkable activity at pH 3–9 under vis-light irradiation and is merited with excellent recyclability and reusability.A variety of analytical methods,including in-situ electron paramagnetic resonance (EPR) spectroscopy and density functional theory (DFT) calculations,are applied to study the mechanism on generation of·OH and O2^·-radicals for photocatalytic *** suggests that,unlike the classical Fenton process involving the redox transformation of the central cations,the generation of·OH and O2^·-radicals is associated with the substitution of the coordinating water molecules at Co(Ⅱ) by H2O2 and/or OOH^-,followed by the light-driven O–O bond cleavage and *** outcomes of this study are striking which overcome the obstacles in the classical Fe^Ⅱ-Fenton process,including the slow redox transformation between Fe(Ⅱ) and Fe(Ⅲ) and the production of massive iron precipitates especially at elevated *** opens up new avenues for the development of the high-performance Fenton(-like) catalysts for photocatalytic degradation over extended pH and provides new insight into the related process.

关键词： Co^Ⅱ-Fenton-like reagent polyoxometalate photocatalytic degradation density functional theory(DFT)calculations in-situ EPR spectroscopic analysis

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DDAH1 promotes neurogenesis and neural repair in cerebral ischemia

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Acta Pharmaceutica Sinica B 2024年第5期14卷 2097-2118页

作者： Qiming Gao Pinfei Ni Yilin Wang Peiyun Huo Xiaojie Zhang Sihan Wang Fuyao Xiao Yixuan Li Wei Feng juntao Yuan teng Zhang Qiang Li Boyu Fan Yuhao Kan Zhirui Li Yimiao Qi junfei Xing Zhenghong Yang Haixiao Cheng Xinran Gao Xiaoyan Feng Ming Xue Yang Liu Yumin Luo Zhongbing Lu Yuming Zhao Department of Pharmacology School of Basic Medical SciencesCapital Medical UniversityBeijing 100069China Cerebrovascular Diseases Research Institute and Department of Neurology Xuanwu Hospital of Capital Medical UniversityBeijing 100053China State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of ChemistryChinese Academy of SciencesBeijing 100190China College of Life Science University of Chinese Academy of SciencesBeijing 100049China Department of Laboratory Animal School of Basic Medical SciencesCapital Medical UniversityBeijing 100069China Department of Physiology and Pathophysiology School of Basic Medical SciencesCapital Medical UniversityBeijing 100069China

Choline acetyltransferase(ChAT)-positive neurons in neural stem cell(NSC)niches can evoke adult neurogenesis(AN)and restore impaired brain function after injury,such as acute ischemic stroke(AIS).However,the relevant mechanism by which ChAT+neurons develop in NSC niches is poorly *** RNA-seq analysis revealed that dimethylarginine dimethylaminohydrolase 1(DDAH1),a hydrolase for asymmetric ng,ng-dimethylarginine(ADMA),regulated genes responsible for the synthesis and transportation of acetylcholine(ACh)(Chat,Slc5a7 and Slc18a3)after stroke *** dual-luciferase reporter assay further suggested that DDAH1 controlled the activity of ChAT,possibly through hypoxia-inducible factor 1α(HIF-1α).KC7F2,an inhibitor of HIF-1α,abolished DDAH1-induced ChAT expression and suppressed *** expected,DDAH1 was clinically elevated in the blood of AIS patients and was positively correlated with AIS *** comparing the results among Ddah1 general knockout(KO)mice,transgenic(TG)mice and wild-type(WT)mice,we discovered that DDAH1 upregulated the proliferation and neural differentiation of NSCs in the subgranular zone(SGZ)under ischemic *** a result,DDAH1 may promote cognitive and motor function recovery against stroke impairment,while these neuroprotective effects are dramatically suppressed by NSC conditional knockout of Ddah1 in mice.

关键词： DDAH1 Neurogenesis Neural repair ChAT HIF-1α ACh Stroke ADMA

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A sensitive and validated LC-MS/MS method for high-throughput determination of pomalidomide in human plasma and pharmacokinetic studies

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Chinese Chemical Letters 2022年第2期33卷 916-919页

作者： Chang Shu teng-Fei Li Duo Li Zhong-Qiu Li Xing-hua Xia State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Department of Pharmaceutical Analysis School of PharmacyChina Pharmaceutical UniversityNanjing 210009China School of Pharmacy Department of Clinical PharmacologySir Run HospitalNanjing Medical UniversityNanjing 211166China

Pomalidomide is an immunomodulatory agent (IMiD) that has been approved by the US Food and Drug Administration (FDA) for clinical treatment of patients with multiple *** this work,we developed a sensitive and validated LC-MS/MS method for high-throughput determination of pomalidomide over the range of 1.006-100.6 ng/mL(R^(2)=0.9991) in human plasma and pharmacokinetic studies.A liquid-liquid extraction method using ethyl acetate was applied to extract pomalidomide and afatinib (as an internal standard,IS) from human *** separation was performed on a Hedera ODS column (150 mm×2.1 mm,5μm) with security guard C18 column (4 mm×2.0 mm) at 40℃.Methanol and 10 mmol/L aqueous solution of ammonium acetate containing 0.1%formic acid were used as a gradient elution mobile phase,and the flow rate was 0.4 mL/min.A triple quadruple tandem mass spectrometer using multiplex reaction monitoring mode (MRM) with electrospray ionization (ESI) positive ionization was *** precursor to product ion transitions for the quantitative analysis of pomalidomide and the IS were m/z 274.2→163.1 and m/z 486.1→371.1,*** established method has been validated according to regulatory guideline,and the results were all within the acceptance *** validated LC-MS/MS method was successfully applied to analyze samples obtained from clinical pharmacokinetics study after oral administration of pomalidomide (4 mg) capsules in human.

关键词： Pomalidomide Liquid-liquid extraction LC–MS/MS method Pharmacokinetic Human plasma

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Thermodynamics and performance of Al/CuO nanothermite with different storage time

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Defence Technology（防务技术） 2021年第3期17卷 741-747页

作者： Cheng-ai Wang jian-bing Xu Yun Shen Yue-ting Wang teng-long Yang Ze-hua Zhang Fu-wei Li Rui-qi Shen Ying-hua Ye School of Chemical Engineering Nanjing University of Science&TechnologyNanjing210094People’s Republic of China Micro-Nano Energetic Devices Key Laboratory of MIIT Nanjing210094People’s Republic of China

The storage stability of energetic materials is important for its application. Here, the storage stability of Al/CuO nanothermite, which was prepared by electrospray method and stored with different storage time, was systematically researched. The activation energy of Al/CuO nanothermite was calculated by differential scanning calorimetry(DSC). The ignition temperature and the curve pressure history of Al/Cu O nanothermite was measured using ignition temperature measuring device and constant-volume pressurization tests, respectively. Further, the thermites were characterized by X-ray Diffractometer(XRD), X-ray photoelectron spectroscopy(XPS), scanning electron microscope(SEM) and Transmission electron microscopy(TEM). The results show that the morphology of the thermites did not change significantly. The activation energy was decreased from 254.1 k j/mol to 181.8 k j/mol after storage for 13 months. When stored for 0, 7 and 13 months, the peak pressures of Al/CuO nanothermite were 685.8 k Pa,626.3 k Pa and 625.5 k Pa, respectively. In addition to the ignition temperature, it was 775 ℃, 739 ℃ and754 ℃, respectively. This result indicated that the ignition and combustion properties of Al/CuO nanothermite are obviously reduced when stored for a long time, at room temperature.

关键词： Al/CuO Nanothermites Stroage stability Thermodynamics

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Estimating canopy closure density and above-ground tree biomass using partial least square methods in Chinese boreal forests

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journal of Forestry Research 2012年第2期23卷 191-196页

作者： LEI Cheng-liang jU Cun-yong CAI Ti-jiu j.ng Xia WEI Xiao-hua DI Xue-ying School of Forestry Northeast Forestry UniversityHarbin 150040P.R.China College of Geomatics Xi'an University of Science and TechnologyXi'an 710054P.R.China Department of Earth and Environmental Science University of BritishColumbia(Okanagan)3333 University wayKelownaBritish Colum-biaCanadaV1V 1V7.

Boreal forests play an important role in global environment systems. Understanding boreal forest ecosystem structure and function requires accurate monitoring and estimating of forest canopy and biomass. We used partial least square regression （PLSR） models to relate forest parameters, i.e. canopy closure density and above ground tree biomass, to Landsat ETM＋ data. The established models were optimized according to the variable importance for projection （VIP） criterion and the bootstrap method, and their performance was compared using several statistical indices. All variables selected by the VIP criterion passed the bootstrap test （p〈0.05）. The simplified models without insignificant variables （VIP 〈1） performed as well as the full model but with less computation time. The relative root mean square error （RMSE%） was 29% for canopy closure density, and 58% for above ground tree biomass. We conclude that PLSR can be an effective method for estimating canopy closure density and above ground biomass.

关键词： above-ground tree biomass bootstrap method canopy clo- sure density partial least square regression (PLSR) VIP criterion

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Pomolic acid and its glucopyranose ester promote apoptosis through autophagy in HT-29 colon cancer cells

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World journal of Gastrointestinal Oncology 2023年第10期15卷 1756-1770页

作者： Li-Yan Liu teng-hua Yu Tie-Song Liao Peng Xu Ying Wang Min Shi Bin Li Workstation of Academician Jiangxi University of Chinese MedicineNanchang 330004Jiangxi ProvinceChina Department of Pharmacy Jiangxi Cancer Hospital and Jiangxi Cancer CenterNanchang 330029Jiangxi ProvinceChina Department of Breast Surgery Jiangxi Cancer Hospital and Jiangxi Cancer CenterNanchang 330029Jiangxi ProvinceChina Laboratory Animal Science and Technology Center Jiangxi University of Chinese MedicineNanchang 330004Jiangxi ProvinceChina Department of Pharmacy Shangrao Health SchoolShangrao 334000Jiangxi ProvinceChina

BACKGROUND Colon cancer remains a leading cause of death *** acid(PA)can be separated from the ethyl acetate fraction of achyrocline *** To determine the effects of PA and its glucopyranose ester,pomolic acid-28-O-β-D-glucopyranosyl ester(PAO),on colon cancer HT-29 *** 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay was used to measure cell *** was detected via hoechst 33342 *** single staining was identified by flow cytometry to determine the cycle and scratch assay was used to observe the migration of HT-29 *** levels of mRNA and proteins were evaluated by q polymerase chain reaction and western blotting,*** PA and PAO considerably inhibited the growth of the HT-29 cell line in a time and dose-dependent *** the administration of PA and PAO for 24 and 48 h,cell apoptosis was significantly promoted and HT-29 cells were arrested in the G0/G1 *** Bax/Bcl2 ratio was also increased,which activated cysteinyl aspartate specific proteinase 3,leading to apoptosis;it also increased the expression of light chain 3 II/I and Beclin1,which activated autophagy and caused cell *** in turn increased the expression of p62 to promote cell apoptosis,inhibiting the levels of signal transducer and activator of transcription 3(STAT3)and p-STAT3,suppressing the level of Bcl2,and promoting *** Both PA and PAO provide novel therapeutic strategies for treating colorectal cancer.

关键词： Colon cancer Achyrocline satureioides Pomolic acid Pomolic acid-28-O-β-D-glucopyranose

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Nitrogen-rich metal-organic framework mediated Cu-N-C composite catalysts for the electrochemical reduction of CO_(2)

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journal of Energy Chemistry 2021年第3期30卷 555-563页

作者： Si-Min Cao hua-Bo Chen Bao-Xia Dong Qiu-Hui Zheng Yan-Xia Ding Meng-jie Liu She-Liang Qian Yun-Lei teng Zong-Wei Li Wen-Long Liu School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002ZhejiangChina

Cu-based MOFs,i.e.,HKUST-1,etc.,have been pertinently chosen as the pristine materials for CO_(2) ER due to the unique ability of copper for generation hydrocarbon ***,the limited conductivity and stability become the stumbling-block that prevents the development of *** exploring of MOFsderived M-C materials starts a new chapter for the MOFs precursors,which provides a remarkable electronic connection between carbon matrix and metals/metal oxides.N-doped M-N-C with extensive M-N sites scattering into the carbon matrix are more popular because of their impressive contribution to catalytic activity and specific product ***,Cu-N-C system remained undeveloped up to *** lack of ideal precursor,the sensitivity of Cu to be oxidized,and the difficulties in the synthesis of small size Cu nanoparticles are thus known as the main barriers to the development of Cu-N-C ***,a nitrogen-rich Cu-BTT MOF is employed for the derivation of N-doped Cu-N-CT composite electrocatalysts by the pyrolyze ***-temperature pyrolysis product of Cu-N-C1100exhibits the best catalytic activity for productions of CO(-0.6 V ***,jCO=0.4 mA/cm^(2))and HCOOH(-0.9 V ***,jHCOOH=1.4 mA/cm^(2)).

关键词： Carbon mono-oxide Formic acid Metal-organic framework Nitrogen-rich Copper nanoparticle Catalyst

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