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Effect of Ti Additions on Mechanical and Thermodynamic Properties of W-Ti Alloys: A First-principles Study

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 246-257页

作者： ZHANG Jian NIE wei HUANG Jin ZHU Ke LIU Ruxia ZHANG Ruizhi LUO Guoqiang SHEN qiang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China

The mechanical and thermodynamic properties of W-Ti alloys(including W_(15)Ti_(1),W_(14)Ti_(2),W_(12)Ti_(4) and W_(8)Ti_(8) alloys)were investigated by the first-principles approach based on density functional *** results indicate that W-Ti alloys except W_(8)Ti_(8) are thermodynamically *** modulus and hardness of W-Ti alloys are smaller than those of pure tungsten and gradually decrease with increasing Ti ***,their B/G ratios and Poisson's ratios exceed those of pure tungsten,suggesting that the introduction of Ti decreases the mechanical strength while enhancing the ductility of W-Ti *** thermal expansion coefficients for W-Ti alloys all surpass those of pure tungsten,indicating that the introduction of titanium exacerbates the thermal expansion behavior of W-Ti ***,elevated pressure has the capacity to suppress the thermal expansion tendencies in titanium-doped tungsten *** study offers theoretical insights for the design of nuclear materials by exploring the mechanical and thermodynamic properties of W-Ti alloys.

关键词： first-principles mechanical properties thermodynamic properties tungsten-titanium alloys

A low redox potential and long life organic anode material for sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： Zhi Li Yang wei Kang Zhou Xin Huang Xing Zhou Jie Xu Taoyi kong Junwei Lucas Bao Xiaoli Dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Fudan University Department of Chemistry Boston College School of Materials Science and Engineering Anhui University of Technology

Sodium-ion batteries （SIBs） with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials（>1 V）.Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material （tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na4TDC） has been developed with low redox potential （<0.7 V） and excellent cyclic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na4TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg *** pairing with a thick Na3V2（PO4）3cathode (20.6 mg cm-2),the as-fabricated full cell exhibited high operating voltage （2.8 V）,excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na4TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

Integration of perioperative features and intragraft TCF7L2 expression to predict lipid metabolic disorder in liver transplant recipients

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Science China Life Sciences 2025年第1期68卷 297-299页

作者： Junbin Zhou Rongli wei Guanghan Fan Zhengxing Lian Xuanyu Zhang Linsong Tang Zhetuo Qi Haiyang Xie Shusen Zheng qiang wei Xiao Xu Department of Hepatobiliary and Pancreatic Surgery People's Hospital of LishuiAffiliated Lishui Hospital of Wenzhou Medical UniversityThe First Affiliated Hospital of Lishui University NHFPC Key Laboratory of Combined Multi-Organ Transplantation Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province Department of Hepatobiliary and Pancreatic SurgeryHangzhou First People's Hospital Department of Hepatobiliary and Pancreatic Surgery The First Affiliated HospitalZhejiang University School of Medicine Department of Urology The Second Affiliated HospitalZhejiang University School of Medicine Department of Hepatobiliary and Pancreatic Surgery Department of Liver TransplantationShulan (Hangzhou) Hospital Hangzhou Medical College Zhejiang University School of Medicine

Dear Editor, Liver transplantation(LT) is the only curative therapy for patients with endstage liver disease(He et al., 2023; Ling et al., 2022). Post-transplant hypertriglyceridemia(PTHT), which has an incidence of up to 32.8% in 6 months after LT, is one of the major post-transplant complications(Toshima et al., 2020).

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On-surface stereoconvergent synthesis, dimerization and hybridization of organocopper complexes

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Science China Chemistry 2019年第1期62卷 126-132页

作者： Chi Zhang qiang Sun Huihui kong Chunxue Yuan wei Xu Interdisciplinary Materials Research Center College of Materials Science and Engineering Tongji University

Despite the vital role of stereoconvergent synthesis in modern chemistry, the on-surface stereoconvergent synthesis of organometallic complexes involving transformation among several stereoisomers to one specific form has been few reported. By combination of high-resolution scanning tunneling microscopy(STM) imaging/manipulation and density functional theory(DFT) calculations, we have displayed the stereoconvergent synthesis of organocopper complexes via the Cu-alkene interaction and further dimerization into H-shaped motifs, in which two cis-forms and one trans-form are involved, and the specific adsorption configuration of one cis-form is revealed to be the key for such a synthesis. Furthermore, the generality of the dimerization of organocopper complexes has also been verified by codeposition of two similar molecular precursors, and the hybridized K-shaped motifs(made up of two kinds of organocopper complexes) have been successfully achieved. These findings may provide atomic-scale insights into the synthesis of specific stereoisomers in the fields of pharmaceuticals, biochemistry and organometallic chemistry.

关键词： scanning tunneling microscopy density functional theory surface chemistry organometallic complex stereoconvergent synthesis

2017年兰州市七里河区居民死因监测及4种主要慢性病早死概率分析

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职业与健康 2020年第6期36卷 783-786页

作者：禄韶华史庭筠苗佳丽魏琳颜魏孔强兰州市七里河区疾病预防控制中心甘肃兰州730050 兰州大学公共卫生学院甘肃兰州730000

目的了解2017年兰州市七里河区居民的死亡水平及主要死亡原因,为制定疾病预防控制策略提供参考依据。方法采用2017年兰州市七里河区疾病预防控制中心收集的居民全死因监测数据,户籍人口信息源自兰州市七里河区公安局;计算该地区粗死亡... 详细信息

目的了解2017年兰州市七里河区居民的死亡水平及主要死亡原因,为制定疾病预防控制策略提供参考依据。方法采用2017年兰州市七里河区疾病预防控制中心收集的居民全死因监测数据,户籍人口信息源自兰州市七里河区公安局;计算该地区粗死亡率、标化死亡率、期望寿命、去死因期望寿命及早死概率等指标。结果2017年兰州市七里河区居民粗死亡率为637.83/10万,标化死亡率为732.81/10万,男性居民死亡率高于女性(χ^2=82.187,P<0.05);三大类疾病中主要死因为慢性非传染性疾病(90.76%);当地居民期望寿命为76.82岁,男性74.68岁,女性79.01岁,四种主要慢性病(心脑血管疾病、恶性肿瘤、慢性呼吸系统疾病、糖尿病)所致的寿命损失分别为5.51、2.43、1.58和0.60岁,去除影响后寿命分别增加7.17%、3.16%、2.06%和0.78%;四种主要慢性病总的早死概率为15.30%,心脑血管疾病、恶性肿瘤、慢性呼吸系统疾病、糖尿病分别为6.23%、7.61%、1.24%和1.01%,男性居民的早死概率是女性的2.21倍。结论影响2017年兰州市七里河区居民健康的疾病类型主要是慢性病,已成为严重的公共卫生问题,应给予重点关注并采取有效的干预措施。

关键词：死因监测慢性病去死因期望寿命早死概率

酸性饲粮对东方蜜蜂微孢子虫繁殖与蜜蜂免疫力的影响

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福建农林大学学报（自然科学版） 2025年第1期54卷 117-124页

作者：魏秀秀陈雅黄强江西农业大学蜜蜂研究所江西农业大学动物科学技术学院江西南昌330045

【目的】研究酸性饲粮对东方蜜蜂微孢子虫繁殖和意大利蜜蜂免疫力的影响,验证酸性饲粮是否能够防治蜜蜂微孢子虫疾病,为在养蜂中合理使用酸性饲料提供科学依据。【方法】以意大利蜜蜂为研究对象,选取400只新出房蜜蜂,随机分为4组,分别... 详细信息

【目的】研究酸性饲粮对东方蜜蜂微孢子虫繁殖和意大利蜜蜂免疫力的影响,验证酸性饲粮是否能够防治蜜蜂微孢子虫疾病,为在养蜂中合理使用酸性饲料提供科学依据。【方法】以意大利蜜蜂为研究对象,选取400只新出房蜜蜂,随机分为4组,分别为对照组、微孢子虫组、微孢子虫+柠檬酸组(含50 g·L^(-1)柠檬酸)和微孢子虫+醋酸组(含400 mL·L^(-1)醋酸),每组100只,检测并分析感染后第1天和第3天免疫基因的相对表达量,统计分析感染7 d后蜜蜂体内微孢子虫数量和蜜蜂存活率。【结果】4个试验组之间的存活率差异极显著(P0.05)。在微孢子虫组中,蜜蜂感染3 d内检测到11个免疫基因的相对表达量未显著下降(P>0.05),但酸性饲粮处理组中的部分免疫基因PGRPSC4300和Abaecin的表达量显著下降(P<0.05)。【结论】含有50 g·L^(-1)柠檬酸和400 mL·L^(-1)醋酸的饲粮无法抑制微孢子虫繁殖,也不能提高蜜蜂免疫力和存活率,不适用于治疗蜜蜂微孢子虫病。

关键词：东方蜜蜂微孢子虫意大利蜜蜂酸性饲粮免疫基因存活率

Thermo-oxidative ageing behavior of cerium oxide/silicone rubber

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Journal of Rare Earths 2020年第4期38卷 436-444页

作者： qiang He Guangfei Wang Yong Zhang Zhanjun Li Linghao kong wei Zhou Key Laboratory of Aeronautical Special Rubber Anyang Institute of TechnologyAnyang 455000China College of Quality and Technical Supervision Hebei UniversityBaoding 071002China

Cerium oxide/silicon rubber was prepared via mechanical *** and frictional properties,as well as thermal stability after thermo-oxidative ageing were investigated in this rubber composite.3D surface profilometry,scanning electron microscopy(SEM)and thermogravimetry analysis(TGA)were used to study the friction surface characteristics,friction mechanism and thermal stability,***,swelling experiments were carried out to investigate the variation of crosslinking *** thermo-oxidative ageing,the tear strength of cerium oxide/silicon rubber ***,in the early ageing stage,improvements in tensile strength,elongation at break,and frictional performance are caused by crosslinking density ***,the addition of cerium oxide remarkably improves the re-cross linking degree during ageing process,which in turn decreases the number of holes on the friction surface and endows the silicon rubber with better mechanical and frictional properties,as well as thermo-oxidative ageing resistance.

关键词： Cerium oxide/silicone rubber Thermo-oxidative ageing Mechanical property Frictional property Thermal stability Rare earths

Three-dimensional matrix for lithium metal anode for next-generation rechargeable batteries: Structure design and interface engineering

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Journal of Energy Chemistry 2019年第6期28卷 167-168页

作者： Long kong qiang Zhang Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical Engineering Tsinghua University

The next-generation batteries with very high energy/power densities, affordable cost, safe operation are of paramount importance to electric vehicles and grid-scale storage. Lithium (Li) metal anode paired with conversion reaction cathodes (sulfur and oxygen) is regarded as a Holy Grail research because such battery system can employ earth-abundant elements and afford 3?5 times higher energy density than current lithium ion batteries (3500 Wh kg^-1 for lithium-oxygen batteries and 2600 Wh kg^-1 for lithium-sulfur batteries)[1].

关键词： Lithium metal anode Carbon nanofibers Nitrogen doped carbon nanomaterials Dendrite formation Electrochemical energy storage

Magnetron sputtered nickel oxide with suppressed interfacial defect states for efficient inverted perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 348-355页

作者： Guoqiang Ma Qin Tan Zhaoning Li Jingwei Xiu Jiafeng Wang Tianle Cheng Dong He qiang Sun Xuhang Ma Francesco Lamberti Zhubing He Department of Materials Science and Engineering Institute of Innovative Materials (I2M) Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG)Southern University of Science and Technology (SUSTech) Core Research Facilities Southern University of Science and Technology Department of Chemical Sciences Department of Industrial Engineering University of Padova

Widely used spin-coated nickle oxide （NiOx） based perovskite solar cells often suffer from severe interfacial reactions between the NiOxand adjacent perovskite layers due to surface defect states,which inherently impair device performance in a long-term view,even with surface molecule *** this study,we developed high-quality magnetron-sputtered NiOxthin films through detailed process optimization,and compared systematically sputtered and spin-coated NiOxthin film surfaces from materials to *** sputtered NiOxfilms exhibit improved crystallinity,smoother surfaces,and significantly reduced Ni3+or Ni vacancies compared to their spin-coated ***,the interface between the perovskite and sputtered NiOxfilm shows a substantially reduced density of defect *** solar cells （PSCs） fabricated with our optimally sputtered NiOxfilms achieved a high power conversion efficiency （PCE） of up to 19.93%and demonstrated enhanced stability,maintaining 86.2% efficiency during 500 h of maximum power point tracking under one standard sun ***,with the surface modification using (4-(2,7-dibromo-9,9-dimethylacridin-10（9H）-yl)butyl)p hosphonic acid （DMAcPA）,the device PCE was further promoted to 23.07%,which is the highest value reported for sputtered NiOxbased PSCs so far.

关键词： Perovskite