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Green Energy & Environment 2024年第3期9卷 565-572页

作者： Huarong Fan Yubing Si Yiming Zhang fulong zhu Xin Wang Yongzhu Fu College of Chemistry and Center of Green Catalysis Zhengzhou UniversityZhengzhou450001China School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu611731China

Lithium-sulfur batteries(LSBs)with high energy densities have been demonstrated the potential for energy-intensive demand ***,their commercial applicability is hampered by hysteretic electrode reaction kinetics and the shuttle effect of lithium polysulfides(LiPSs).In this work,an interlayer consisting of high-entropy metal oxide(Cu_(0.7)Fe_(0.6)Mn_(0.4)Ni_(0.6)Sn_(0.5))O_(4) grown on carbon nanofibers(HEO/CNFs)is designed for *** CNFs with highly porous networks provide transport pathways for Li^(+) and e^(-),as well as a physical sieve effect to limit LiPSs *** particular,the grapevine-like HEO nanoparticles generate metal-sulfur bonds with LiPSs,efficiently anchoring active *** unique structure and function of the interlayer enable the LSBs with superior electrochemical performance,i.e.,the high specific capacity of 1381 mAh g^(-1) at 0.1 C and 561 mAh g^(-1) at 6 *** work presents a facile strategy for exploiting high-performance LSBs.

关键词： Electrospun carbon nanofibers Grapevine-like morphology Hierarchical physical sieve effect High-entropy induced chemisorption Lithium-sulfur battery

B-doped activated carbon as a support for a high-performance Zn-based catalyst in acetylene acetoxylation

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Green Energy & Environment 2022年第2期7卷 221-228页

作者： fulong zhu Mingyuan zhu Lihua Kang School of Chemistry and Chemical Engineering of Shihezi University ShiheziXinjiang832003China

A series of boron-doped(B-doped) catalysts with dissimilar mass ratios of boric acid and activated carbon(AC) were prepared by an impregnation method for acetylene *** introduction of a number of boron atoms activates the stable π electrons in AC,which not only enhances the electron transfer between Zn and the reactants,but also improves the adsorption ability of CH_(3)*** the conversion rate of CH_(3)COOH from 50% to 65% *** inductively coupled plasma(ICP) analysis confirmed the content of zinc approximately 7.3 wt% for both Zn/AC and Zn/0.02 B-AC-900 ***,X-ray photoelectron spectroscopy(XPS) analysis demonstrated that the introduction of boron changed the electron cloud density of Zn,and the strength of the Zn–O(from CH_(3)COOH) bond was *** addition,temperature-programmed desorption(TPD) analysis revealed that the Zn/0.02 B-AC-900 catalyst enhanced the adsorption of CH_(3)COOH and reduced the adsorption of C_(2)H_(2),thus the conversion rate of CH_(3)COOH was increased.

关键词： boron catalyst adsorption

Organopolysulfides as high-performance cathode materials for rechargeable aluminum-ion batteries

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Journal of Materials Science & Technology 2023年第23期154卷 159-165页

作者： Weiqin Chu Xu Zhang fulong zhu Shuaixia Li Yongzhu Fu Haijun Yu Institute of Advanced Battery Materials and Devices Faculty of Materials and Manufacturing Beijing University of Technology Beijing 100124 China Key Laboratory of Advanced Functional Materials Ministry of Education Beijing University of Technology Beijing 100124 China College of Chemistry Zhengzhou University Zhengzhou 450001 China

The development of aluminum-ion batteries(AIBs)is significantly confined by the limited high-performance cathode ***,organopolysulfides are investigated as active cathode materials to fabricate AIBs.A liquid-phase phenyl tetrasulfide(PTS)can deliver a capacity above 600 mAh g−1 after activation,with the maintenance of 253 mAh g−1 after 100 *** to the different S locations,PTS shows several voltage plateaus and an average voltage of∼0.7 V ***3+/Al with no decay upon *** importantly,the liquid PTS can serve as a high-Coulombic-efficiency cathode(∼99.88%±0.57%after stabilization),enlighting the design of high-efficiency and low-resistance conversion-type cathode materials for *** experimental characterizations accompanied by theoretical calculations,it is found that PTS undergoes stepwise reaction procedures during discharge with final products of Al2S3 and AlCl2-coordinated phenyl sulfide,and partially reforms with elemental S and other organopolysulfides during *** study demonstrates new opportunities for the design of high-efficiency conversion-type cathode materials for advanced AIBs.

关键词： Aluminum-ion batteries Cathode materials Organopolysulfides High coulombic efficiency

Chlorine-induced mixed valence of CuO_(x)/C to promote the electroreduction of carbon dioxide to ethylene

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Nano Research 2023年第7期16卷 8827-8835页

作者： Xin Wang Ming Miao Bowen Tang Haotian Duan fulong zhu Huigang Zhang Xian Zhang Wen-jin Yin Yongzhu Fu College of Chemistry Zhengzhou UniversityZhengzhou 450001China School of Physics and Electronic Science Hunan University of Science and TechnologyXiangtan 411201China State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Qian Xuesen Laboratory of Space Technology China Academy of Space TechnologyBeijing 100094China

Electrochemical conversion of CO_(2)(CO_(2)RR)into high-value fuel is identified as one of the promising approaches to achieve carbon *** synthesis of high-efficiency CO_(2)reduction electrocatalysts with high C_(2):C_(1) selectivity remains a field of intense *** studies have shown that the presence of Cu(I)is beneficial for the reduction of CO_(2)into C_(2)***,the stable presence of Cu(I)remains controversial,especially in the negative potential *** we report a simple and easily scalable catalyst precursor Cu_(2)(OH)_(3)Cl/C,which automatically forms in-situ chlorine-doped Cu/Cu_(2)O heterointerface during *** catalyst not only exhibits a Faradaic efficiency of 33.03%but also provides a long-term stability of Cu^(+),gaining a stable electrolysis of 11 h,with an ethylene/methane ratio over *** experimental results and mechanistic studies confirm that the presence of Cl^(-)inhibits the reduction of Cu^(+),inducing the formation of Cu^(0)/Cu^(+),and reduces the reaction energy of the intermediate ^(*)CO dimerization,thereby facilitating the formation of C_(2)*** work provides a feasible way to synthesize copper ions with long-term and stable positive charge in CO_(2)RR and expands a new way to synthesize ethylene industrial products in the future.

关键词： basic copper chloride chlorine dopant mixed-phase catalysts CO_(2)reduction reaction ethylene

Efficient ammonia production over e_(g)-occupancy-optimized perovskite electrocatalysts

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Nano Research 2024年第6期17卷 4682-4686页

作者： Mingfa Chen Yu Zhang fulong Liu Zhenbao Zhang Yuming Dong Yongfa zhu Heqing Jiang Jiawei zhu Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101China School of Chemistry and Chemical Engineering Linyi UniversityLinyi 276005China Department of Chemistry Tsinghua UniversityBeijing 100084China

Renewable-energy-driven nitrate(NO_(3)^(−))electroreduction to ammonia(NH_(3))(NERA)has been an attractive technology for decarbonizing NH_(3)production and wastewater *** NERA efficiency requires electrocatalysts that are earth-abundant and show fantastic *** we report a semiempirical activity descriptor of eg occupancy(of surface B-site cations)for identifying inexpensive perovskite oxides with extremely high efficacy toward *** establish the descriptor by systematic investigations of more than 10 perovskite *** investigations demonstrate that their intrinsic NERA activities display a volcano-shaped dependence on eg occupancy and the optimized intrinsic activities are accessible at near-1 eg *** could plausibly be attributed to the favorable overlaps between surface adsorbates and vertically-oriented eg *** importantly,utilizing this descriptor,we predict a highly active,selective,and durable NERA electrocatalyst with a composition of Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3−δ)(BSCF).Because of its close-to-1 e_(g)occupancy(i.e.~1.2),the BSCF features a superior NH_(3)production rate of 0.12 g·h^(−1)·mg_(cat.)^(−1)(Faradaic efficiency of 97.8%)that is at top of the volcano plot,and substantially outperforms most NERA electrocatalysts reported in literature.

关键词： perovskite oxide nitrate electroreduction ammonia electrosynthesis eg occupancy

Local Stress Field in Wafer Thinning Simulations with Phase Space Averaging

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Computers, Materials & Continua 2021年第7期68卷 743-759页

作者： Miaocao Wang Yuhua Huang Jinming Li Ling Xu fulong zhu School of Mechanical Science and Engineering Huazhong University of Science and TechnologyWuhan430074China School of Microelectronics Fudan UniversityShanghai200433China

From an ingot to a wafer then to a die,wafer thinning plays an important role in the semiconductor *** reveal the material removal mechanism of semiconductor at nanoscale,molecular dynamics has been widely used to investigate the grinding ***,most simulation analyses were conducted with a single phase space trajectory,which is stochastic and *** this paper,the stress field in wafer thinning simulations of 4H-SiC was obtained from 50 trajectories with spatial averaging and phase space *** spatial averaging was conducted on a uniform spatial grid for each trajectory.A variable named mask was assigned to the spatial point to reconstruct the shape of the *** spatial averaging parameters were applied and *** result shows that the summation of Voronoi volumes of the atoms in the averaging domain is more appropriate for spatial *** phase space averaging was conducted with multiple trajectories after spatial *** stress field converges with increasing the number of *** maximum and average relative difference(absolute value)of Mises stress was used as the convergence *** obtained hydrostatic stress in the compression zone is close to the phase transition pressure of 4H-SiC from first principle calculations.

关键词： Local stress field phase space alpha shape wafer thinning molecular simulation

Novel de novo TRPV4 mutation identified in a Chinese family with metatropic dysplasia inhibits chondrogenic differentiation

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Genes & Diseases 2024年第3期11卷 83-86页

作者： Ping Wei Weizhe Shi Tianying Nong Caixia Xian Xia Li Zhaohui Li Xin Li Jianping Wu Liyuan Shang fulong Xu Yibo Xu Hongwen Xu Mingwei zhu Guangzhou Institute of Pediatrics Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhouGuangdong 510623China Department of Pediatric Orthopedics Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhouGuangdong 510623China

Metatropicdysplasia(MD,MIM156530)is a rare congenital bone dysplasia primarily characterized by severe platyspondyly with long and wide vertebral bodies and dumbbell deformity of the tubular *** can be caused by heterozygous mutations in the gene encoding transient receptor potential vanilloid family member 4(TRPV4).We identifieda novel de novo mutation,c.2353T>C,in the TRPV4 gene,in a Chinese family with mild MD.

关键词： TRPV4 dysplasia congenital

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一种改善怠速舒适性的悬置系统研究

武汉大学学报:工学版 2023年第9期56卷 1131-1138页

作者：张东凯吴兵舰王斐朱福龙东风汽车集团有限公司东风商用车技术中心湖北武汉430000 陆军军事交通学院汽车士官学校安徽蚌埠233011 华中科技大学机械科学与工程学院湖北武汉430074

结合4缸发动机动力总成悬置系统6个自由度方向的振动存在的耦合现象引起的振动频率范围过长、振幅过高的振动特性,分析现有中型商用车悬置系统布置位置不合理的短板,并以优化悬置安装位置为设定目标,对现有悬置系统进行针对性的优化设... 详细信息

结合4缸发动机动力总成悬置系统6个自由度方向的振动存在的耦合现象引起的振动频率范围过长、振幅过高的振动特性,分析现有中型商用车悬置系统布置位置不合理的短板,并以优化悬置安装位置为设定目标,对现有悬置系统进行针对性的优化设计。通过HyperWorks软件计算出后动力总成的一弯节点位置,并通过ADAMS(automatic dynamic analysis of mechanical systems)多体仿真验证了将后悬置布置在一弯节点附近时悬置反力最小。将后悬中心后移290 mm至动力总成的一弯节点附近,分别对原方案与优化方案进行理论计算以验证优化效果,通过发动机怠速主观评价和扫描振动试验确认优化方案的怠速舒适性优于原方案,证明了优化悬置安装位置可以提高悬置系统怠速舒适性。

关键词：悬置系统传递率平均密度法解耦

冷光学用大口径2 k×2 k红外探测器组件封装技术

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红外与激光工程 2024年第5期53卷 73-82页

作者：朱海勇曾智江孙闻赵振力范广宇季鹏张启庄馥隆李雪中国科学院上海技术物理研究所传感技术联合国家重点实验室上海200083 中国科学院大学北京100049

大面阵和长线列红外探测器已成为下一代红外探测器的发展方向之一,针对于大面阵探测器低温封装的难点,提出了一种大面阵探测器组件封装结构。对组件低形变窗口支撑结构、低噪声冷平台结构以及低漏热兼高可靠性的引线键合工艺等方面进行... 详细信息

大面阵和长线列红外探测器已成为下一代红外探测器的发展方向之一,针对于大面阵探测器低温封装的难点,提出了一种大面阵探测器组件封装结构。对组件低形变窗口支撑结构、低噪声冷平台结构以及低漏热兼高可靠性的引线键合工艺等方面进行了研究,以中波红外2 k×2 k探测器组件为研究对象,通过200 K窗口低温光学设计和低形变窗口帽支撑方式实现组件低背景杂散光抑制设计和窗口形变控制。采用SiC基板实现探测器工作温度波动控制和噪声抑制,5 min内探测器温度波动小于0.1 K,噪声等效温差(NETD)小于20 mK。为了降低引线漏热和增强引线可靠性,采用铂铱丝键合工艺,引线漏热相较于金丝和硅铝丝下降至1/10,制冷机功率由72 W降至39 W。引线随组件通过随机和正弦力学试验考核。解决了大面阵探测器封装中杂散光、大口径窗口形变、探测器噪声、引线漏热和强度等一系列问题,该组件已成功运用于某项目2 k×2 k探测器封装中。

关键词：红外探测器 2 k×2 k 铂铱丝杜瓦组件

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真空碳热还原法炼铝的研究进展

真空科学与技术学报 2011年第6期31卷 765-774页

作者：袁海滨朱富龙杨斌徐宝强戴永年真空冶金国家工程实验室昆明理工大学昆明650093 云南省有色金属真空冶金重点实验室昆明理工大学昆明650093

综述了目前氧化铝碳热还原法及碳热还原-卤化法炼铝的研究进展,重点总结了上述炼铝法的机理及研究现状,讨论了金属铝的制备方法及其影响因素,并指出了制约上述各炼铝法金属铝直收率提高的影响因素。结果表明:常压及真空直接碳热还原法... 详细信息

综述了目前氧化铝碳热还原法及碳热还原-卤化法炼铝的研究进展,重点总结了上述炼铝法的机理及研究现状,讨论了金属铝的制备方法及其影响因素,并指出了制约上述各炼铝法金属铝直收率提高的影响因素。结果表明:常压及真空直接碳热还原法炼铝过程,由于氧化铝碳热还原过程生成的碳化铝,导致碳化铝、氧化铝和金属铝三元系在高温下相互熔解,以致气相不能分离,致使铝的提取率较低,且难以与渣相分离。真空碳热还原-硫化法炼铝存在低价硫化铝歧解得到的产物金属铝与硫化铝(Al2S3)的分离困难,且硫化铝易吸水潮解,生成剧毒物质H2S,造成环境污染;真空碳热还原-氯化法炼铝,虽产物金属铝与冷凝物氯化铝易于分离,但该法存在氯化铝对设备的腐蚀及含六个结晶水的氯化铝脱水处理问题,若能克服上述问题,则该过程就存在连续化作业的可能;而真空碳热还原-氟化法炼铝过程存在机理研究不清及炉型结构设计不合理,从而导致产物金属铝的直收率不高。

关键词：真空碳热还原碳热还原-卤化炼铝