检索结果-南通市图书馆

Revealing the solid electrolyte interface on calcium metal anodes

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2022年第7期31卷 174-190,I0005页

作者： Yumeng Zhao aoxuan wang Libin Ren Xingjiang Liu Jiayan Luo Key Laboratory for Green Chemical Technology of Ministry of Education State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin UniversityTianjin 300072China Shanghai Key Lab of Advanced High-Temperature Materials and Precision Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China National Key Laboratory of Science and Technology on Power Sources Tianjin Institute of Power SourcesTianjin 300384China

Owing to its low potential, crustal abundances and environmental friendliness, calcium metal anode(CMA) is emerging as a powerful contender in post-lithium era. However, the passivation of CMA fatally hinders its development. Recently, several feasible electrolytes have been developed. Nevertheless, as a pivotal part, the solid electrolyte interface(SEI) formed on CMA has not been paid enough attention to. In this review, based on the passivation mechanism of CMA, the favorable composition of SEI is emphasized with the corresponding electrolytes. It is considered that boron-containing and organic–inorganic hybrid SEI might be preferred. By comparing electrolytes and SEI on CMA with lithium and magnesium metal anodes, the root causes of CMA passivation are further elaborated, enlightening rational design rules of suitable SEI. Furthermore, some noteworthy details when assembling secondary calcium metal batteries(CMBs) are put forward. It is expected that deeper understanding of SEI on CMA will promote the development of CMBs.

关键词： Solid electrolyte interface Calcium metal anode Reversible deposition Passivation mechanism

Metal-organic cage as fluorescent probe for LiPF_(6)in lithium batteries

在线全文

学校读者我要写书评

暂无评论

Green Energy & Environment 2024年第10期9卷 1592-1600页

作者： Xi Li Dehua Xu aoxuan wang Chengxin Peng Xingjiang Liu Jiayan Luo Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China School of Materials Science and Engineering University of Shanghai Science and TechnologyShanghai200093China State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai200240China

Lithium hexafluorophosphate(LiPF_(6)),the most commonly used lithium battery electrolyte salt,is vulnerable to heat and *** and qualitative determination the variation of LiPF_(6)have always relied on advanced ***,we develop a fast,convenient,high-selective fluorescence detection method based on metal-organic cages(MOC),whose emission is enhanced by nearly 20 times in the presence of LiPF_(6)with good stability and photobleaching *** fluorescent probe can also detect moisture in battery *** propose and verify that the luminescence enhancement is due to the presence of hydrogen bond-induced enhanced emission effect in *** excitation-emission matrix spectra and variable-temperature nuclear magnetic resonance spectroscopy are employed to clarify the role of hydrogen bonds in guest-loaded *** functional theory(DFT)calculation is applied to simulate the structure of host-guest complexes and estimate the adsorption energy involved in the *** precisely matched lock-and-key model paves a new way for designing and fabricating novel host structures,enabling specific recognition of other target compounds.

关键词： Metal-organic cage Selective fluorescence probe Moisture detection Hydrogen bond Host-guest complex

Skin care design for lithium metal protection with cosmetics introduction

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2020年第9期29卷 383-389,I0011页

作者： Yurong Tu Qingtao Ma aoxuan wang Xinyue Zhang Guojie Li Jiayan Luo Xingjiang Liu Key Laboratory for Green Chemical Technology of Ministry of Education State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Ministry of Education Key Laboratory of Materials Processing and Mold(Zhengzhou University)Zhengzhou 450002HenanChina National Key Laboratory of Science and Technology on Power Sources Tianjin Institute of Power SourcesTianjin 300384China

Lithium metal anode(LMA)is the ultimate"Holy Grail"electrode for next generation high-energy-density ***,its instinct high reactivity is a formidable challenge and has intensified side reactions,destabilized the electrode/electrolyte interface and restricted the operating conditions strictly,thus hampering its practical ***,we"make up"the Li metal(M-Li)by constructing vaselinecoated layer by a simple dip-coating or casting *** the chemically stable and hydrophobic vaseline protective layer,the stability of Li towards humid and corrosive atmosphere has been greatly *** M-Li guaranteed stable and prolonged cycling life after the anode suffering from corrosion in moist air(relative humidity-65%)or corrosive electrolyte(with 10,000 ppm H2O or S)both in symmetric cells and LiFePO4 full *** work illustrates a convenient,economic,and industrial applicable method for stable LMA.

关键词： Li metal anode Interface Vaseline Corrosion resistance Industrial process

Processable Potassium Metal Anode for Stable Batteries

在线全文

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2022年第4期5卷 1278-1284页

作者： Zhenghang Wei aoxuan wang Xuze Guan Guojie Li Zhiwei Yang Chengde Huang Jing Zhang Libin Ren Jiayan Luo Xingjiang Liu Key Laboratory for Green Chemical Technology of Ministry of Education State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Key Laboratory of Materials Processing and Mold Zhengzhou UniversityMinistry of EducationZhengzhou 450002China Jiangxi Key Laboratory of Nanobiomaterials Institute of Advanced MaterialsEast China Jiaotong UniversityNanchang 330013China National Key Laboratory of Science and Technology on Power Sources Tianjin Institute of Power SourcesTianjin 300384China Shanghai Key Lab of Advanced High-Temperature Materials and Precision Forming School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China

The future of high-energy density electrochemical energy storage systems relies on the advancement of rechargeable batteries that utilize reactive metals as *** the alkaline metal,secondary battery systems because of abundant resource,high capacity and low redox potential,potassium(K)metal secondary battery(KMB)is expected to replace the existing lithiumion battery as a versatile platform for high-energy density,cost-effective energy storage ***,the difficulty in processing metal K results in nonstandard electrodes and hinders the development of ***,the mobility of the K metal anode due to its unique lowmelting point character at elevated temperatures in practical conditions leads to severe instability and risks in chemical/electrochemical ***,we fabricate a processable and moldable composite K metal anode by encapsulating K into reduced graphene oxide(rGO).The composite electrode can be engineered into various shapes discretionarily with precise sizes and stabilize the K metal anode at relatively high ***,the composite anode exhibits excellent cycling performance at high current density(8 mA cm^(-2)) with dendrite-free *** with a Prussian blue cathode,the rGO-K composite anode shows much improved electrochemical performance and extended lifetime.

关键词： K metal anode K metal battery processibility reduced graphene oxide stability

在线全文

学校读者我要写书评

暂无评论

可充电镁电池负极改性策略

高等学校化学学报 2021年第5期42卷 1357-1376,I0001页

作者：薛琳琳吕瑞景王澳轩罗加严天津大学化工学院天津300072

可充电镁电池具有理论体积比容量大、地壳丰度高、成本低、环境友好及更为安全等优点,是未来高能量存储系统发展的重要方向之一.在大多数传统电解液中,镁金属负极表面形成的钝化膜会阻碍镁的可逆沉积溶解过程,从而限制了可充电镁电池的... 详细信息

可充电镁电池具有理论体积比容量大、地壳丰度高、成本低、环境友好及更为安全等优点,是未来高能量存储系统发展的重要方向之一.在大多数传统电解液中,镁金属负极表面形成的钝化膜会阻碍镁的可逆沉积溶解过程,从而限制了可充电镁电池的商业化应用.由于存在成本高、合成步骤复杂、离子电导率低及难以同时与正负极兼容等问题,聚焦于解决镁负级钝化问题的电解液研究陷入瓶颈.因此,通过对镁电池负极进行修饰改性,使其在传统电解液中实现可逆过程是一种具有发展前景的策略.本文从合金负极及人工界面形成两方面总结了近年来用于可充电镁电池负极改性的策略,并在分析对比的基础上提出了进一步发展的结论和展望.

关键词：可充电镁电池合金负极人工界面传统电解液

在线全文

学校读者我要写书评

暂无评论

乡村学校课后服务政策执行的偏差与治理

教育学术月刊 2022年第8期 94-102页

作者：白雪李广王奥轩东北师范大学教育学部吉林长春130024 东北师范大学附属小学

国家实施课后服务政策旨在追求教育高质量发展,促进学生全面而有个性化的发展。乡村学校作为课后服务政策执行主体,在课后服务政策执行中存在替代式、残缺式与象征式执行偏差,导致课后服务在类型、课时、质量上呈现出“阴阳课表”问题... 详细信息

国家实施课后服务政策旨在追求教育高质量发展,促进学生全面而有个性化的发展。乡村学校作为课后服务政策执行主体,在课后服务政策执行中存在替代式、残缺式与象征式执行偏差,导致课后服务在类型、课时、质量上呈现出“阴阳课表”问题。课后服务政策在执行过程被“解码”出现偏差,其原因在于工具理性支配下乡村教育者理念功利化,资源匮乏掣肘下乡村教育者消极性应对,制度设计不完备下乡村教育者利己性博弈。为此,需要从价值理性归位、资源供给赋能、完善制度设计等几个方面进行防偏、消偏与纠偏。

关键词：课后服务乡村学校政策执行

在线全文

学校读者我要写书评

暂无评论

锂金属电池中的复合负极

物理化学学报 2021年第2期37卷 47-60页

作者：赵雨萌任凌霄王澳轩罗加严天津大学化工学院天津300072

锂金属具有理论比容量高、电位低等优点,被认为是电极中的“圣杯”。然而,锂金属负极在循环过程当中存在着不可控的枝晶生长、体积膨胀等问题,严重地阻碍了锂金属电池的商业化进程。本综述首先概述了锂枝晶的形成机理,然后对由小及大,... 详细信息

锂金属具有理论比容量高、电位低等优点,被认为是电极中的“圣杯”。然而,锂金属负极在循环过程当中存在着不可控的枝晶生长、体积膨胀等问题,严重地阻碍了锂金属电池的商业化进程。本综述首先概述了锂枝晶的形成机理,然后对由小及大,自内而外,总结了近年来三种不同层次的锂金属电池复合负极:锂金属负极内部结构的复合、锂金属电池内部结构的复合以及锂金属电池内部环境与外界操作条件的复合。最后,本综述对未来多层次锂金属电池复合负极的前景做出了展望。

关键词：锂金属电池锂枝晶复合负极内部结构外界操作条件多层次复合

在线全文

学校读者我要写书评

暂无评论

教育实习表现性评价的国际实践

外国教育研究 2021年第6期48卷 21-32页

作者：王奥轩李广苑昌昊东北师范大学教育学部吉林长春130024

教育实习表现性评价作为评估师范生教学实践能力的重要方式,具有发展主体专业素养和保障教师准入质量的双重功能,在追求教育高质量发展与教师专业化进程的背景下,引发了世界各国的关注与重视。澳大利亚、加拿大(安大略省)、法国、德国等... 详细信息

教育实习表现性评价作为评估师范生教学实践能力的重要方式,具有发展主体专业素养和保障教师准入质量的双重功能,在追求教育高质量发展与教师专业化进程的背景下,引发了世界各国的关注与重视。澳大利亚、加拿大(安大略省)、法国、德国等6个国家或地区在教育实习表现性评价的任务、主体、规则以及具体实施四个关键议题上展现出了真实工作嵌入、融合多方声音、搭建精细框架、秉持循证理念的一致性选择。这些理念逻辑与行动策略对优化我国教育实习评价具有一定的启示借鉴意义。

关键词：师范生教育实习表现性评价实践能力

从外延转向内涵:党的十八大以来中国特色教师教育发展的新格局

在线全文

学校读者我要写书评

暂无评论

现代教育管理 2022年第9期 20-28页

作者：李广苑昌昊王奥轩东北师范大学教育学部吉林长春130024

党的十八大以来,党中央高度重视教师教育事业的优先发展,中国特色教师教育进入了发展的战略机遇期。在从外延式发展向内涵式发展的转换过程中,中国特色教师教育发展产生了不断强化党对教师教育的领导、保障教师教育优先发展、推进“融... 详细信息

党的十八大以来,党中央高度重视教师教育事业的优先发展,中国特色教师教育进入了发展的战略机遇期。在从外延式发展向内涵式发展的转换过程中,中国特色教师教育发展产生了不断强化党对教师教育的领导、保障教师教育优先发展、推进“融合的教师教育”、全面深化教师教育改革、促进教师教育优质发展等格局性变化。经过十年发展,中国特色教师教育取得重要历史成就:教师队伍规模大幅提升,有力推进教育普及;补齐薄弱地区师资短板,有效推动教育均衡;教师学历层次普遍提高,办学质量显著提升;推动教育家型教师培养,形成名师领航效应。回应新时代中国特色社会主义发展的新内涵、新特征与新要求,展望党的二十大,着力落实立德树人根本任务、全面推进国家“强师计划”、动态监测教师教育发展质量、提高职前教师教育培养层次、提升应对未来能力,成为中国特色教师教育发展新格局内涵不断深化的基本愿景。

关键词：党的十八大以来中国特色教师教育新格局教师队伍建设