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Dual-Functional Electrode Promoting Dendrite-Free and CO_(2) Utilization Enabled High-Reversible Symmetric Na-CO_(2) Batteries

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Energy & Environmental Materials 2024年第3期7卷 123-132页

作者： Changfan Xu Jiajia Qiu Yulian Dong Yueliang Li Yonglong Shen huaping zhao Ute Kaiser Guosheng Shao Yong Lei Fachgebiet Angewandte Nanophysik Institut für Physik&IMN MacroNanoTechnische Universität Ilmenau 98693Ilmenau Germany Central Facility for Electron Microscopy Electron Microscopy Group of Materials ScienceUlm UniversityUlm 89081Germany School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001China

Sodium-carbon dioxide(Na-CO_(2))batteries are regarded as promising energy storage technologies because of their impressive theoretical energy density and CO_(2)reutilization,but their practical applications are restricted by uncontrollable sodium dendrite growth and poor electrochemical kinetics of CO_(2)*** suitable multifunctional electrodes for dendritefree anodes and kinetics-enhanced CO_(2)cathodes is considered one of the most important ways to advance the practical application of Na-CO_(2)***,RuO2 nanoparticles encapsulated in carbon paper(RuCP)are rationally designed and employed as both Na anode host and CO_(2)cathode in Na-CO_(2)*** outstanding sodiophilicity and high catalytic activity of RuCP electrodes can simultaneously contribute to homogenous Na+distribution and dendrite-free sodium structure at the anode,as well as strengthen discharge and charge kinetics at the *** morphological evolution confirmed the uniform deposition of Na on RuCP anode with dense and flat interfaces,delivering enhanced Coulombic efficiency of 99.5%and cycling stability near 1500 ***,Na-CO_(2)batteries with RuCP cathode demonstrated excellent cycling stability(>350 cycles).Significantly,implementation of a dendrite-free RuCP@Na anode and catalytic-site-rich RuCP cathode allowed for the construction of a symmetric Na-CO_(2)battery with long-duration cyclability,offering inspiration for extensive practical uses of Na-CO_(2)batteries.

关键词： CO_(2)cathode dendrite free electrocatalysis Na metal anode symmetric CO_(2)batteries

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Hierarchical Sb-Ni nanoarrays as robust binder-free anodes for high-performance sodium-ion half and full cells

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Nano Research 2017年第9期10卷 3189-3201页

作者： Liying Liang Yang Xu Liaoyong Wen Yueliang Li Min Zhou Chengliang Wang huaping zhao Ute Kaiser Yong Lei Institute of Physics & IMN MacroNano (ZIK) Ilmenau University of Technology Professor Schmidt Strasse 26 98693 Ilmenau Germany Central Facility for Electron Microscopy Electron Microscopy Group of Materials Science UIm University Albert~Einstein-Allee 11 89081 UIm Germany

A novel hierarchical electrode material for Na-ion batteries composed of Sb nanoplates on Ni nanorod arrays is developed to tackle the issues of the rapid capacity fading and poor rate capability of Sb-based materials. The three-dimensional (3D) Sb-Ni nanoarrays as anodes exhibit the synergistic effects of the two-dimensional nanoplates and the open and conductive array structure as well as strong structural integrity. Further, their capacitive behavior is confirmed through a kinetics analysis, which shows that their excellent Na-storage performance is attributable to their unique nanostructure. When used as binder-free sodium-ion battery (SIB) anodes, the nanoarrays exhibit a high capacity retention rate (more than 80% over 200 cycles) at a current density of 0.5 A·g–1 and excellent rate capacity (up to 20 A·g–1), with their capacity being 580 mAh·g–1. Moreover, a P2-Na2/3Ni1/3Mn2/3O2//3D Sb-Ni nanoarrays full cell delivers a highly reversible capacity of 579.8 mAh·g–1 over 200 cycles and an energy density as high as 100 Wh·kg–1. This design strategy for ensuring fast and stable Na storage may work with other electrode materials as well.

关键词： hierarchical Sb-Ni nanoarrays binder-free anode capacitive charge storage Na-ion full cell

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Research progress of transition metal compounds as bifunctional catalysts for zinc-air batteries

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Nano Research Energy 2024年第1期3卷 78-100页

作者： Yan Ran Changfan Xu Deyang Ji huaping zhao Liqiang Li Yong Lei Fachgebiet Angewandte Nanophysik Institut für Physik&IMN MacroNanoTechnische Universität IlmenauIlmenau 98693Germany Tianjin Key Laboratory of Molecular Optoelectronic Sciences Department of ChemistryInstitute of Molecular Aggregation ScienceTianjin UniversityTianjin 300072China

Zinc-air batteries(ZABs)are widely studied because of their high theoretical energy density,high battery voltage,environmental protection,and low ***,the slow kinetics of oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)on the air electrode limits the further application of ZABs,so that how to develop a cheap,efficient,and stable catalyst with bifunctional catalytic activity is the key to solving the development of *** metal compounds are widely used as cathode materials for ZABs due to their low cost,high electrocatalytic activity,and stable *** review summarizes the research progress of transition metal compounds as bifunctional catalysts for *** development history,operation principle,and mechanism of ORR and OER reactions are introduced *** application and development of transition metal compounds as bifunctional catalysts for ZABs in recent years are systematically introduced,including transition metal oxides(TMOs),transition metal nitrides(TMNs),transition metal sulfides(TMSs),transition metal carbides(TMCs),transition metal phosphates(TMPs),and *** addition,the shortcomings of transition metal compounds as bifunctional catalysts for ZABs were summarized and reasonable design strategies and improvement measures were put forward,aiming at providing a reference for the design and construction of high-performance ZABs cathode ***,the challenges and future in this field are discussed and prospected.

关键词： transition metal compounds zinc-air batteries bifunctional catalysts electrochemical air electrode

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Unexpected intercalation-dominated potassium storage in WS2 as a I potassium-ion battery anode

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Nano Research 2019年第12期12卷 2997-3002页

作者： Vuhan Wu Yang Xu Yueliang Li Pengbo Lyu Jin Wen Chenglin Zhang Min Zhou Yaoguo Fang huaping zhao Ute Kaiser Yong Lei Fachgebiet Angewandte Nanophysik Institutfiir Physik&ZMN MacroNano(ZIK)Technische Universitat IlmenauIlmenau 98693Germany Department of Chemistry University College LondonLondon WC1H OAJUK Central Facility for Electron Microscopy Electron Microscopy Group of Materials ScienceUlm UniversityUlm 89081Germany Department of Physical and Macromolecular Chemistry Faculty of ScienceCharles University12843 Prague 2Czech Republic Institute of Organic Chemistry and Biochemistry Academy of Sciences of the Czech Republic16610 Prague 6Czech Republic

Unexpected intercalation-dominated process is observed duri ng K^+insertion in WS2 in a voltage range of 0.01-3.0 *** is different fromthe previously reported two-dimensional(2D)transition metal dichalcogenides that undergo a conversion reaction in a low voltage rangewhen used as anodes in potassium-ion ***/discharge processes in the K and Na cells are studied in parallel to demonstrate thedifferention storage *** Na^+storage proceeds through intercalation and conversion reactions while the K^+storage is governedby an intercalation *** to the reversible K^+intercalation in the van der Waals gaps,the WS2 anode exhibits a low decay rate of 0.07%per cycle,delivering a capacity of 103 mAh·g^-1 after 100 cycles at 100 mA·g^-*** maintains 57%capacity at 800 mA·g^-1 and shows stablecyclability up to 400 cycles at 500 mA·g^-*** study proves the facilitation of K^+transport is derived from the intercalation-dominatedmecha ***,the mechanismis verified by the density functional theory(DFT)calculations,showing that the progressive expansion of the interlayer space can account for the observed results.

关键词： potassium-ion battery anode WS2 intercalation

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Insights into Nano-and Micro-Structured Scaffolds for Advanced Electrochemical Energy Storage

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Nano-Micro Letters 2024年第7期16卷 187-230页

作者： Jiajia Qiu Yu Duan Shaoyuan Li huaping zhao Wenhui Ma Weidong Shi Yong Lei Fachgebiet Angewandte Nanophysik Institut Für Physik and IMN MacroNanoTechnische Universit.t Ilmenau98693 IlmenauGermany Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization Faculty of Metallurgical and Energy EngineeringKunming University of Science and TechnologyKunming 650093People’s Republic of China School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013People’s Republic of China School of Science and Technology Pu’er UniversityPu’er 665000People’s Republic of China

Adopting a nano-and micro-structuring approach to fully unleashing the genuine potential of electrode active material benefits in-depth understandings and research progress toward higher energy density electrochemical energy stor-age devices at all technology readiness *** to various challenging issues,especially limited stability,nano-and micro-structured(NMS)electrodes undergo fast electrochemical performance *** emerging NMS scaffold design is a pivotal aspect of many electrodes as it endows them with both robustness and electrochemical performance enhancement,even though it only occupies comple-mentary and facilitating components for the main ***,extensive efforts are urgently needed toward optimizing the stereoscopic geometrical design of NMS scaffolds to minimize the volume ratio and maximize their functionality to fulfill the ever-increasing dependency and desire for energy power source *** review will aim at highlighting these NMS scaffold design strategies,summariz-ing their corresponding strengths and challenges,and thereby outlining the potential solutions to resolve these challenges,design principles,and key perspectives for future research in this ***,this review will be one of the earliest reviews from this viewpoint.

关键词： Nano-and micro-structured Interconnected porous Scaffolds Electrode design Electrochemical energy storage

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Highly-rough surface carbon nanofibers film as an effective interlayer for lithium–sulfur batteries

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Journal of Semiconductors 2020年第9期41卷 141-146页

作者： Hongfan Zhu Mo Sha huaping zhao Yuting Nie Xuhui Sun Yong Lei Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesCollaborative Innovation Centre of Suzhou Nano Science and TechnologySoochow UniversitySuzhou 215123China Fachgebiet Angewandte Nanophysik Institut für Physik&IMN MacroNano®(ZIK)Technische Universität IlmenauIlmenau 98693Germany

Lithium–sulfur(Li–S)battery with a new configuration is demonstrated by inserting a flexible nitrogen-doping carbon nanofiber(N-CNFs)interlayer between the sulfur cathode and the *** N-CNFs film with high surface roughness and surface area is fabricated by electrospinning and a subsequent calcination *** N-CNFs film interlayer not only effectively traps the shuttling migration of polysulfides but also gives the whole battery reliable electronic conductivity,which can effectively enhance the electrochemical performance of Li–S ***,Li–S batteries with long cycling stability of 785 mAh/g after 200 cycles and good rate capability of 573 mAh/g at 5 C are achieved.

关键词： Interlayer N-CNFs Li–S battery electrospinning

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城市创新效率对不动产投资结构的影响研究

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系统工程理论与实践 2024年第2期44卷 529-545页

作者：王荣赵华平张所地山西财经大学管理工程研究中心太原030006

本文选取2008–2020年中国地级以上城市的面板数据,通过基于数据包络分析的FP(Fare-Primont)指数法测度了城市的创新效率,运用面板双固定效应模型和工具变量法,实证检验了城市的创新效率对不动产投资结构的影响效应;通过构建的住宅-非... 详细信息

本文选取2008–2020年中国地级以上城市的面板数据,通过基于数据包络分析的FP(Fare-Primont)指数法测度了城市的创新效率,运用面板双固定效应模型和工具变量法,实证检验了城市的创新效率对不动产投资结构的影响效应;通过构建的住宅-非住宅不动产投资的非线性动态系统模型,分析了不同创新效率城市不动产投资结构的稳定性.检验结果表明:城市当期与上一期的创新效率均会显著促进非住宅不动产投资比重,并呈非线性作用模式.在不同创新效率城市中,不动产投资结构都存在稳定值,且高创新效率城市的稳定值>中创新效率城市的稳定值>低创新效率城市的稳定值.因此,当地政府应结合城市的创新发展定位,合理运用调控政策,促进不动产市场的健康发展;同时,还应根据城市创新效率水平变化和城市间创新效率差异,因时制宜、因城施策,调整不动产投资结构.

关键词：不动产投资结构创新效率非线性动态系统稳定比重

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高灵敏度显色反应测定水中痕量汞的研究

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工业水处理 2006年第9期26卷 73-74页

作者：赵桦萍齐齐哈尔大学化学化工学院黑龙江齐齐哈尔161006

探讨水中汞的分光光度测定方法。在β-环糊精和曲拉通X-100存在下,基于汞与2-(5-溴吡啶-2-偶氮)-5-二乙氨基苯酚的显色反应,采用分光光度法进行测定。结果表明,配合物的最大吸收波长为565nm,表观摩尔吸光系数为4.60×105L/(***),汞质量... 详细信息

探讨水中汞的分光光度测定方法。在β-环糊精和曲拉通X-100存在下,基于汞与2-(5-溴吡啶-2-偶氮)-5-二乙氨基苯酚的显色反应,采用分光光度法进行测定。结果表明,配合物的最大吸收波长为565nm,表观摩尔吸光系数为4.60×105L/(***),汞质量浓度在0～960μg/L范围内服从比尔定律,线性回归方程:A=0.0023c+0.0071(c为汞的质量浓度,μg/L),相关系数r=0.9984。本方法已用于水中痕量汞的测定,结果令人满意。

关键词：汞 β-环糊精分光光度法

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β-环糊精交联聚合物树脂相分光光度法测定水中痕量汞

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离子交换与吸附 2007年第5期23卷 464-468页

作者：赵桦萍赵丽杰白丽明齐齐哈尔大学化学与化学工程学院齐齐哈尔161006 齐齐哈尔大学化学与化学工程学院

以β-环糊精和环氧氯丙烷为原料合成了环糊精聚合树脂,将其作为显色剂2-[5-溴-(2-吡啶偶氮)]-5-二乙氨基苯酚的载体,采用β-环糊精-2-[5-溴-(2-吡啶偶氮)]-5-二乙氨基苯酚树脂相分光光度法测定微量汞。配合物的最大吸收波长为585nm,表... 详细信息

以β-环糊精和环氧氯丙烷为原料合成了环糊精聚合树脂,将其作为显色剂2-[5-溴-(2-吡啶偶氮)]-5-二乙氨基苯酚的载体,采用β-环糊精-2-[5-溴-(2-吡啶偶氮)]-5-二乙氨基苯酚树脂相分光光度法测定微量汞。配合物的最大吸收波长为585nm,表观摩尔吸光系数为8.17×105L/***,汞含量在0~10μg/25mL范围内服从比尔定律,线性回归方程:y=0.0013+0.0163x,相关系数r=0.9994,加标回收率为98.5%~101.0%,与双硫腙法相比无显著性差异。该方法已用于工业废水中痕量汞的测定,结果令人满意。

关键词：环糊精交联聚合物树脂相分光光度法 2-(5-溴吡啶-2-偶氮)-5-二乙氨基苯酚汞

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β-环糊精增敏催化动力学光度法测定亚硝酸根

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化工环保 2016年第2期36卷 226-229页

作者：赵桦萍齐齐哈尔大学化学与化学工程学院黑龙江齐齐哈尔161006

在磷酸介质中利用亚硝酸根催化条件下溴酸钾氧化甲基红的褪色反应,建立了β-环糊精（β-CD）增敏催化动力学光度法,对亚硝酸根进行测定。该方法最佳反应条件为：0.05 mol/L甲基红溶液加入量8.0%（φ,下同）,0.1 mol/L溴酸钾溶液加入量12... 详细信息

在磷酸介质中利用亚硝酸根催化条件下溴酸钾氧化甲基红的褪色反应,建立了β-环糊精（β-CD）增敏催化动力学光度法,对亚硝酸根进行测定。该方法最佳反应条件为：0.05 mol/L甲基红溶液加入量8.0%（φ,下同）,0.1 mol/L溴酸钾溶液加入量12.0%,1.0 mol/L稀磷酸加入量12.0%,0.15 mol/Lβ-CD溶液加入量16.0%,反应温度40℃,反应时间15 min。亚硝酸根测定的线性范围为8.0×10^-6-6.0×10^-4 g/L,线性回归方程的相关系数为0.996 6,检出限为4.0×10^-7 g/L。亚硝酸根的加标回收率为99.0%-102.0%,水样测定结果的相对标准偏差为2.4%-3.2%。加入β-CD后测定亚硝酸根的灵敏度增加了2.5倍。

关键词：甲基红溴酸钾催化动力学光度法亚硝酸根 β-环糊精增敏作用

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