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in situ characterizations of advanced electrode materials for sodium-ion batteries toward high electrochemical performances

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Journal of Energy Chemistry 2023年第1期76卷 146-164,I0004页

作者： Xiu-Mei Lin Xin-Tao Yang Hao-Ning Chen Yong-Liang Deng Wen-Han Chen Jin-Chao Dong Yi-Min Wei Jian-Feng Li Department of Chemistry and Environment Science Fujian Province University Key Laboratory of Analytical ScienceMinnan Normal UniversityZhangzhou 363000FujianChina State Key Laboratory of Physical Chemistry of Solid Surfaces iChEMCollege of Chemistry and Chemical EngineeringCollege of EnergyCollege of MaterialsXiamen University Xiamen 361005FujianChina Contemporary Amperex Technology Co. Ningde 35210oFujianChina College of Optical and Electronic Technology China Jiliang UniversityHangzhou 310018ZhejiangChina Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province(IKKEM) Xiamen 361005FujianChina

Energy storage is an ever-growing global concern due to increased energy needs and resource exhaustion.Sodium-ion batteries(SIBs)have called increasing attention and achieved substantial progress in recent years owing to the abundance and even distribution of Na resources in the crust,and the predicted low cost of the technique.Nevertheless,SIBs still face challenges like lower energy density and inferior cycling stability compared to mature lithium-ion batteries(LIBs).Enhancing the electrochemical performance of SIBs requires an in-deep and comprehensive understanding of the improvement strategies and the underlying reaction mechanism elucidated by in situ techniques.In this review,commonly applied in situ techniques,for instance,transmission electron microscopy(TEM),Raman spectroscopy,X-ray diffraction(XRD),and X-ray absorption near-edge structure(XANES),and their applications on the representative cathode and anode materials with selected samples are summarized.We discuss the merits and demerits of each type of material,strategies to enhance their electrochemical performance,and the applications of in situ characterizations of them during the de/sodiation process to reveal the underlying reaction mechanism for performance improvement.We aim to elucidate the composition/structure-per formance relationship to provide guidelines for rational design and preparation of electrode materials toward high electrochemical performance.

关键词： Sodium-ion batteries(SIBs) in situ characterizations Electrode materials Composition/structure-performance

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in situ characterizations of solid-solid interfaces in solid-state batteries using synchrotron X-ray techniques

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Carbon Energy 2021年第5期3卷 762-783页

作者： Marcos Lucero Shen Qiu Zhenxing Feng School of Chemical Biologicaland Environmental EngineeringOregon State UniversityCorvallisOregonUSA

The solid-solid electrode-electrolyte interface represents an important component in solid-state batteries(SSBs),as ionic diffusion,reaction,transformation,and restructuring could all take place.As these processes strongly influence the battery performance,studying the evolution of the solid-solid interfaces,particularly in situ during battery operation,can provide insights to establish the structure-property relationship for SSBs.Synchrotron X-ray techniques,owing to their unique penetration power and diverse approaches,are suitable to investigate the buried interfaces and examine structural,compositional,and morphological changes.In this review,we will discuss various surface-sensitive synchrotron-based scattering,spectroscopy,and imaging methods for the in situ characterization of solid-solid interfaces and how this information can be correlated to the electrochemical properties of SSBs.The goal is to overview the advantages and disadvantages of each technique by highlighting representative examples,so that similar strategies can be applied by battery researchers and beyond to study similar solid-solid interface systems.

关键词： in situ characterizations solid-state battery solid-solid interface synchrotron X-ray

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高熵合金作为一种优异电催化剂的理解、合理设计和应用:综述

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Science China Materials 2023年第7期66卷 2527-2544页

作者：周元博沈晓魏王梦凡张莉芳钱涛晏成林路建美 Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry College of EnergySoochow UniversitySuzhou 215006China School of Chemistry and Chemical Engineering Nantong UniversityNantong 226019China School of Electrical Engineering Nantong UniversityNantong 226019China Light Industry Institute of Electrochemical Power Sources Suzhou 215600China

高熵合金近年来在电催化领域广受关注.由于其四大“核心效应”,即高熵效应、晶格畸变效应、迟滞扩散效应和鸡尾酒效应,高熵合金在诸多电催化反应中展现出了优异的活性和选择性.然而在已报道的文献综述中,有关其优异性能的理解以及合理... 详细信息

高熵合金近年来在电催化领域广受关注.由于其四大“核心效应”,即高熵效应、晶格畸变效应、迟滞扩散效应和鸡尾酒效应,高熵合金在诸多电催化反应中展现出了优异的活性和选择性.然而在已报道的文献综述中,有关其优异性能的理解以及合理设计的系统性总结仍然具有局限性.本文不仅综述了高熵合金电催化剂的特点和设计准则,还对其应用的最新进展进行了系统性的归纳整理,对高熵合金未来的发展具有指导意义.首先我们从多个角度阐明了高熵合金作为一种优异电催化剂的原因,包括其出色的机械性能、可优化的结构和组成、大量具有高本征活性的活性位点,以及出色的稳定性.为了进一步深入对高熵合金电催化剂的理解,我们还从设计准则、元素选择,以及理论计算预测材料性质等角度,详细介绍了高熵合金的合理设计.随后,我们介绍了高熵合金电催化剂在电解水、有机小分子氧化、燃料电池和碳/氮基转化反应的最新研究进展,其中还包括了一系列理论计算和原位表征在理解催化反应机理方面的应用.最后,我们展望了高熵合金电催化剂在未来发展中面临的挑战和机遇.

关键词： high-entropy alloys electrocatalyst rational design application in situ characterizations

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Interatomic electron transfer promotes electroreduction CO_(2)-to-CO efficiency over a CuZn diatomic site

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Nano Research 2023年第7期16卷 8863-8870页

作者： Jican Hao Han Zhu Qi Zhao Jiace Hao Shuanglong Lu Xiaofan Wang Fang Duan Mingliang Du Key Laboratory of Synthetic and Biological Colloids Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China School of Biological and Chemical Sciences Queen Mary University of LondonLondon E14NSUK

Diatomic site catalysts(DACs)with two adjacent atomic metal species can provide synergistic interactions and more sophisticated functionalities to break the bottleneck of intrinsic drawbacks of single atom catalysts(SACs).Herein,we have designed a CuZn diatomic site(CuZn-DAS)electrocatalyst with unique coordination structure(CuN_(4)-ZnN_(4))by anchoring and ordering the spatial distance between the metal precursors on the carbon nitride(C_(3)N_(4))derived N-doped carbon(NC)substrate.The CuZn-DAS/NC shows high activity and selectivity for electroreduction CO_(2)into CO.The Faradaic efficiency for CO of CuZn-DAS/NC(98.4%)is higher than that of Cu single atomic site on NC(Cu-SAS/NC)(36.4%)and Zn single atomic site on NC(Zn-SAS/NC)(66.8%)at-0.6 V versus reversible hydrogen electrode(vs.RHE).in situ characterizations reveal that the CuZn-DAS is more favorable for the formation and adsorption of^(*)COOH than those of the electrocatalysts with single atomic site.Theorical calculations show that the charge redistribution of Zn site in CuZn-DAS/NC caused by the considerable electron transfers from Zn atoms to the adjacent Cu atoms can reduce the adsorption energy barriers for^(*)COOH and^(*)CO production,improving the activity and CO selectivity.

关键词： CuZn diatomic site CO_(2)electroreduction reaction interatomic electron transfer in situ characterizations

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Promoting nitric oxide electroreduction to ammonia over electron-rich Cu modulated by Ru doping

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Science China Chemistry 2021年第9期64卷 1493-1497页

作者： Jiangwei Shi Changhong Wang Rong Yang Fanpeng Chen Nannan Meng Yifu Yu Bin Zhang Department of Catalysis Science and Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin300072China Institute of Molecular Plus School of ScienceTianjin UniversityTianjin300072China

Electrocatalytic nitric oxide(NO)reduction is a promising strategy to produce ammonia.Developing a facile approach to synthesize efficient catalysts with enhanced NO electroreduction performance is highly desirable.Here,a series of Ru-doped Cu materials are constructed through in situ electroreduction of corresponding metal hydroxides.The optimized Ru_(0.05)Cu_(0.95)exhibits superior electrocatalytic performance for ammonia synthesis by using NO/Ar(1/4,n/n)as the feedstocks(Faradaic efficiency:64.9%,yield rate:17.68μmol cm^(-2)h^(-1)),obviously outperforming Cu counterpart(Faradaic efficiency:33.0%,yield rate:5.73μmol cm^(-2)h^(-1)).Electrochemical in situ Fourier transform infrared(FTIR)spectroscopy and online differential electrochemical mass spectrometry(DEMS)are adopted to detect intermediates and unveil the possible reaction pathway.The downshift of the Cu d-band center induced by Ru doping facilitates the rate-limiting hydrogenation step and decreases the desorption energy of NH_(3),leading to high Faradaic efficiency and yield of ammonia.

关键词： Electrocatalysis NO ammonia synthesis in situ characterizations Ru-doped Cu

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Revealing Quasi-1D Volume Expansion in Na-/K-Ion Battery Anodes:A Case Study of Sb_(2)O_(3)Microbelts

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CCS Chemistry 2021年第5期3卷 1306-1315页

作者： Zheng Yi Daliang Fang Wanqun Zhang Jie Tian Shimou Chen Jianbo Liang Ning Lin Yitai Qian Department of Applied Chemistry Hefei National Laboratory for Physical Science at MicroscaleUniversity of Science and Technology of ChinaHefei 230026 Beijing Key Laboratory of Ionic Liquid Clean Process CAS Key Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190 Chemistry Experiment Teaching Center University of Science and Technology of ChinaAnhuli 230026 Experimental Center of Engineering and Material Science University of Science and Technology of ChinaHefei 230026 Department of Chemistry Capital Normal UniversityBeijing 100048

Tailoring a rational structure to control the huge volume variation is practical in regulating alkali-ion battery performance on the basis of the anisotropic properties of crystallized anode materials.Here,a double-serrated orthorhombic antimony oxide(Sb_(2)O_(3))microbelt was prepared by a thermally induced recrystallization/sublimation process.In situ transmission electron microscopy(TEM),in situ X-ray powder diffraction(XRD),and ex situ scanning electron microscopy(SEM)measurements demonstrate that Sb_(2)O_(3)microbelts exhibit a quasi-one-dimensional expansion perpendicular to the belt(along the[100]direction)during sodiation.The unconstrained microbelt surface space can appropriately accommodate the oriented volume variation.Thus,Sb_(2)O_(3)microbelts exhibit enhanced cycling and rate performance in half-cell sodium-ion batteries samples.Via support of reduced graphene oxide(RGO),Sb_(2)O_(3)@RGOcomposites deliver good rate capability(312.3 mAh g−1 at 3 A g−1)for sodium-ion full-cell batteries and good cycling performance(473.9 mAh g−1 at 100 mA g−1 after 100 cycles)for half-cell potassium-ion batteries.In situ Raman measurements reveal that the conversion/alloying-type Sb_(2)O_(3)anode undergoes a fully reversible alloying reaction and partially reversible conversion mechanism,which explains its irreversible capacity during the first cycle.The delicate structural design and clarification of the alkali-ion storage mechanisms facilitate the development of Sb_(2)O_(3)anodes for energy storage applications.

关键词： anisotropic volume expansion microbelts Sb_(2)O_(3) sodium-ion batteries in situ characterizations

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