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Application of in-situ characterization techniques in modern aqueous batteries

Rare Metals 2024年第8期43卷 3553-3575页

作者： Jia-Hao Wu Hong-Wei Cai Zhao-Hui Deng Jean-Jacques Gaumet Yu Bao Wen Luo Department of Physics State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingSchool of Materials Science and EngineeringWuhan University of TechnologyWuhan430070China Laboratoire de Chimie Et Physique:Approche Multi-Echelles Des Milieux Complexes(LCP-A2MC)Institut Jean BarriolUniversitéde Lorraine57070MetzFrance Department of Medicinal Chemistry Hubei College of Chinese MedicineJingzhou 434020China

The development of high-performance aqueous batteries calls for an in-depth knowledge of their chargedischarge redox and failure mechanism,as well as a systematic understanding of the dynamic evolution of microstructure,phase composition,chemical composition,and local chemical environment of the materials for ***-situ characterization technology is expected to understand and reveal the problems faced by aqueous rechargeable batteries,such as the dissolution of electrode materials,the growth of metal negative electrode dendrites,passivation,corrosion,side reactions and a series of *** on this,typical in-situ characterization techniques and their basic mechanisms are summarized,including in-situ optical visualization,in-situ microscopy techniques(in-situ scanning electron microscopy(SEM),in-situ transmission electron microscopy(TEM)),in-situ X-ray techniques(in-situ X-ray diffraction(XRD),in-situ X-ray photoelectron spectroscopy(XPS),in-situ near-edge structural X-ray absorption spectroscopy(XANES)),and in-situ spectroscopy techniques(in-situ Raman spectroscopy,in-situ Fourier transform infrared(FTIR)).Moreover,some emerging techniques concerning aqueous battery research,especially gas evolution and materials dissolution issues,such as in-situ electrochemical quartz crystal microbalance(EQCM).in-situ fiber-optic sensing,in-situ gas chromatography(GC) are *** last,the applications of advanced in-situ characterizations in future research of aqueous batteries are emphasized and discussed,along with some of the remaining challenges and possible solutions.

关键词： Aqueous battery In-situ characterization Phase transformation Solid electrolyte interphase Zinc dendrite growth

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Three-dimensional ordered hierarchically porous carbon materials for high performance Li-Se battery

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Journal of Energy Chemistry 2022年第5期31卷 624-636页

作者： Hongyan Li Wenda Dong Chao Li Tarek Barakat Minghui Sun Yingying Wang Liang Wu Lang Wang Lei Xia Zhi-Yi Hu Yu Li Bao-Lian Su Laboratory of Inorganic Materials Chemistry(CMI) University of NamurB-5000 NamurBelgium Namur Institute of Structured Matter(NISM) University of NamurB-5000 NamurBelgium State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430074HubeiChina

Developing host materials with high specific surface area, good electron conductivity, and fast ion transportation channel is critical for high performance lithium-selenium(Li-Se) batteries. Herein, a series of three dimensional ordered hierarchically porous carbon(3D OHPC) materials with micro/meso/macropores are designed and synthesized for Li-Se battery. The porous structure is tuned by following the concept of the generalized Murray’s law to facilitate the mass diffusion and reduce ion transport *** optimized 3D Se/OHPC cathode exhibits a very high 2 nd discharge capacity of 651 m Ah/g and retains 361 m Ah/g after 200 cycles at 0.2 C. Even at a high current rate of 5 C, the battery still shows a discharge capacity as high as 155 m Ah/g. The improved electrochemical performance is attributed to the synergy effect of the interconnected and well-designed micro, meso and macroporosity while shortened ions diffusion pathways of such Murray materials accelerate its ionic and electronic conductivities leading to the enhanced electrochemical reaction. The diffusivity coefficient in Se/OHPC can reach a very high value of 1.3 × 10^(-11)cm^(2)/s, much higher than those in single pore size carbon hosts. Their effective volume expansion accommodation capability and reduced dissolution of polyselenides ensure the high stability of the battery. This work, for the first time, established the clear relationship between textural properties of cathode materials and their performance and demonstrates that the concept of the generalized Murray’s law can be used as efficient guidance for the rational design and synthesis of advanced hierarchically porous materials and the great potential of 3D OHPC materials as a practical high performance cathode material for Li-Se batteries.

关键词： 3D ordered hierarchically porous carbon(OHPC) Shuttle effect Cyclability High rate capability The generalized Murray’s law Li-Se batteries

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In Situ Tin Doping to Enhance the Cycling Performance of 4.9 V LNMO Cathode materials 7

In Situ Tin Doping to Enhance the Cycling Performance of 4.9...

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7th International Conference on Power and Energy Applications, ICPEA 2024

作者： Li, Yan Du, Jinqiao Liang, Zhaojie Tian, Jie Wang, Pei Luo, Wen Electric Power Scientific Research Institute Shenzhen Power Supply Bureau Co. Ltd Shenzhen China Wuhan University of Technology State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan China

ISBN: (纸本)9798350356113

LiNi0.5Mn1.5O4 (LNMO) cathode material has the advantages of high energy density (650 Wh/kg), high discharge voltage (4.7 V vs Li+/Li), low raw material cost, low pollution, and high lithium ion transmission efficiency. It is a potential high power, low cost cobalt-free lithium-ion battery cathode material. However, the capacity decline of LNMO during high voltage charge and discharge processes leads to short cycle life, which limits its wide application and commercialization. To address this issue, this article uses in-situ Sn doping to enhance the cycle stability of LNMO. By uniformly mixing acetate salts in stoichiometric ratio and using one-step spray drying method to prepare undoped and Sn-doped LNMO cathode materials, this study systematically investigates the structural changes, morphological characteristics, and electrochemical performance before and after doping. The capacity retention rates of Sn-doped LNMO materials after 350 cycles at 0.7C are 93.5% and 94.5%, respectively, significantly higher than the undoped 80.8%, indicating that in-situ Sn doping can significantly enhance cycle performance. This study demonstrates that the LiNi0.5Mn1.46O0.04 electrode prepared by spray drying method, with its simple and straightforward synthesis process and excellent electrochemical performance, has the potential to become a high-performance lithium-ion batteries cathode material. © 2024 IEEE.

关键词： Lithium-ion batteries

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Copper silicate nanoneedle arrays on reduced graphene oxide like "shelter forest" guiding Zn gradient deposition

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Green Energy and Environment 2025年第5期10卷 967-981页

作者： Gao, Na Wang, Yang Gao, Zhanming Lv, Tianming Rong, Mengyu Dong, Xueying Chen, Dongzhi Meng, Changgong Zhang, Yifu State Key Laboratory of Fine Chemicals School of Chemistry Dalian University of Technology Dalian116024 China State Key Laboratory of New Textile Materials & Advanced Processing Technology Wuhan Textile University Wuhan430073 China Hubei Key Laboratory of Radiation Chemistry and Functional Materials School of Nuclear Technology and Chemistry & Biology Hubei University of Science and Technology Xianning437100 China College of Environmental and Chemical Engineering Dalian University Dalian116622 China

With the sustainable and efficient development of aqueous zinc ion batteries (AZIBs), the research on addressing the issues of the adaptability and durability of zinc anodes has been hot-topic and is still of great challenge. In this work, inspired by the sand treatment and afforestation of the Gobi Beach in Northwest China to ameliorate the problem of wind and sand encroachment, we propose a material with a morphology similar to that of a "shelter forest", CuSiO3 nanoneedles arrays grown on both sides of reduced graphene oxide (rGO@CuSi), as a coating layer on the zinc metal surface to guide Zn gradient deposition. The presence of rGO improves the electrical conductivity of CuSiO3, and the finite element simulation of the electric field and Zn2+ concentration proves that the electric field distribution can be effectively homogenized and the local current density can be reduced for the rGO@CuSi-Zn electrode with the surface presenting the shape of a protective forest. This is due to the abundant pores between the nano-needle array structures on the surface of the electrode, which provide high electron and ion transport paths, and are conducive to achieving uniform Zn deposition, like the principle of wind-sand stabilization by protective forest. Both electrochemical experiments and density functional theory calculations show that the negatively charged surface of rGO@CuSi with good Zn affinity is more capable of guiding Zn2+ transport. Thanks to its inherent material and structural characteristics, the rGO@CuSi-Zn anode has a high specific capacity and good cycling stability. This study provides insight for interface engineering like protective forest to accelerate the commercialization of high-performance Zn-based batteries. © 2024 Institute of Process Engineering, Chinese Academy of Sciences

关键词： Nanoneedles

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Ultra-Thin Carbon-Doped Bi_(2)WO_(6) Nanosheets for Enhanced Photocatalytic CO_(2) Reduction

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Transactions of Tianjin University 2021年第4期27卷 338-347页

作者： Han Li Junchao Zhang Jiaguo Yu Shaowen Cao State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

The photocatalytic reduction of CO_(2) is a promising strategy to generate chemical ***,this reaction usually suf-fers from low photoactivity because of insuffi cient light absorption and rapid charge *** engineering has become an eff ective approach to improve the photocatalytic ***,ultra-thin(~4.1 nm)carbon-doped Bi_(2)WO_(6) nanosheets were prepared via hydrothermal treatment followed by *** ultra-thin nanosheet structure of the cata-lyst not only provides more active sites but also shortens the diff usion distance of charge carriers,thereby suppressing charge ***,carbon doping could successfully extend the light absorption range of the catalyst and remarkably promote charge separation,thus inhibiting *** a result,the as-prepared Bi_(2)WO_(6) photocatalyst with ultra-thin nanosheet structure and carbon doping exhibits enhanced photocatalytic CO_(2) reduction performance,which is twice that of pristine ultra-thin Bi_(2)WO_(6) *** study highlights the importance of defect engineering in photocatalytic energy conversion and provides new insights for fabricating effi cient photocatalysts.

关键词： Defect engineering Bi_(2)WO_(6)nanosheet Charge separation Light absorption

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Niobium oxide/MXene heterostructure for simultaneous production of ammonia and energy via rechargeable Zn-N2 battery system

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Journal of Energy Chemistry 2025年第4期103卷 448-457页

作者： Xinyu Dai Wei Zhang Ying Sun Zhenyi Du Zhanliang Tao Jingang Wang Wenhui Fang Xuehan Xing Yang Chen Hui Li Hao Zheng Jieshan Qiu Tianyi Ma Institute of Clean Energy Chemistry Key Laboratory for Green Synthesis and Preparative Chemistry of Advanced Materials of Liaoning Province College of ChemistryLiaoning University State Key Laboratory of Clean and Efficient Coal Utilization Taiyuan University of Technology Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center College of Chemistry Nankai University College of Science Liaoning Petrochemical University College of Chemical Engineering State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Centre for Atomaterials and Nanomanufacturing (CAN) School of Science RMIT University ARC Industrial Transformation Research Hub for Intelligent Energy Efficiency in Future Protected Cropping (E2Crop) College of Chemical State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology

Aqueous Zn-N2batteries with unique configuration are of potential for simultaneous N2electro reduction and electricity generation,in which the electrocatalysts are critical for improving the NH3yield and the energy ***,a heterostructure Nb2O5/Nb2CTXwith abundant exposed Nb active sites and tuned electron density has been synthesized by in situ formation and anchoring of Nb2O5nanoparticles on the surface of Nb2CTXMXene,which shows an enhanced N2adsorption/activation *** heterostructure Nb2O5/Nb2CTXwas used as the cathode of Zn-N2battery that can deliver a peak power density of 1.25 mW cm-2in 1.0 M KOH and can continuously produce NH3with a yield of3.62 μg *** NH3formed in the battery system can be easily collected as a net product without circulating the ***,the Nb2O5/Nb2CTXhas a long durability,evidenced by 70 h of operation at-0.4 V *** hydrogen electrode,which is the highest among the MXene-based electrocatalysts reported thus *** work may provide a new methodology based on Zn-N2battery for sustainable and large-scale NH3production with minimal energy consumption.

关键词： NH 3 production Zn-N 2 battery N 2 Electroreduction Nb 2 O 5 /Nb 2 CT X heterostructure

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Copper Ions Removal from Wastewater by Electrocoagulation Using Cement-based Cathode Plates

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Journal of Wuhan University of technology(materials Science) 2023年第2期38卷 387-393页

作者： YOU Song WU Jing WANG Shizhe WANG Wei LI Qiong ZAHNG Ganggang DING Qinjun WANG Luoxin College of Materials Science and Engineering State Key Laboratory of New Textile Materials&Advanced Processing TechnologyWuhan Textile UniversityWuhan430200China Department of Logistics Support Wuhan University of TechnologyWuhan430070China School of Materials Science and Engineering Wuhan University of TechnologyWuhan430070China

The present work uses PEO solution to well disperse carbon fiber and identifies percolation thresholds of carbon fiber and carbon black which are used as conductive *** resultant cathode plates have an average compressive strength of 27.3 MPa and flexural strength of 29.09 MPa,which demonstrate excellent mechanical *** Cu^(2+)removal efficiency was measured at different current densities in EC process with cement-based cathode plate,while the voltage changes were *** results showed that the cement-based cathode plate operated stably and achieved 99.7%removal of 1 L of simulated wastewater with a Cu^(2+)concentration of 200 ppm at a current density of 8 m A/cm^(2)for 1 *** of floc and tested cathode plates,SEM and EDS analyses,and repeatability testing of the tested plates demonstrate the reusability of the plates,proving that cement-based plates can effectively replace metal cathode plates,reduce the cost of EC and improve the applicability of EC devices.

关键词： electrocoagulation cathode plate cement-based conductive materials copper ions repeatability

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Crystallographic micro-mechanism of faceted crack initiation in near-αtitanium alloy Ti6321 under room-temperature fatigue and dwell fatigue loadings

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材料科学技术（英文版） 2025年第2期205卷 109-126页

作者： Wenyuan Zhang Qiaonan Shu Jiangkun Fan Panpan Fan Xiangyi Xue Peng Jiang Minjie Lai Bing Tang Zhiqian Liao Hongchao Kou Jinshan Li State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi'an 710072China National & Local Joint Engineering Research Center for Precision Thermoforming Technology of Advanced Metal Materials Xi'an 710072China Chongqing Innovation Center Northwestern Polytechnical UniversityChongqing 401135China Luoyang Ship Material Research Institute Luoyang 471000China

Crack initiation mechanism of dwell fatigue has always been a key problem in rationalizing the dwell effect,and it is not completely understood *** study conducted stress-controlled low-cycle fatigue and dwell fatigue tests on Ti-6Al-3Nb-2Zr-1Mo alloy with bimodal microstructure to reveal its microstruc-tural characteristics and crack initiation *** study demonstrated that the faceted primaryα nodules located near the specimen surface acted as crack initiation sites during both fatigue and dwell fatigue *** trace analysis revealed that faceted cracking occurred at(0001)basal plane with the maximum Schmid factor value through a special cracking mode referred to as(0001)twist boundary *** criteria of parameters C1 and C2 were proposed based on experimental observation and molecular dynamics simulations,which well identify candidates for(0001)twist boundary crack *** demonstrated that grain pairs combining a moderately high Schmid factor for basal slip and a well-orientated Burgers vector in the out-of-surface plane was the preferable location for surface(0001)twist-boundary crack initiation,and grain pairs combining a high Schmid factor for basal slip and a high normal stress on basal plane are perfect candidates for subsurface *** on this,phenomeno-logical models are proposed to explain the surface(0001)twist-boundary cracking mechanism from the perspective of surface extrusion-intrusion-induced micro-notches.

关键词： Titanium alloy Dwell fatigue Facet Fatigue crack initiation Crystallographic orientation

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金属纳米伴侣界面金属原子对淀粉样蛋白纤维化的调控作用

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Science China materials 2024年第7期67卷 2345-2354页

作者：李虎高冠斌余良翀张子俊张斌邓昱周慕庆雪沈雷孙涛垒 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases School of ChemistryChemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China

合成具有生物分子伴侣功能的金属纳米伴侣作为调节蛋白质构象的候选物具有良好的应用前景.尽管对金属纳米伴侣已有广泛研究,但其分子中界面金属原子对蛋白质构象的调控作用及其机制尚不清楚,这严重阻碍了对高性能金属纳米伴侣的开发.本... 详细信息

合成具有生物分子伴侣功能的金属纳米伴侣作为调节蛋白质构象的候选物具有良好的应用前景.尽管对金属纳米伴侣已有广泛研究,但其分子中界面金属原子对蛋白质构象的调控作用及其机制尚不清楚,这严重阻碍了对高性能金属纳米伴侣的开发.本研究以相同配体巯基丙酸(MPA)修饰的金纳米团簇Au_(25)为模型,通过界面掺杂金属原子(Cu、Cd、Ag)精准制备出了三种单原子掺杂的纳米伴侣,分别是Au_(24)Cu_(1)、Au_(24)Cd_(1)和Au_(24)Ag_(1),系统地研究了Au_(25)、Au_(24)Cu_(1)、Au_(24)Cd_(1)和Au_(24)Ag_(1)四种纳米伴侣对Aβ40折叠与纤维化的调控作用.全原子分子动力学模拟结果表明,界面掺杂金属原子(Cu、Cd、Ag)可通过范德华力和静电相互作用等弱相互作用影响与之接触的Aβ40单体的折叠.等温滴定量热分析结果进一步表明,Au_(24)Cu_(1)与Aβ40的相互作用分别是Au_(24)Cd_(1)、Au_(24)Ag_(1)和Au_(25)的1.76、2.09、16.67倍.这些不同的相互作用会导致金属纳米伴侣对Aβ折叠与纤维化的不同调节作用,四种金属纳米伴侣抑制Aβ折叠与纤维化效率依次为Au_(24)Cu1>Au_(24)Cd_(1)>Au_(24)Ag_(1)>Au_(25).本文提供了对金属纳米团簇界面金属原子如何发挥作用的微观分子见解,并为通过操纵界面金属原子来定制金属纳米伴侣提供了基础研究数据.

关键词： customizing nano-chaperone nano-interface gold-nanoclusters peptide amyloidosis

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Advances in the study of HOR reaction mechanisms under alkaline conditions

Advanced Sensor and Energy Materials

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advanced Sensor and Energy materials 2024年第1期3卷 23-38页

作者： Yuru Liao Shengchen Wang Yifan Zhang Yue Zhang Yun Gao Xueqin Mu Suli Liu Dingsheng Wang Zhihui Dai School of Chemistry and Molecular Engineering Nanjing Tech UniversityNanjing 211816China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology InstitutionWuhan 430070China Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing100084China

Hydrogen energy is an important energy carrier,which is an ideal choice to meet energy demand and reduce harmful gas *** green recycling of hydrogen energy depends on water electrolysis and hydrogen fuel cells,which involves hydrogen oxidation reaction(HOR)and hydrogen evolution reaction(HER).The activity of HER/HOR in alkaline electrolyte,however,exhibits a significantly lower magnitude(2–3 orders)compared to that observed in an acidic medium,which hinders the development of alkaline water electrolysis and alkaline membrane fuel ***,comprehending the characteristics of HOR/HER activity in alkaline electrolytes and elucidating its underlyingmechanismis a prerequisite for the designof advanced *** on this background,this reviewwill briefly summarize the explanations and controversies about the basic HOR mechanism,including bifunctional mechanismand hydrogen binding energy ***,the crucial affecting factors of theHOR kinetics,such as dband center theory,interfacial water recombination,alkali metal cations and electronic effects,are ***,based on the above theories,the design principle,catalytic performance,and latest progress ofHOR electrocatalysts are *** outlook and future research perspectives of advanced catalysts for hydrogen energy recycling are *** reviewis helpful to understand the latest development ofHORmechanismand design cost-effective and high-performance HOR electrocatalysts towards the production of clean renewable energies.

关键词： Hydrogen oxidation reaction(HOR) Electrocatalytic mechanism Hydrogen binding energy theory(HBE) Bifunctional theory

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