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Realizing high-voltage aqueous zinc-ion batteries with expanded electrolyte electrochemical stability window

Chinese Chemical Letters 2023年第2期34卷 129-140页

作者： Buke Wu Yongbiao Mu Zheng Li Ming Li Lin Zeng Tianshou Zhao Shenzhen Key Laboratory of Advanced Energy Storage Southern University of Science and TechnologyShenzhen 518055China Department of Mechanical and Energy Engineering Southern University of Science and TechnologyShenzhen 518055China SUSTech Energy Institute for Carbon Neutrality Southern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China

Aqueous zinc-ion batteries(AZIBs) have aroused significant research interest around the world in the past decade. The use of low-cost aqueous electrolytes and a metallic Zn anode with a suitable redox potential and high energy density make AZIBs a potential alternative to commercial Li-ion batteries in the development of next-generation batteries. However, owing to the narrow electrochemical stability window(ESW) of aqueous electrolytes, the choice of cathode materials is limited, because of which AZIBs exhibit a relatively low operating voltage and energy density. Hence, expanding the ESW of aqueous electrolytes is important for the development of practical AZIBs. This paper systematically reviews the electrolyte engineering strategies being explored to broaden the ESW of AZIBs. An in-depth analysis of high-voltage AZIBs is also presented. We suggest that the realization of high-voltage AZIBs depends on the synergistic development of suitable electrolytes and cathode materials. In addition, the cost associated with their fabrication as well as the use of standardized electrochemical tests should be considered during the design of high-voltage AZIBs.

关键词： High voltage Aqueous zinc ion batteries Electrolytes Cathodes Electrochemical stability window

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Revealing the origin of single-atom W activity in H_(2)O_(2) electrocatalytic production:Charge symmetry-breaking

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Carbon Energy 2024年第10期6卷 289-300页

作者： Changfei Jing Junyang Ding Peipei Jia Mengmeng Jin Lihui Zhou Xijun Liu Jun Luo Sheng Dai Institute for New Energy Materials&Low-Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyXiqingTianjinChina ShenSi Lab Shenzhen Institute for Advanced StudyUniversity of Electronic Science and Technology of ChinaLonghuaShenzhenChina Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular EngineeringFrontiers Science Center for Materiobiology and Dynamic ChemistryInstitute of Fine ChemicalsSchool of Chemistry and Molecular EngineeringEast China University of Science&TechnologyXuhuiShanghaiChina State Key Laboratory of Featured Metal Materials and Life−cycle Safety for Composite Structures Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsMOE Key Laboratory of New Processing Technology for Nonferrous Metals and MaterialsSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanningGuangxiChina

The low-energy electrochemical production of hydrogen peroxide(H_(2)O_(2))has garnered significant attention as a viable alternative to traditional industrial routes,with the goal of achieving carbon *** their H_(2)O_(2) selectivity in the two-electron oxygen reduction reaction(ORR),the coordination environment of tungsten(W)-based materials is *** this study,atomically dispersed W single atoms were immobilized on N-doped carbon substrates by a facile pyrolysis method to obtain a W single-atom catalyst(W-SAC).The coordination environment of an isolated W single atom with a tetra-coordinated porphyrin-like structure in W-SAC was determined by X-ray photoelectron spectroscopy and X-ray absorption spectroscopy ***,the as-prepared W-SAC showed superior two-electron ORR activity in 0.1 M KOH solution,including high onset potential(0.89 V),high H_(2)O_(2) selectivity(82.5%),and excellent *** using differential phase contrast-scanning transmission electron microscopy and density functional theory calculations,it is revealed that the charge symmetry-breaking of W atoms changes the adsorption behavior of the intermediates,leading to enhanced reactivity and selectivity for two-electron *** work broadens the avenue for understanding the charge transfer of W-based electrocatalytic materials and the in-depth reaction mechanism of SACs in two-electron ORR.

关键词： charge symmetry-breaking density functional theory scanning transmission electron microscopy tungsten single-atom catalyst two-electron oxygen reduction reaction

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In-situ selective surface engineering of graphene micro-supercapacitor chips

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Nano Research 2022年第2期15卷 1492-1499页

作者： Yiming Chen Minghao Guo Lin Xu Yuyang Cai Xiaocong Tian Xiaobin Liao Zhaoyang Wang Jiashen Meng Xufeng Hong Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Xianhu Hydrogen ValleyFoshan 528200China Faculty of Materials Science&Chemistry China University of GeosciencesWuhan 430074China

Surface modification of graphene oxide(GO)is a powerful strategy to develop its energy density for electrochemical energy ***,pre-modified GO always exhibits unsatisfactory hydrophilia and its ink-relevant utilization is extremely *** GO ink is widely utilized in fabricating micro energy storage devices via extrusion-based 3D-printing,simultaneously obtaining satisfactory hydrophilia and high energy density still remains a *** this work,an in-situ surface engineering strategy was employed to enhance the performance of GO micro-supercapacitor *** dimensionally printed GO micro-supercapacitor chips were treated with pyrrole monomer to achieve selective and spontaneous anchoring of polypyrrole on the microelectrodes without affecting interspaces between the finger *** interface-reinforced graphene scaffolds were edge-welded and exhibited a considerably improved specific capacitance,from 13.6 to 128.4 mF·cm^(-2).These results are expected to provide a new method for improving the performance of micro-supercapacitors derived from GO inks and further strengthen the practicability of 3D printing techniques in fabricating energy storage devices.

关键词： 3D-printing in-situ modification selective surface engineering edge-welded graphene micro-supercapacitors

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Defect engineering in molybdenum-based electrode materials for energy storage

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eScience 2022年第3期2卷 278-294页

作者： Weixiao Wang Fangyu Xiong Shaohua Zhu Jinghui Chen Jun Xie Qinyou An State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan430070China State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory Foshan528200China

Molybdenum-based materials have stepped into the spotlight as promising electrodes for energy storage systems due to their abundant valence states,low cost,and high theoretical ***,the performance of conventional molybdenum-based electrode materials has been limited by slow diffusion dynamics and deficient *** defect engineering to molybdenum-based electrode materials is a viable method for overcoming these intrinsic limitations to realize superior electrochemical performance for energy ***,we systematically review recent progress in defect engineering for molybdenum-based electrode materials,including vacancy modulation,doping engineering,topochemical substitution,and *** particular,the essential optimization mechanisms of defect engineering in molybdenum-based electrode materials are pre-sented:accelerating ion diffusion,enhancing electron transfer,adjusting potential,and maintaining structural *** also discuss the existing challenges and future objectives for defect engineering in molybdenum-based electrode materials to realize high-energy and high-power energy storage devices.

关键词： Energy storage Molybdenum-based electrode materials Defect engineering

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Fast preparation and thermoelectric performance of AgSTe based materials via plasma activated sintering

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materials Chemistry and Physics 2024年 323卷

作者： Melzi, Bachir Yang, Dongwang Zheng, Yu Zhang, Mingqi Jun, Li Cui, JingJing Jia, Yongzhong Pan, Zhicheng Zhong, Shenglong Yan, Yonggao State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan430070 China

AgSTe based materials have recently been identified as promising thermoelectric materials that have favorable properties at room temperature. They are usually obtained by conventional processes involving melting, annealing, and sintering, which incur significant energy and time expenditures. The present investigation involved the synthesis of Ag20S7Te3 compounds by a fast non-equilibrium methodology, i.e., plasma activated sintering from raw elemental powders. The monoclinic Ag20S7Te3 phase crystal was successfully formed at a temperature of 673 K, accompanied by the presence of a secondary monoclinic phase, Ag2S. The Ag20S7Te3 phase predominated in the monoclinic form, constituting a significant percentage at temperature of 873 K. Furthermore, the thermoelectric figure of merit (zT) of the AgSTe phase at 873 K was determined to be 0.42. The rapid sample synthesis described herein has the potential to significantly reduce the duration required for material synthesis, hence presenting a conspicuous advantage in the context of manufacturing on a wide scale. © 2024 Elsevier B.V.

关键词： Tellurium compounds

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Nitrogen doped porous carbon-based bifunctional oxygen electrocatalyst with controllab.e phosphorus content for zinc-air battery

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Nano Research 2023年第4期16卷 5887-5893页

作者： Shichang Cai Zihan Meng Gaojie Li Yu An Yapeng Cheng Erjun Kan Bo Ouyang Haining Zhang Haolin Tang School of Material Science and Engineering Henan University of TechnologyZhengzhou 450001China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryXianhu Hydrogen ValleyFoshan 528200China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Applied Physics and Institution of Energy and Microstructure Nanjing University of Science and TechnologyNanjing 210094China

The controllab.e construction of non-noble metal based bifunctional catalysts with high activities towards oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is of great significance,but remains a ***,we reported an effective method to synthesize cobalt-nitrogen doped mesoporous carbon-based bifunctional oxygen electrocatalyst with controllab.e phosphorus content(Co-N-P_(X)-MC,X=0.5,1.0,1.5,2.0).The mesoporous carbon substrate endowed the asprepared samples with more exposed active surface(236.50 m^(2)·g^(−1))and the most appropriate doping ratio of phosphorus had been investigated to be 1.5(Co-N-P1.5-MC).For ORR,Co-N-P1.5-MC exhibited excellent catalytic activity with more positive onset potential(1.01 V)and half-wave potential(0.84 V)than the other *** OER,Co-N-P1.5-MC also showed a low overpotential of 415 *** experimental results and density-functional theory(DFT)calculations,the outstanding bifunctional catalytic performance of Co-N-P1.5-MC was due to the synergistic cooperation between the P and N dopants,which could reduce the reaction barriers and was favorable for ORR and ***,the Zn-air battery using Co-N-P1.5-MC as the cathode showed remarkable battery performance with high stability(could operate stably for over 160 h at 10 mA·cm^(−2))and maximum power density(119 mW·cm^(−2)),demonstrating its potential for practical *** work could provide significant enlightenment towards the design and construction of bifunctional oxygen electrocatalyst for next-generation electrochemical devices.

关键词： cobalt-nitrogen doped porous carbon phosphorus doping bifunctional electrocatalyst oxygen reduction reaction(ORR)and oxygen evolution reaction(OER) Zn-air battery

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Application of in-situ characterization techniques in modern aqueous batteries

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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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Swarming Responsive Photonic Nanorobots for Motile-Targeting Microenvironmental Mapping and Mapping-Guided Photothermal Treatment

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Nano-Micro Letters 2023年第9期15卷 205-223页

作者： Luolin Li Zheng Yu Jianfeng Liu Manyi Yang Gongpu Shi Ziqi Feng Wei Luo Huiru Ma Jianguo Guan Fangzhi Mou State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China School of Materials and Microelectronics Wuhan University of TechnologyWuhan 430070People’s Republic of China School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070People’s Republic of China School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070People’s Republic of China

Micro/nanorobots can propel and navigate in many hard-to-reach biological environments,and thus may bring revolutionary changes to biomedical research and ***,current MNRs lack the capability to collectively perceive and report physicochemical changes in unknown *** we propose to develop swarming responsive photonic nanorobots that can map local physicochemical conditions on the fly and further guide localized photothermal *** RPNRs consist of a photonic nanochain of periodically-assembled magnetic Fe_(3)O_(4)nanoparticles encapsulated in a responsive hydrogel shell,and show multiple integrated functions,including energetic magnetically-driven swarming motions,bright stimuli-responsive structural colors,and photothermal ***,they can actively navigate in complex environments utilizing their controllab.e swarming motions,then visualize unknown targets(e.g.,tumor lesion)by collectively mapping out local abnormal physicochemical conditions(e.g.,pH,temperature,or glucose concentra-tion)via their responsive structural colors,and further guide external light irradiation to initiate localized photothermal *** work facilitates the development of intelligent motile nanosensors and versatile multifunctional nanotheranostics for cancer and inflam-matory diseases.

关键词： Micro/nanorobots Collective behaviors Responsive photonic crystals On-the-fly sensing Photothermal therapy

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Effects of silver-doping on properties of Cu(In,Ga)Se_(2) films prepared by Cu In Ga precursors

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Journal of Energy Chemistry 2022年第3期31卷 218-225,I0007页

作者： Chen Wang Daming Zhuang Ming Zhao Yuxian Li Liangzheng Dong Hanpeng Wang Jinquan Wei Qianming Gong School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China Key Lab.for Advanced Materials Processing Technology of Ministry of Education Tsinghua UniversityBeijing 100084China State Key Lab.of New Ceramics and Fine Processing Tsinghua UniversityBeijing 100084China

The AgCuInGa alloy precursors with different Ag concentrations are fabricated by sputtering an Ag target and a CuInGa *** precursors are selenized in the H_(2)Se-containing atmosphere to prepare(Ag,Cu)(In,Ga)Se_(2)(ACIGS)*** beneficial effects of Ag doping are demonstrated and their mechanism is *** is found that Ag doping significantly improves the films *** is believed to be due to the lower melting point of chalcopyrite phase obtained by the Ag *** leads to a higher migration ability of the atoms that in turn promotes grain boundary migration and improves the film *** Ga enrichment at the interface between the absorber and the back electrode is also alleviated during the selenization *** is found that Ag doping within a specific range can passivate the band tail and improve the quality of the ***,carrier recombination is reduced and carrier transport is *** negative effects of excessive Ag are also demonstrated and their origin is *** the atomic size of Ag is different from that of Cu,for the Ag/(Ag+Cu)ratio(AAC)≥0.030,lattice distortion is aggravated,and significant micro-strain *** atomic radius of Ag is close to those of In and Ga,so that the continued increase in AAC will give rise to the Ag;or Ag;*** the structural and compositional defects degrade the quality of the absorbers and the device *** excellent absorber can be obtained at AAC of 0.015.

关键词： CIGS solar cell Ag doping Selenization Sputtering Cu-Ag-In-Ga precursor Defects

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Realizing Highly Reversible Zinc Anode via Controlled-current Pre-deposition

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Energy & Environmental materials 2023年第6期6卷 327-334页

作者： Xinghang Chen Ming Li Qi Li Yuzhu Chen Buke Wu Meng Lin Qinyou An Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyHubeiWuhan 430070China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryXianhu Hydrogen ValleyFoshan 528200China Department of Mechanical and Energy Engineering Southern University of Science and TechnologyShenzhen 518055China SUSTech Energy Institute for Carbon Neutrality Southern University of Science and TechnologyShenzhen China Shenzhen Key Laboratory of Advanced Energy Storage Southern University of Science and TechnologyShenzhen 518055China

Aqueous zinc ion batteries have been considered as the prominent candidate in the next-generation batteries for its low cost,safety and high theoretical ***,formation of zinc dendrites and side reactions at the electrode/electrolyte interface during the zinc plating/stripping process affect the cycling reversibility of the zinc *** of the zinc plating/stripping process and realizing a highly reversible zinc anode is a great ***,we applied a simple and effective approach of controlled-current zinc pre-deposition at copper *** the current density of 40 mA cm^(-2),where the electron/ion transfers are both continuous and balanced,the Zn@CM-40 electrode with the(002)crystal plane orientation and the compactly aligned platelet morphology was successfully *** with the zinc foil,the Zn@CM-40 exhibits greatly enhanced reversibility in the repeated plating/stripping(850 h at 1 mA cm^(-2))for the symmetric battery test.A series of characterization techniques including electrochemical analyses,XRD,SEM and optical microscopy observation,were used to demonstrate the correlation between the structure of pre-deposited zinc layer and the cycling *** COSMOL Multiphysics modeling demonstrates a more uniform electric field distribution in the Zn@CM than the zinc foil due to the aligned platelet ***,the significant improvement is also achieved in a Zn||MnO_(2)full battery with a high capacity-retention(87%vs 47.8%).This study demonstrates that controlled-current electrodeposition represents an important strategy to regulate the crystal plane orientation and the morphology of the pre-deposited zinc layer,hence leading to the highly reversible and dendrite-free zinc anode for high-performance zinc ion batteries.

关键词： controlled-current pre-deposition dendrite-free reversible zinc anode zinc ion battery

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