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Insights on advanced g‐C_(3)N_(4)in energy storage:Applications,challenges,and future

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Carbon Energy 2024年第4期6卷 22-78页

作者： Xiaojie Yang Jian Peng Lingfei Zhao Hang Zhang Jiayang Li Peng Yu Yameng Fan Jiazhao Wang Huakun Liu shixue dou School of Nuclear Technology and Chemistry&Biology Hubei Key Laboratory of Radiation Chemistry and Functional MaterialsHubei University of Science and TechnologyXianningChina Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNorth WollongongNew South WalesAustralia State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanChina Institute of Energy Materials Science University of Shanghai for Science and TechnologyShanghaiChina

Graphitic carbon nitride(g‐C_(3)N_(4))is a highly recognized two‐dimensional semiconductor material known for its exceptional chemical and physical stability,environmental friendliness,and pollution‐free *** remarkable properties have sparked extensive research in the field of energy *** review paper presents the latest advances in the utilization of g‐C_(3)N_(4)in various energy storage technologies,including lithium‐ion batteries,lithium‐sulfur batteries,sodium‐ion batteries,potassium‐ion batteries,and *** of the key strengths of g‐C_(3)N_(4)lies in its simple preparation process along with the ease of optimizing its material *** possesses abundant amino and Lewis basic groups,as well as a high density of nitrogen,enabling efficient charge transfer and electrolyte solution ***,the graphite‐like layered structure and the presence of largeπbonds in g‐C_(3)N_(4)contribute to its versatility in preparing multifunctional materials with different dimensions,element and group doping,and conjugated *** characteristics open up possibilities for expanding its application in energy storage *** article comprehensively reviews the research progress on g‐C_(3)N_(4)in energy storage and highlights its potential for future applications in this *** exploring the advantages and unique features of g‐C_(3)N_(4),this paper provides valuable insights into harnessing the full potential of this material for energy storage applications.

关键词： g‐C_(3)N_(4) lithium‐ion batteries lithium‐sulfur batteries potassium‐ion batteries sodium‐ion batteries supercapacitors

Synergistic coupling among Mg_(2)B_(2)O_(5),polycarbonate and N,Ndimethylformamide enhances the electrochemical performance of PVDF-HFP-based solid electrolyte

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Journal of Energy Chemistry 2024年第7期94卷 158-168页

作者： Yutong Jing Qiang Lv Yujia Chen Bo Wang Bochen Wu Cheng Li Shengbo Yang Zhipeng He Dianlong Wang Huakun Liu shixue dou MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Institute of Energy Material Science University of Shanghai for Science and TechnologyShanghai 200093China Institute for Superconducting&Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongWollongongNSW 2500Australia

Polymer solid electrolytes(SPEs)based on the[solvate-Li+]complex structure have promising prospects in lithium metal batteries(LMBs)due to their unique ion transport ***,the solvation structure may compromise the mechanical performance and safety,hindering practical application of *** this work,a composite solid electrolyte(CSE)is designed through the organic-inorganic syner-gistic interaction among N,N-dimethylformamide(DMF),polycarbonate(PC),and Mg_(2)B_(2)O_(5) in poly(vinylidene fluoride-co-hexafluoropropylene)(PVDF-HFP).Flame-retardant Mg_(2)B_(2)O_(5) nanowires provide non-flammability to the prepared CSEs,and the addition of PC improves the dispersion of Mg_(2)B_(2)O_(5) ***,the organic-inorganic synergistic action of PC plasticizer and Mg_(2)B_(2)O_(5) nanowires pro-motes the dissociation degree of LiTFSI and reduces the crystallinity of PVDF-HFP,enabling rapid Li ion ***,Raman spectroscopy and DFT calculations confirm the coordination between Mg atoms in Mg_(2)B_(2)O_(5) and N atoms in DMF,which exhibits Lewis base-like behavior attacking adjacent C-F and C-H bonds in PVDF-HFP while inducing dehydrofluorination of *** on the syner-gistic coupling of Mg_(2)B_(2)O_(5),PC,and DMF in the PVDF-HFP matrix,the prepared CSE exhibits superior ion conductivity(9.78×10^(-4) s cm^(-1)).The assembled Li symmetric cells cycle stably for 3900 h at a current density of 0.1 mA cm^(-2) without short *** LFP||Li cells assembled with PDL-Mg_(2)B_(2)O_(5)/PC CSEs show excellent rate capability and cycling performance,with a capacity retention of 83.3%after 1000 cycles at 0.5 *** work provides a novel approach for the practical application of organic-inorganic Synergistic CSEs in LMBs.

关键词： Composite solid electrolytes Safe Li metal batteries Synergistic coupling effect Poly(vinylidene fluoride-co-hexafluoropro pylene)

High donor-number and low content electrolyte additive for stabilizing zinc metal anode

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Journal of Energy Chemistry 2024年第8期95卷 626-635,I0014页

作者： Yuxin Gong Ruifan Lin Bo Wang Huaizheng Ren Lei Wang Han Zhang Jianxin Wang Deyu Li Yueping Xiong Dianlong Wang Huakun Liu shixue dou MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) College of ChemistryNankai UniversityTianjin 300071China Institute of Energy Material Science University of Shanghai for Science and TechnologyShanghai 200093China

The aqueous zinc ion batteries(AZIBs)are thought as promising competitors for electrochemical energy storage,though their wide application is curbed by the uncontrollable dendrite growth and gas evolution side ***,to stabilize both zinc anodes and water molecules,we developed a modified electrolyte by adding a trace amount of N,N-diethylformanmide(DEF)into the ZnSO_(4)electrolyte for the first time in zinc ion *** effectiveness of DEF is predicted by the comparison of donor number and its preferential adsorption behavior on the zinc anode is further demonstrated by several spectroscopy characterizations,electrochemical methods,and molecular dynamics *** modified electrolyte with 5%*** content can ensure a stable cycling life longer than 3400 h of Zn‖Zn symmetric cells and an ultra-reversible Zn stripping/plating process with a high coulombic efficiency of 99.7%.The Zn‖VO_(2)full cell maintains a capacity retention of 83.5%and a 104 mA h g^(-1)mass capacity after *** work provides insights into the role of interfacial adsorption behavior and the donor number of additive molecules in designing low-content and effective aqueous electrolytes.

关键词： Aqueous zinc ion batteries Zinc anode Electrolyte additives Donor number Zinc dendrites

Non-precious metal electrocatalysts for two-electron oxygen electrochemistry: Mechanisms, progress, and outlooks

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Journal of Energy Chemistry 2022年第6期31卷 54-69,I0003页

作者： Yuhan Wu Jianhui Sun shixue dou Jingyu Sun School of Environment Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control-Ministry of EducationHenan Normal UniversityXinxiang 453007HenanChina College of Energy Soochow Institute for Energy and Materials InnovationsKey Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006JiangsuChina Institute for Superconducting and Electronic Materials University of WollongongWollongongNSW 2522Australia

Hydrogen peroxide (H_(2)O_(2)) is a valuable chemical for a wide variety of applications. The environmentally friendly production route of the electrochemical reduction of O_(2)to H_(2)O_(2) has become an attractive alternative to the traditional anthraquinone process. The efficiency of electrosynthesis process depends considerably on the availability of cost-effective catalysts with high selectivity, activity, and ***, there are many outstanding issues in the preparation of highly selective catalysts, the exploration of the interface electrolysis environment, and the construction of electrolysis devices, which have led to extensive research efforts. Distinct from the existing few comprehensive review articles on H_(2)O_(2) production by two-electron oxygen reduction, the present review first explains the principle of the oxygen reduction reaction and then highlights recent advances in the regulation and control strategies of different types of catalysts. Key factors of electrode structure and device design are discussed. In addition,we highlight the promising co-production combination of this system with renewable energy or energy storage systems. This review can help introduce the potential of oxygen reduction electrochemical production of high-flux H_(2)O_(2) to the commercial market.

关键词： 2e-ORR(oxygen reduction reaction) H_(2)O_(2) Heteroatom doping Single atom Carbon-based catalyst

Mesocrystal Co3O4 nanoplatelets as high capacity anode materials for Li-ion batteries

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Nano Research 2014年第5期7卷 794-803页

作者： Dawei Su shixue dou Guoxiu Wang Institute for Superconducting & Electronic Materials University of Wollongong Wollongong NSW 2522 Australia Centre for Clean Energy Technology School of Chemistry and Forensic Science University of Technology Sydney Broadway Sydney NSW 2007 Australia

Faceted crystals with exposed highly reactive planes have attracted intensive investigations for applications. Herein, we demonstrate a general synthetic method to prepare mesocrystal Co3O4 with predominantly exposed {111} reactive facets by the in situ thermal decomposition from Co（OH）2 nanoplatelets. The mesocrystal feature was identified by field emission scanning electron microscopy, transmission electron microscopy, selected area electron diffraction, and N2 isotherm analyses. When applied as anode material in lithium-ion batteries, mesocrystal Co3O4 nanoplatelets delivered a high specific capacity and an outstanding high rate performance. The superior electrochemical performance should be ascribed to the predominantly exposed {111} active facets and highly accessible surfaces. This synthetic strategy could be extended to prepare other mesocrystal functional nanomaterials.

关键词： msoporous material faceted crystal anode materiallithium ion battery

Recent progress in thermoelectric materials

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Chinese Science Bulletin 2014年第18期59卷 2073-2091页

作者： Chao Han Zhen Li shixue dou Institute for Superconducting and Electronic Materials Squires WayUniversity of WollongongWollongong 2500NSWAustralia

Direct conversion of heat into electricity through advanced thermoelectric(TE)materials has been one of the most attractive solutions to the severe environmental and energy issues facing *** recent years,great progress has been made in improving their dimensionless figure of merit(ZT),which determines the conversion efficiency of TE *** is related to three‘‘interlocked’’factors—the Seebeck coefficient,electrical conductivity,and thermal *** three factors are interdependent in bulk TE materials,and altering one changes the other *** difficulty in simultaneously optimizing them caused TE research to stagnate,until great reductions in thermal conductivity were both theoretically and experimentally proven in nanomaterials in *** this review,we first introduce some TE fundamentals and then review the most recently improvements in ZT in different kinds of inorganic and organic TE materials,which is followed by an investigation of the outlook for new directions in TE technology.

关键词：热电材料 Seebeck系数直接转换能源问题转换效率纳米材料热导率 TE

Effects of nanostructure on clean energy: big solutions gained from small features

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Science Bulletin 2015年第24期60卷 2083-2090页

作者： Jinyan Xiong Chao Han Zhen Li shixue dou Institute for Superconducting and Electronic Materials Australian Institute for Innovative Materials University of Wollongong School of Radiation Medicine and Radiation Protection Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education InstitutionsSoochow University

The increasing energy consumption and environmental concerns have driven the development of costeffective, high-efficiency clean energy. Advanced functional nanomaterials and relevant nanotechnologies are playing a crucial role and showing promise in resolving some energy issues. In this view, we focus on recent advances of functional nanomaterials in clean energy applications, including solar energy conversion, water splitting, photodegradation, electrochemical energy conversion and storage, and thermoelectric conversion, which have attracted considerable interests in the regime of clean energy.

关键词： nanostructures Photocatalysis Solar energy -Electrochemical energy conversion and storage Thermoelectric conversion

Recent advances in chemical adsorption and catalytic conversion materials for Li–S batteries

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Journal of Energy Chemistry 2020年第3期29卷 144-168页

作者： Xiaodong Hong Rui Wang Yue Liu Jiawei Fu Ji Liang shixue dou College of Materials Science and Engineering Liaoning Technical University47 Zhonghua RoadFuxin 123000LiaoningChina Institute for Superconducting&Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongInnovation CampusSquires WayNorth WollongongNSW 2500Australia

Owing to their low cost,high energy densities,and superior performance compared with that of Li-ion batteries,Li–S batteries have been recognized as very promising next-generation ***,the commercialization of Li–S batteries has been hindered by the insulation of sulfur,significant volume expansion,shuttling of dissolved lithium polysulfides(Li PSs),and more importantly,sluggish conversion of polysulfide *** overcome these problems,a state-of-the-art strategy is to use sulfur host materials that feature chemical adsorption and electrocatalytic capabilities for Li PS *** this review,we comprehensively illustrate the latest progress on the rational design and controllable fabrication of materials with chemical adsorbing and binding capabilities for Li PSs and electrocatalytic activities that allow them to accelerate the conversion of Li PSs for Li–S ***,the current essential challenges encountered when designing these materials are summarized,and possible solutions are *** hope that this review could provide some strategies and theoretical guidance for developing novel chemical anchoring and electrocatalytic materials for high-performance Li–S batteries.

关键词： Chemical adsorption Electrocatalysis Li–S batteries Lithium polysulfides Shuttle effect

Research Progress of Electromagnetic Properties of MgB2 Induced by Carbon-Containing Materials Addition and Process Techniques

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Acta Metallurgica Sinica(English Letters) 2020年第4期33卷 471-489页

作者： Jiancheng Li Haobo Liu Ying Li Chuanbing Cai shixue dou Wenxian Li Institute of Materials Laboratory for MicrostructuresSchool of Materials Science and EngineeringShanghai University149 Yanchang RoadShanghai 200072China Institute for Sustainable Energy Shanghai University99 Shangda RoadShanghai 200444China Institute for Superconducting and Electronic Materials University of WollongongWollongongNSW 2522Australia Shanghai Key Laboratory of High Temperature Superconductors 99 Shangda RoadShanghai 200444China

For the high transition temperature(Tc) and low cost taking both raw materials and fabrication process into account,MgB2 has been a competitive candidate to replace the conventional NiTi superconductor for high-temperature application in fault current limiters,transformers,motors,magnetic resonance imaging,adiabatic demagnetization refrigerators,generators,*** carbon-containing materials addition induced high critical current density(Jc) is reviewed based on their influences on the upper critical field(Hc2),flux pinning force,and *** doping effects were compared in the overview focusing on SiC,organic dopants,and graphene-related *** doping is featured for the high-field critical current density,which is caused by the increased Hc2 attributed to the substitution of carbon on boron site and the strong flux pinning force offered by the nanosized secondary phases in the MgB2 *** dopants have the advantage over SiC dopant for their relatively homogeneous distribution in the MgB2 matrix based on wet mixing of the organics and the raw boron *** doping level of two-dimensional materials can improve the superconducting properties in all measured fields because of the combined advantages of carbon substitution effect and grain ***2 fabricated with carbon-encapsulated boron also introduces strong flux pinning centers in MgB2,which show weak destruction of the connectivity of the MgB2 grains as reflected by the low-magnetic-supercurrent ***-pressure treatment and diffusion method can fabricate highdensity MgB2 superconductors with better connectivity and increase the Jc compared with the in situ and ex situ methods.

关键词： Critical current density(J_c) Flux pinning Doping 2D flux pinning centers