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10篇 您的检索式:作者名="Xianyou Luo"
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1Renewable biomass-derived carbons for electrochemical capacitor applications显示文摘Biomass is rich,renewable,sustainable,and green resources,thereby excellent raw material for the fabrication of carbon materials.The diversity in structure and morphology of biomass are relevant in obtaining carbon materials with dif-ferent structures and performances.The inherent ordered porous structure of biomass also benefits the activation process to yield porous carbons with ultra-high specific surface area and pore volume.Besides,obtained biomass-derived carbons(BDCs)are hard carbon with porous morphology,stable structure,supe-rior hardness/strength,and good cycling performances when used in electro-chemical capacitors(ECs).The inherent N,S,P,and O elements in biomass yield naturally self-doped N,S,P,and O BDCs with unique intrinsic structures.In this paper,the synthesis approaches and applications of BDCs in ECs are reviewed.It shows that BDCs electrochemical performances are highly determined by their pore structures,specific surface areas,heteroatoms doping,graphitization degree,defects,and morphologies.The electrochemical performances of BDCs can further be improved by compositing with other materials,such as graphene,carbon nanofibers/nanotubes,transition metal oxides or hydroxides,and con-ducting polymers.The future challenges and outlooks of BDCs are also provided.Xianyou Luo Shaorui Chen Tianzhao Hu Yong Chen Feng Li 2021SusMat2021,1,2:3
2Defect Engineering of Carbons for Energy Conversion and Storage Applications显示文摘Sustainable energy conversion and storage technologies are a vital prerequisite for neutral future carbon.To this end,carbon materials with attractive features,such as tunable pore architecture,good electrical conductivity,outstanding physicochemical stability,abundant resource,and low cost,have used as promising electrode materials for energy conversion and storage.Defect engineering could modulate the structures of carbon materials,thereby affecting their electronic properties.The presence of defects on carbons may lead to asymmetric charge distribution,change in geometrical configuration,and distortion of the electronic structure that may result in unexpected electrochemical performances.In this review,recent advances in defects of carbons used for energy conversion and storage were examined in terms of types,regulation strategies,and fine characterization means of defects.The applications of such carbons in supercapacitors,rechargeable batteries,and electrocatalysis were also discussed.The perspectives toward the development of defect engineering carbons were proposed.In all,novel insights related to improvement in high-performance carbon materials for future energy conversion and storage applications were provided.Xianyou Luo Heng Zheng Wende Lai Ping Yuan Shengwei Li De Li Yong Chen 2023Energy & Environmental Materials2023,6,3:2
3查看详情显示文摘Luo Xufang Wang Xianyou Liao Li 0,,01:1
4Flower-like ZnO modified with BiOI nanoparticles as adsorption/catalytic bifunctional hosts for lithium–sulfur batteries显示文摘Due to the high specific capacity and energy density, lithium–sulfur battery is regarded as a potential energy storage conversion system. However, the serious shuttle effect and the sluggish electrochemical reaction kinetics impede the practical use of lithium–sulfur battery. In the interests of breaking through the above knotty problems, herein we propose to use the polar flower-like Zn O modified by Bi OI nanoparticles as bifunctional host with catalytic and adsorption ability for polysulfides in lithium–sulfur battery.It can be found that this adsorption/catalytic host integrates the functions of adsorption and mutual catalytic conversion of polysulfides, in which the polar flower-like Zn O can effectively capture the polysulfides through strong polar-polar interaction, simultaneously the BiOI nanoparticles can accelerate the mutual conversion of polysulfides to Li2 S through reducing the activation energy and conversion energy barrier required for the electrochemical reaction. As a result, under a sulfur loading of 2.5 mg cm^(-2), the lithium–sulfur battery with Zn O/Bi OI/CNT/S as cathode reveals a considerable initial specific capacity of1267 mAh g^(-1) at a current density of 0.1 C. Even the current density increased to 1 C, the capacity can reach as 873.4 mAh g^(-1), together with a good capacity retention of 67.1% after 400 cycles. Therefore,after systematically study the positive effects of the flower-like ZnO modified by catalytic BiOI nanoparticles on the adsorption and catalytic conversion of polysulfides, this work provides a new idea for the development and application of high-performance lithium–sulfur batteries.Peng Zeng Hao Yu Manfang Chen Wensheng Xiao Yongfang Li Hong Liu Jing Luo Jiao Peng Dingsheng Shao Ziyi Zhou Zhigao Luo Ying Wang Baobao Chang Xianyou Wang 2020Journal of Energy Chemistry2020,29,12:1
5Synthesis and characterization of high tap-density layered Li O2 cathode material via hydroxide co-precipitation显示文摘Xufang Luo Xianyou Wang Li Liao 2006Journal of Power Sources2006,158,1:1
6Stud- ies of the performance of nanostructural multiphase nickel hydroxide 显示文摘Wang Xianyou Luo Hean Parkhutik P V 2003J Power Sources2003,115,1:1
7Synthesis and electrochemical properties of layered Li[Ni 0.333 Co 0.333 Mn 0.293 Al 0.04 ]O 2? z F z cathode materials prepared by the sol–gel method显示文摘Li Liao Xianyou Wang Xufang Luo Ximing Wang Sergio Gamboa P.J. Sebastian 2006Journal of Power Sources2006,,1:1
8显示文摘Luo Xu{ang Wang Xianyou Li Liao 2006J Power Sources2006,158,1:1
9Effects of synthesis conditions on the structural and electrochemical properties of layered Li O2 cathode material via the hydroxide co-precipitation method LIB SCITECH显示文摘Xufang Luo Xianyou Wang Li Liao 2006J Power Sources2006,161,:1
10Rational architecture design of yolk/double-shells Si-based anode material with double buffering carbon layers for high performance lithium-ion battery显示文摘Among the many strategies to fabricate the silicon/carbon composite,yolk/double-shells structure can be regarded as an effective strategy to overcome the intrinsic defects of Si-based anode materials for Li-ion batteries(LIBs).Hereon,a facile and inexpensive technology to prepare silicon/carbon composite with yolk/double-shells structure is proposed,in which the double buffering carbon shells are fabricated.The silicon/carbon nanoparticles with core-shell structure are encapsulated by SiO_(2)and external carbon layer,and it shows the yolk/double-shells structure via etching the SiO_(2)sacrificial layer.The multiply shells structure not only significantly improves the electrical conductivity of composite,but also effectively prevents the exposure of Si particles from the electrolyte composition.Meanwhile,the yolk/double-shells structure can provide enough space to accommodate the volume change of the electrode during charge/discharge process and avoid the pulverization of Si particles.Moreover,the as-prepared YDS-Si/C shows excellent performance as anode of LIBs,the reversible capacity is as high as 1066 mA h g^(-1) at the current density of 0.5 A g^(-1) after 200 cycles.At the same time,the YDS-Si/C has high capacity retention and good cyclic stability.Therefore,the unique architecture design of yolk/double-shells for Si/C composite provides an instructive exploration for the development of next generation anode materials of LIBs with high electrochemical performances and structural stability.Zhenyu Wu Jing Luo Jiao Peng Hong Liu Baobao Chang Xianyou Wang 2021Green Energy & Environment2021,6,4:0
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