典型文献
Oxygen-deficient TiO2 Yolk-shell Spheres for Enhanced Lithium Storage Properties
文献摘要：
Anatase TiO2 is a promising anode material for lithium-ion batteries(LIBs)owing to its low cost and stability.However,the intrinsically kinetic limits seriously hindered its lithium-ion storage capability.Here we present that anatase TiO2 with rich oxygen vacancies can enhance its lithium-ion storage performance.We synthesize anatase TiO2 with well-retained hierarchical structure by annealing the H2Ti5O11·3H2O yolk-shell spheres precursor in nitrogen atmosphere.EPR and XPS data evidence that the oxygen-deficient environment could generate abundant oxygen vacancies in the as-derived anatase TiO2,which leads to improved electron conductivity and reduced charge-transfer resistance.The rich oxygen vacancies and high structural integrity of the hierarchical yolk-shell spheres enable the as-derived anatase TiO2 yolk-shell spheres with a high specific capacity of 280 mAh g-1 at 100 mA g-1 and 71％of capacity retention after 5000 cycles at 2 A g-1.
文献关键词：
中图分类号：
作者姓名：
Zhaoqian Li;Yuqi Peng;Chaofeng Liu;Xianxi Zhang;Xiuling Li;Yang Huang;Yingke Ren;Denghui Ji;Guozhong Cao
作者机构：
Key Laboratory of Photovoltaic and Energy Conservation Materials,CAS,Institute of Solid State Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;Department of Materials Science and Engineering,University of Washington,Seattle WA 98195,USA;Shandong Provincial Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage&Novel Cell Technology,School of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252000,China;College of Physics and Information Engineering,Hebei Advanced Thin Films Laboratory,Hebei Normal University,Shijiazhuang City 050024,P.R.China;College of Science,Hebei University of Science and Technology,Shijiazhuang 050018,China;College of Physics,Mechanical and Electronical College,Shijiazhuang University,Shijiazhuang City 050035,P.R.China
文献出处：
引用格式：
[1]Zhaoqian Li;Yuqi Peng;Chaofeng Liu;Xianxi Zhang;Xiuling Li;Yang Huang;Yingke Ren;Denghui Ji;Guozhong Cao-.Oxygen-deficient TiO2 Yolk-shell Spheres for Enhanced Lithium Storage Properties)[J].能源与环境材料（英文）,2022(01):238-244
A类：
H2Ti5O11
B类：
Oxygen,deficient,TiO2,Yolk,shell,Spheres,Enhanced,Lithium,Storage,Properties,Anatase,promising,anode,material,lithium,batteries,LIBs,owing,low,cost,stability,However,intrinsically,kinetic,limits,seriously,hindered,storage,capability,Here,present,that,anatase,rich,oxygen,vacancies,enhance,performance,We,synthesize,well,retained,hierarchical,structure,by,annealing,3H2O,yolk,spheres,precursor,nitrogen,atmosphere,EPR,XPS,data,evidence,environment,could,generate,abundant,derived,which,leads,improved,electron,conductivity,reduced,charge,transfer,resistance,high,structural,integrity,enable,specific,capacity,mAh,retention,after,cycles
AB值：
0.595977
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
