ATOMIC-SCALE

作品数：90被引量：220H指数：7
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相关领域：一般工业技术理学更多>>
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相关机构：上海大学更多>>
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相关基金：国家自然科学基金国家重点基础研究发展计划中国博士后科学基金高等学校学科创新引智计划更多>>
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In situ atomic-scale observation of size-dependent (de) potassiation and reversible phase transformation in tetragonal FeSe anodes被引量：1
《InfoMat》2023年第1期161-171,共11页Ran Cai Lixia Bao Wenqi Zhang Weiwei Xia Chunhao Sun Weikang Dong Xiaoxue Chang Ze Hua Ruiwen Shao Toshio Fukuda Zhefei Sun Haodong Liu Qiaobao Zhang Feng Xu Lixin Dong 
This work was supported by the National Key R&D Program of China(Grant No.2018YFB1304902);the National Natural Science Foundation of China(Grant Nos.12004034,U1813211,22005247,11904372,51502007,52072323,52122211,12174019,and 51972058);the Gen-eral Research Fund of Hong Kong(Project No.11217221);China Postdoctoral Science Foundation Funded Project(Grant No.2021M690386).
Potassium-ion batteries(PIBs)are considered promising alternatives to lithium-ion batteries owing to cost-effective potassium resources and a suitable redox potential of-2.93 V(vs.-3.04 V for Li+/Li).However,the explo...
关键词：elucidated by geometric phase analysis and finite-element analysis. Despite the different intercalation behaviors the formed products of Fe and K 2 Se after full potassiation can be converted back into the original FESE phase upon depotassiation. In particular small-sized nanoflakes exhibit better cycling perfor- mance with well-maintained structural integrity. This article presents the first successful demonstration of ATOMIC-SCALE visualization that can reveal size- dependent potassiation dynamics. Moreover it provides valuable guidelines for optimizing the dimensions of electrode materials for advanced PIBs. KEYWOR DS in situ transmission electron microscopy potassium-ion batteries potassium-ion storage mechanism SIZE-DEPENDENT effects TETRAGONAL FESE 
Expediting redox kinetics of sulfur species by atomic-scale electrocatalysts in lithium–sulfur batteries被引量：32
《InfoMat》2019年第4期533-541,共9页Bo-Quan Li Long Kong Chang-Xin Zhao Qi Jin Xiao Chen Hong-Jie Peng Jin-Lei Qin Jin-Xiu Chen Hong Yuan Qiang Zhang Jia-Qi Huang 
This work was supported by the National Key Research and Development Program(2016YFA0202500);National Natural Science Foundation of China(21776019,21808124,and U1801257);We thank Jin Xie and Meng Zhao for their helpful discussion.
Lithium–sulfur(Li–S)batteries have extremely high theoretical energy density that make them as promising systems toward vast practical applications.Expediting redox kinetics of sulfur species is a decisive task to b...
关键词：atomic-scale electrocatalysts kinetic evolution lithium–sulfur batteries polysulfide electrocatalysis polysulfide intermediates 
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