MOF-Derived Hollow Co9S8 Nanoparticles Embedded in Graphitic Carbon Nanocages with Superior Li-Ion Storage

时间:2018-05-25作者:浏览量:747


标题

MOF-Derived Hollow Co9S8 Nanoparticles Embedded in Graphitic Carbon Nanocages with Superior Li-Ion Storage

作者

作者:Liu, J (Liu, Jun)[1,2 ]; Wu, C (Wu, Chao)[1 ]; Xiao, DD (Xiao, Dongdong)[3,4 ]; Kopold, P (Kopold, Peter)[1 ]; Gu, L (Gu, Lin)[3,4 ]; van Aken, PA (van Aken, Peter A.)[1 ]; Maier, J (Maier, Joachim)[1 ]; Yu, Y (Yu, Yan)[1,5 ]

期刊信息


SMALL


卷:12

期:17

页:2354-2364

DOI:10.1002/smll.201503821

出版年:MAY 4 2016

文献类型:Article

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摘要

Novel electrode materials consisting of hollow cobalt sulfide nanoparticles embedded in graphitic carbon nanocages (HCSP subset of GCC) are facilely synthesized by a top-down route applying room-temperature synthesized Co-based zeolitic imidazolate framework (ZIF-67) as the template. Owing to the good mechanical flexibility and pronounced structure stability of carbon nanocages-encapsulated Co9S8, the as-obtained HCSP subset of GCC exhibit superior Li-ion storage. Working in the voltage of 1.0-3.0 V, they display a very high energy density (707 Wh kg(-1)), superior rate capability (reversible capabilities of 536, 489, 438, 393, 345, and 278 mA h g(-1) at 0.2, 0.5, 1, 2, 5, and 10C, respectively), and stable cycling performance (approximate to 26% capacity loss after long 150 cycles at 1C with a capacity retention of 365 mA h g(-1)). When the work voltage is extended into 0.01-3.0 V, a higher stable capacity of 1600 mA h g(-1) at a current density of 100 mA g(-1) is still achieved.

关键词

KeyWords Plus:RECHARGEABLE LITHIUM BATTERIES; OXYGEN REDUCTION REACTION; COBALT SULFIDE; ELECTROCHEMICAL PROPERTIES; ELECTRODE MATERIALS; ANODE MATERIALS; HIGH-CAPACITY; PERFORMANCE; MICROSPHERES; CHALLENGES

作者信息

作者信息

通讯作者地址:Yu, Y (通讯作者)

显示更多Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany.


地址:

显示更多[ 1 ] Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
显示更多[ 2 ] S China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 3 ] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
      [ 4 ] Collaborat Innovat Ctr Quantum Matter, Beijing 100190, Peoples R China
显示更多[ 5 ] Univ Sci & Technol China, Chinese Acad Sci, Dept Chem & Mat Sci, Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China


电子邮件地址:yanyumse@ustc.edu.cn

出版商

WILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY

类别分类

类别 / 分类

研究方向:Chemistry; Science & Technology - Other Topics; Materials Science; Physics

Web of Science 类别:Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter