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Nitrogen-doped yolk-shell-structured CoSe/C dodecahedra for high-performance sodium ion batteries

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WOS被引频次:75
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成果类型:
期刊论文
作者:
Zhang, Yifang;Pan, Anqiang*;Ding, Lin;Zhou, Zilong;Wang, Yaping;Niu, Shaoyu;Liang, Shuquan*梁叔全);Cao, Guozhong*
通讯作者:
Pan, Anqiang;Liang, Shuquan;Cao, Guozhong
作者机构:
[Liang, Shuquan; Pan, AQ; Pan, Anqiang; Niu, Shaoyu; Wang, Yaping; Zhang, Yifang; Ding, Lin] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China.
[Zhou, Zilong] Cent S Univ, Sch Resources & Safety Engn, Changsha 410083, Hunan, Peoples R China.
[Cao, Guozhong] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA.
通讯机构:
[Pan, AQ; Liang, SQ] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China.
[Cao, Guozhong] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA.
语种:
英文
关键词:
Anode;Cobalt selenide;Metal-organic frameworks;Nitrogen-doped carbon;Sodium ion batteries
期刊:
ACS Applied Materials and Interfaces
ISSN:
1944-8244
年:
2017
卷:
9
期:
4
页码:
3624-3633
文献类别:
WOS:Article;EI:Journal article (JA)
所属学科:
ESI学科类别:材料科学;WOS学科类别:Materials Science, Multidisciplinary;Nanoscience & Nanotechnology
入藏号:
WOS:000393355900043;EI:20170603337292;PMID:28075123
基金类别:
National Natural Science Foundation of China [51302323, 51374255, 51322403]; Program for New Century Excellent Talents in University [NCET-13-0594]; Research Fund for the Doctoral Program of Higher Education of China [201301621200]; Natural Science Foundation of Hunan Province, China [14JJ3018]; Fundamental Research Funds for the Central Universities of Central South University [2016zzts026]
机构署名:
本校为第一且通讯机构
院系归属:
材料科学与工程学院
资源与安全工程学院
摘要:
In this work, nitrogen-doped, yolk-shell-structured CoSe/C mesoporous dodecahedra are successfully prepared by using cobalt-based metal-organic frameworks (ZIF-67) as sacrificial templates. The CoSe nanoparticles are in situ produced by reacting the cobalt species in the metal-organic frameworks with selenium (Se) powder, and the organic species are simultaneously converted into nitrogen-doped carbon material in an inert atmosphere at temperatures between 700 and 900 °C for 4 h. For the composite synthesized at 800 °C, the carbon framework has a relatively higher extent of graphitization, with high nitrogen content (17.65%). Furthermore, the CoSe nanoparticles, with a size of around 15 nm, are coherently confined in the mesoporous carbon framework. When evaluated as novel anode materials for sodium ion batteries, the CoSe/C composites exhibit high capacity and superior rate capability. The composite electrode delivers the specific capacities of 597.2 and 361.9 mA h g-1 at 0.2 and 16 A g-1, respectively. ©2017 American Chemical Society.
参考文献:
Banerjee A, 2014, ACS APPL MATER INTER, V6, P18844, DOI 10.1021/am504333z
Campos CEM, 2002, PHYSICA B, V324, P409, DOI 10.1016/S0921-4526(02)01461-8
Chen LL, 2013, NANOTECHNOLOGY, V24, DOI 10.1088/0957-4484/24/4/045602
Chen T, 2016, NANO ENERGY, V20, P305, DOI 10.1016/j.nanoen.2015.12.024
Du YC, 2015, J MATER CHEM A, V3, P6787, DOI 10.1039/c5ta00621j

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