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题名: Chemically derived graphene-metal oxide hybrids as electrodes for electrochemical energy storage: pre-graphenization or post-graphenization?
作者: Chen, Cheng-Meng1, 2;  Zhang, Qiang1, 3;  Huang, Jia-Qi3;  Zhang, Wei1;  Zhao, Xiao-Chen1, 6;  Huang, Chun-Hsien1, 5;  Wei, Fei3;  Yang, Yong-Gang2;  Wang, Mao-Zhang2;  Su, Dang Sheng1, 4
刊名: JOURNAL OF MATERIALS CHEMISTRY
发表日期: 2012
DOI: 10.1039/c2jm16042k
卷: 22, 期:28, 页:13947-13955
收录类别: SCI
文章类型: Article
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: The introduction of a secondary phase is an efficient and effective way to improve the electrochemical performance of graphene towards energy storage applications. Two fundamental strategies including pre-graphenization and post-graphenization were widely employed for graphene-based hybrids. However, there is still an open question of which way is better. In this contribution, we investigated the differences in the structure and electrochemical properties of pre- and post-graphenized graphene-SnO2 hybrids. The pre-graphenization is realized by synthesis of thermally reduced graphene and subsequent impregnation of SnO2, while the post-graphenization is realized by introducing a Sn-containing phase onto GO sheets followed by chemical reduction. The pre-graphenization process provides a large amount of pores for ion diffusion, which is of benefit for loading of SnO2, fast ion diffusion for supercapacitors, and higher capacity for Li-ion batteries, but poor stability, while the post-graphenization process offers compact graphene and good interaction between the SnO2 and graphene, which provides stable structure for long term stability for supercapacitor and Li-ion battery use.
关键词[WOS]: PERFORMANCE ANODE MATERIALS ;  LITHIUM ION BATTERIES ;  2-DIMENSIONAL NANOMATERIAL ;  SUPERCAPACITOR ELECTRODES ;  SNO2/GRAPHENE COMPOSITE ;  CARBON MATERIALS ;  MASS-PRODUCTION ;  FABRICATION ;  CAPACITORS ;  GRAPHITE
语种: 英语
WOS记录号: WOS:000305796300016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142897
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Max Planck Gesell, Fritz Haber Inst, Dept Inorgan Chem, D-14195 Berlin, Germany
2.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China
3.Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Green React Engn & Technol, Beijing 100084, Peoples R China
4.Chinese Acad Sci, Catalysis & Mat Div, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
5.Natl Tsing Hua Univ, Dept Biomed Engn & Environm Sci, Hsinchu 30013, Taiwan
6.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Chen, Cheng-Meng,Zhang, Qiang,Huang, Jia-Qi,et al. Chemically derived graphene-metal oxide hybrids as electrodes for electrochemical energy storage: pre-graphenization or post-graphenization?[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(28):13947-13955.
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