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Chemically derived graphene-metal oxide hybrids as electrodes for electrochemical energy storage: pre-graphenization or post-graphenization?
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
2012
DOI10.1039/c2jm16042k
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
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
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.
语种英语
WOS记录号WOS:000305796300016
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142897
专题中国科学院大连化学物理研究所
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
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GB/T 7714
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.
APA Chen, Cheng-Meng.,Zhang, Qiang.,Huang, Jia-Qi.,Zhang, Wei.,Zhao, Xiao-Chen.,...&Su, Dang Sheng.(2012).Chemically derived graphene-metal oxide hybrids as electrodes for electrochemical energy storage: pre-graphenization or post-graphenization?.JOURNAL OF MATERIALS CHEMISTRY,22(28),13947-13955.
MLA Chen, Cheng-Meng,et al."Chemically derived graphene-metal oxide hybrids as electrodes for electrochemical energy storage: pre-graphenization or post-graphenization?".JOURNAL OF MATERIALS CHEMISTRY 22.28(2012):13947-13955.
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