Chemically derived graphene-metal oxide hybrids as electrodes for electrochemical energy storage: pre-graphenization or post-graphenization?
文献类型：期刊论文
| 作者 | C. M. Chen ; Q. Zhang ; J. Q. Huang ; W. Zhang ; X. C. Zhao ; C. H. Huang ; F. Wei ; Y. G. Yang ; M. Z. Wang ; D. S. Su |
| 刊名 | Journal of Materials Chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 22期号:28页码:13947-13955 |
| 关键词 | performance anode materials lithium ion batteries 2-dimensional nanomaterial supercapacitor electrodes sno2/graphene composite carbon materials mass-production fabrication capacitors graphite |
| ISSN号 | 0959-9428 |
| 中文摘要 | 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. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/59899]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | C. M. Chen,Q. Zhang,J. Q. Huang,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 | C. M. Chen.,Q. Zhang.,J. Q. Huang.,W. Zhang.,X. C. Zhao.,...&D. S. Su.(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 | C. M. Chen,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. |
入库方式： OAI收割
来源：金属研究所
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