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| Hydrothermal self-assembly and supercapacitive behaviors of Co(II) ion-modified graphene aerogels in H2SO4 electrolyte | |
Bao, Qi1,2; Hui, K. N.3; Hui, K. S.4; Wang, Yi2 ; Hong, Xiaoting1; Hui, KN (reprint author), Pusan Natl Univ, Sch Mat Sci & Engn, San 30 Jangjeon Dong, Pusan 609735, South Korea.
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| 2014-08-01 | |
| 发表期刊 | MATERIALS RESEARCH BULLETIN
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| 卷号 | 56页码:92-97 |
| 文章类型 | Article |
| 摘要 | Reduced graphene oxide (r-GO) aerogels decorated with divalent cobalt ions were synthesized via a one-pot hydrothermal self-assembly route. The interaction of Co(II) ions with 3D r-GO aerogels was investigated by spectroscopic techniques, including Raman, attenuated total reflectance infrared, and X-ray photoelectron spectroscopies. The excellent electrochemical properties of the aerogels were confirmed by cyclic voltammetry, galvanostatic charge/discharge tests, and electrochemical impedance spectroscopy in an acid electrolyte (1 M H2SO4). The Co(II) ion-modified r-GO aerogels can be used as high-performance hybrid supercapacitor materials with a specific capacitance of 387.2 Fg(-1) at 1 Ag-1 current density and a good cycling stability without capacity decay over 1000 cycles. The mechanical integrity enhancement of the hybrid r-GO aerogel framework and the improvement in its unique capacitive performance are attributed to the efficient interconnection produced by electro-active Co(II) ions. (C) 2014 Elsevier Ltd. All rights reserved. |
| 关键词 | Sol-gel Chemistry Electrochemical Measurements Energy Storage |
| 学科领域 | Materials Science |
| DOI | 10.1016/j.materresbull.2014.04.026 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000338400000014 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/23879 |
| 专题 | 海洋环境腐蚀与生物污损重点实验室 |
| 通讯作者 | Hui, KN (reprint author), Pusan Natl Univ, Sch Mat Sci & Engn, San 30 Jangjeon Dong, Pusan 609735, South Korea. |
| 作者单位 | 1.City Univ Hong Kong, Dept Syst Engn & Engn Management, Hong Kong, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 3.Pusan Natl Univ, Sch Mat Sci & Engn, Pusan 609735, South Korea 4.Hanyang Univ, Dept Mech Convergence Engn, Seoul 133791, South Korea |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Bao, Qi,Hui, K. N.,Hui, K. S.,et al. Hydrothermal self-assembly and supercapacitive behaviors of Co(II) ion-modified graphene aerogels in H2SO4 electrolyte[J]. MATERIALS RESEARCH BULLETIN,2014,56:92-97. |
| APA | Bao, Qi,Hui, K. N.,Hui, K. S.,Wang, Yi,Hong, Xiaoting,&Hui, KN .(2014).Hydrothermal self-assembly and supercapacitive behaviors of Co(II) ion-modified graphene aerogels in H2SO4 electrolyte.MATERIALS RESEARCH BULLETIN,56,92-97. |
| MLA | Bao, Qi,et al."Hydrothermal self-assembly and supercapacitive behaviors of Co(II) ion-modified graphene aerogels in H2SO4 electrolyte".MATERIALS RESEARCH BULLETIN 56(2014):92-97. |
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