Highly Concentrated Aqueous Dispersions of Graphene Exfoliated by Sodium Taurodeoxycholate: Dispersion Behavior and Potential Application as a Catalyst Support for the Oxygen-Reduction Reaction
文献类型：期刊论文
| 作者 | Sun, Zhenyu1,2; Masa, Justus; Liu, Zhimin1; Schuhmann, Wolfgang; Muhler, Martin2 |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2012-05-29 |
| 卷号 | 18期号:22页码:6972-6978 |
| 关键词 | Electrochemistry Exfoliation Graphene Oxygen Surfactants |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.201103253 |
| 英文摘要 | A high-yielding exfoliation of graphene at high concentrations in aqueous solutions is critical for both fundamental study and future applications. Herein, we demonstrate the formation of stable aqueous dispersions of pristine graphene by using the surfactant sodium taurodeoxycholate under tip sonication at concentrations of up to 7.1 mg?mL-1. TEM showed that about 8?% of the graphene flakes consisted of monolayers and 82?% of the flakes consisted of less than five layers. The dispersions were stable regardless of freezing (-20?degrees C) or heat treatment (80?degrees C) for 24 h. The concentration could be significantly improved to about 12 mg?mL-1 by vacuum-evaporation of the dispersions at ambient temperature. The as-prepared graphene dispersions were readily cast into conductive films and were also processed to prepare Pt/graphene nanocomposites that were used as highly active electrocatalysts for the oxygen-reduction reaction. |
| 语种 | 英语 |
| WOS记录号 | WOS:000304347600033 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47983]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Zhimin |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 2.Ruhr Univ Bochum, Lab Ind Chem, D-44780 Bochum, Germany |
| 推荐引用方式 GB/T 7714 | Sun, Zhenyu,Masa, Justus,Liu, Zhimin,et al. Highly Concentrated Aqueous Dispersions of Graphene Exfoliated by Sodium Taurodeoxycholate: Dispersion Behavior and Potential Application as a Catalyst Support for the Oxygen-Reduction Reaction[J]. CHEMISTRY-A EUROPEAN JOURNAL,2012,18(22):6972-6978. |
| APA | Sun, Zhenyu,Masa, Justus,Liu, Zhimin,Schuhmann, Wolfgang,&Muhler, Martin.(2012).Highly Concentrated Aqueous Dispersions of Graphene Exfoliated by Sodium Taurodeoxycholate: Dispersion Behavior and Potential Application as a Catalyst Support for the Oxygen-Reduction Reaction.CHEMISTRY-A EUROPEAN JOURNAL,18(22),6972-6978. |
| MLA | Sun, Zhenyu,et al."Highly Concentrated Aqueous Dispersions of Graphene Exfoliated by Sodium Taurodeoxycholate: Dispersion Behavior and Potential Application as a Catalyst Support for the Oxygen-Reduction Reaction".CHEMISTRY-A EUROPEAN JOURNAL 18.22(2012):6972-6978. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。