| Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation | |
| Department | 固体润滑国家重点实验室 |
Ye, Weichun1,2; Chen, Yang2; Zhou, Yaxin2; Fu, Jiajia2; Wu, Weici2; Gao, Daqiang1; Zhou F(周峰)3 ; Wang, Chunming2; Xue, Desheng1
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| 2014 | |
| Source Publication | Electrochimica Acta
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| ISSN | 0013-4686 |
| Volume | 142Pages:18-24 |
| Abstract | A simple and effective approach was demonstrated to synthesize flowerlike Pt nanocrystals on polydopamine (PDA) functionalized reduced oxide graphene (RGO). Inspired by mussels, the PDA/RGO composites were obtained via the reduction of GO nanosheets by dopamine, followed by simultaneous capping by PDA. Then, the synthesis of Pt flowerlike nanocrystals assembled with small elongated nanoparticles on PDA/RGO (Pt(F)-PDA/RGO) was carried out by mixing H2PtCl6 with PDA/RGO in the presence of ascorbic acid under boiling. PDA as a surface-adherent and multifunctional biopolymer played a dual role: dispersing stable RGO into aqueous solution and providing functional groups to bind metal ions and metal nanoparticles. The as-prepared Pt(F)-PDA/RGO catalyst showed considerably improved catalytic activity and stability toward methanol electrooxidation, compared with Pt nanoclusters on PDA/RGO (Pt(C)-PDA/RGO) and Pt nanoparticles on pristine graphene sheets (Pt/RGO). The kinetic characterization of Pt(F)-PDA/RGO was further discussed by cyclic voltammetry. This simple and green approach could be applicable to other metallic nanocrystals as a novel platform in catalysis, fuel cells and biosensors. |
| Keyword | Reduced Graphene Oxide Polydopamine Flowerlike Platinum Nanocrystals Methanol Electrooxidation |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.electacta.2014.06.161 |
| Funding Organization | the Natural Science Foundation of Gansu Province, China (No. 1107RJZA261);the Post-Doctoral Science Foundation of China (No. 2013M542393);the Fundamental Research Funds for the Central Universities (No. lzujbky-2014-69;lzujbky-2012-26;lzujbky-2011-23);the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University (No. LZUMMM2014002) |
| Indexed By | SCI |
| If | 4.504 |
| Language | 英语 |
| Funding Project | 材料表面与界面行为研究组 |
| compositor | 第三作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/18774 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Ye, Weichun; Xue, Desheng |
| Affiliation | 1.Key Laboratory for Magnetism and Magnetic Materials of MOE and Department of Physics, Lanzhou University, Lanzhou 730000, China 2.Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and Department of Chemistry, Lanzhou University, Lanzhou 730000, China 3.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
| Recommended Citation GB/T 7714 | Ye, Weichun,Chen, Yang,Zhou, Yaxin,et al. Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation[J]. Electrochimica Acta,2014,142:18-24. |
| APA | Ye, Weichun.,Chen, Yang.,Zhou, Yaxin.,Fu, Jiajia.,Wu, Weici.,...&Xue, Desheng.(2014).Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation.Electrochimica Acta,142,18-24. |
| MLA | Ye, Weichun,et al."Enhancing the catalytic activity of flowerike Pt nanocrystals using polydopamine functionalized graphene supports for methanol electrooxidation".Electrochimica Acta 142(2014):18-24. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 201418-24.pdf（3043KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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