Controlled synthesis of high metal-loading, Pt-based electrocatalysts with enhanced activity and durability toward oxygen reduction reaction
文献类型：期刊论文
| 作者 | Li, Shushuang1; Liu, Huiyuan1; Wang, Ying1,2; Xu, Wei1,2; Li, Jia1,2; Liu, Yuan1; Guo, Xinwen2; Song, Yujiang1 |
| 刊名 | rsc advances
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:12页码:8787-8792 |
| 英文摘要 | high metal-loading pt/c electrocatalysts are much sought after for the fabrication of thin-layered membrane electrode assemblies (mea) suitable for mass transport and balance control of water and heat. however, such electrocatalysts are still limited to commercial pt/c, comprised of carbon-supported, 2-5 nm pt particles without size and size uniformity control, causing poor activity and durability toward oxygen reduction reaction (orr). herein, we report the controlled synthesis of 59.9 wt% pt/c by using metallic ion-containing reversed micelles adsorbed on carbon. combined with a simple surfactant removal method of washing with water, this unique confining approach enables easy control over the size and size uniformity of the resultant pt/c, leading to significantly improved activity and durability for orr compared with commercial 60 wt% pt/c. the orr activity enhancement arises from a smaller average size of pt nanoparticles in combination with a narrower size distribution, with more pt nanoparticles falling in an optimal size range of 2-4 nm with the highest orr activity. the narrower size distribution of our pt/c also makes the pt nanoparticles resistant to the dissolution-redeposition ostwald ripening process, in which small pt nanoparticles gradually shrink until they disappear, while large ones become bigger and bigger. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | fuel-cell applications ; platinum ; carbon ; nanoparticles ; electrooxidation ; nanodendrites ; morphology ; catalysts ; surfaces ; alloys |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000347721300031 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146008]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Labs Clean Energy DNL, Dalian 116023, Peoples R China 2.Dalian Univ Technol, Div Chem Environm & Biol Sci & Technol, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shushuang,Liu, Huiyuan,Wang, Ying,et al. Controlled synthesis of high metal-loading, Pt-based electrocatalysts with enhanced activity and durability toward oxygen reduction reaction[J]. rsc advances,2015,5(12):8787-8792. |
| APA | Li, Shushuang.,Liu, Huiyuan.,Wang, Ying.,Xu, Wei.,Li, Jia.,...&Song, Yujiang.(2015).Controlled synthesis of high metal-loading, Pt-based electrocatalysts with enhanced activity and durability toward oxygen reduction reaction.rsc advances,5(12),8787-8792. |
| MLA | Li, Shushuang,et al."Controlled synthesis of high metal-loading, Pt-based electrocatalysts with enhanced activity and durability toward oxygen reduction reaction".rsc advances 5.12(2015):8787-8792. |
入库方式： OAI收割
来源：大连化学物理研究所
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