Carbon vacancy defect-activated Pt cluster for hydrogen generation
文献类型：期刊论文
| 作者 | Bao, XB; Gong, YT; Chen, YZ; Zhang, H; Wang, Z; Mao, SJ; Xie, L; Jiang, Z; Wang, Y |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2019 |
| 卷号 | 7期号:25页码:15364-15370 |
| ISSN号 | 2050-7488 |
| 关键词 | OXYGEN REDUCTION REACTION SINGLE-ATOM CATALYSIS NANOPARTICLES EVOLUTION NANOTUBES GRAPHENE SUPPORT SITES WATER |
| DOI | 10.1039/c9ta04010b |
| 文献子类 | 期刊论文 |
| 英文摘要 | Providing specific accommodation for supported metal clusters on the defective sites of supports is vital to disclose the function mechanism of the structural defects on metals and the fabrication of excellent catalysts. Here, stable platinum-group metal clusters (Pt, Pd and Au) trapped by structure defects within carbon nanotubes (CNTs) were fabricated with a simple and scalable in situ electrochemical strategy. The Pt clusters demonstrated superior electrocatalytic activity for the hydrogen evolution reaction (HER) with 100-fold increase over the mass activity of the benchmark 20 wt% Pt/C and a much lower overpotential. It was suggested that vacancy defective structures (di- and mono-vacancies) stabilized the Pt cluster from migration and oxidation and optimized the electronic densities of state, hence activating the Pt species for efficient HER with high stability. These results provide new insights into the effects of structural defects on active phases and afford a facile but competitive strategy to synthesize stable and desired catalysts. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31988]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Zhejiang Univ, Inst Catalysis, Adv Mat & Catalysis Grp, Hangzhou 310028, Zhejiang, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao, XB,Gong, YT,Chen, YZ,et al. Carbon vacancy defect-activated Pt cluster for hydrogen generation[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(25):15364-15370. |
| APA | Bao, XB.,Gong, YT.,Chen, YZ.,Zhang, H.,Wang, Z.,...&Wang, Y.(2019).Carbon vacancy defect-activated Pt cluster for hydrogen generation.JOURNAL OF MATERIALS CHEMISTRY A,7(25),15364-15370. |
| MLA | Bao, XB,et al."Carbon vacancy defect-activated Pt cluster for hydrogen generation".JOURNAL OF MATERIALS CHEMISTRY A 7.25(2019):15364-15370. |
入库方式： OAI收割
来源：上海应用物理研究所
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