期刊
GREEN CHEMISTRY
卷 22, 期 4, 页码 1269-1274出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9gc03477c
关键词
-
资金
- National Natural Science Foundation of China [51672194, 51702241]
- Program for Innovative Teams of Outstanding Young and Middle-aged Researchers in the Higher Education Institutions of Hubei Province [T201602]
- Key Program of Natural Science Foundation of Hubei Province, China [2017CFA004]
- Special Project of Central Government for Local Science and Technology Development of Hubei Province [2019ZYYD076]
- Doctoral Fund Project of Henan Polytechnic University [B2019-40]
- Open Foundation of the State Key Laboratory of Refractories and Metallurgy [G201904]
Developing highly active single-atom catalysts is one of the most significant issues for future renewable energy technologies. Here we present a facile but effective and efficient strategy for synthesizing colloidal Co single-atom catalysts with excellent catalytic activity using a copolymer, poly(isobutylene-alt-maleic anhydride) (ISOBAM-104), as a stabilizing agent. The catalytic activity of the as-prepared colloidal single-atom catalyst for hydrogen generation from hydrolysis of KBH4 in an alkaline solution was as high at about 14 300 mL-H-2 min(-1) g-Co-1, which was even higher than that of its Pt, Pd or Rh counterpart. Such a high catalytic activity of the colloidal catalyst was attributable to the in situ formed and well-stabilized Co single-atoms whose existence was confirmed by aberration-corrected high-angle annular dark-field scanning transmission electron microscopy. Moreover, quantum chemical calculations reveal that ISOBAM-104 has a higher binding energy with the Co catalyst than with the well-known conventional protective agents, including poly(N-vinyl-2-pyrrolidone), starch, carboxymethylcellulose sodium, polyvinyl alcohol, sodium polyacrylate and polyethylene glycol. In addition, the use of as-prepared Co catalysts resulted in a much lowered barrier for the dissociation reaction of BH4- than in the cases of using Pt, Pd and Rh counterpart catalysts.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据