Changes in the oxidation state of Pt single-atom catalysts upon removal of chloride ligands and their effect for electrochemical reactions

被引：51
作者：
Shin, Sangyong [1 ]
Kim, Jiwhan [1 ]
Park, Subin [2 ]
Kim, Hee-Eun [1 ]
Sung, Yung-Eun [2 ]
Lee, Hyunjoo [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Chem & Biomol Engn, Daejeon 34141, South Korea
[2] Seoul Natl Univ, Sch Chem & Biol Engn, IBS, Ctr Nanoparticle Res, Seoul 08826, South Korea
来源：
CHEMICAL COMMUNICATIONS | 2019年 / 55卷 / 45期
基金：
新加坡国家研究基金会;
关键词：
METAL-SUPPORT INTERACTIONS; HYDROGEN-PEROXIDE; CO OXIDATION; OXYGEN; REDUCTION; PLATINUM; H2O2; ENCAPSULATION; TRENDS; PD;
D O I：
10.1039/c9cc01593k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Single atomic Pt supported on TiC was prepared from chloride Pt precursors, then the chloride ligands were intentionally removed by increasing the reduction temperature. The 0.2 wt% Pt/ TiC catalyst reduced at 300 8C had more reduced Pt single-atoms with fewer chloride ligands and exhibited the highest currents for H2O2 formation in the electrochemical oxygen reduction reaction. Controlling the oxidation state of the single-atoms is very important to maximize the activity of the single-atom catalysts.
引用
收藏
页码：6389 / 6392
页数：4
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