Reductant composition influences the coordination of atomically dispersed Rh on anatase TiO2

被引:38
作者
Asokan, Chithra [1 ]
Ho Viet Thang [2 ,3 ]
Pacchioni, Gianfranco [2 ]
Christopher, Phillip [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA
[2] Univ Milano Bicocca, Dipartimento Sci Mat, Via Cozzi 55, I-20125 Milan, Italy
[3] Univ Da Nang, Univ Sci & Technol, 54 Nguyen Luong Bang, Danang 550000, Vietnam
关键词
SURFACE HYDROXYL-GROUPS; STABLE SINGLE-ATOM; CARBON-MONOXIDE; CO; RHODIUM; CHEMISORPTION; AL2O3; OXIDE; ADSORPTION; REACTIVITY;
D O I
10.1039/d0cy00146e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Atomically dispersed noble metal catalysts have received recent interest, although the coordination of the metal to the support and how this is influenced by pre-treatment have not often been elucidated. We combine CO FTIR-TPD and DFT to distinguish how catalyst reduction via CO or H-2 influence the local metal coordination and molecular desorption processes.
引用
收藏
页码:1597 / 1601
页数:5
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