In:
Angewandte Chemie, Wiley, Vol. 130, No. 30 ( 2018-07-20), p. 9495-9500
Abstract:
Oxygen activation plays a crucial role in many important chemical reactions such as oxidation of organic compounds and oxygen reduction. For developing highly active materials for oxygen activation, herein, we report an atomically dispersed Pt on WO 3 nanoplates stabilized by in situ formed amorphous H 2 WO 4 out‐layer and the mechanism for activating molecular oxygen. Experimental and theoretical studies demonstrate that the isolated Pt atoms coordinated with oxygen atoms from [WO 6 ] and water of H 2 WO 4 , consequently leading to optimized surface electronic configuration and strong metal–support interaction (SMSI). In exemplified reactions of butanone oxidation sensing and oxygen reduction, the atomic Pt/WO 3 hybrid exhibits superior activity than those of Pt nanoclusters/WO 3 and bare WO 3 as well as enhanced long‐term durability. This work will provide insight into the origin of activity and stability for atomically dispersed materials, thus promoting the development of highly efficient and durable single atom‐based catalysts.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v130.30
DOI:
10.1002/ange.201804319
Language:
English
Publisher:
Wiley
Publication Date:
2018
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