In:
Angewandte Chemie, Wiley, Vol. 128, No. 33 ( 2016-08-08), p. 9700-9704
Abstract:
As the electron transfer to CO 2 is a critical step in the activation of CO 2 , it is of significant importance to engineer the electronic properties of CO 2 hydrogenation catalysts to enhance their activity. Herein, we prepared Pt 3 Co nanocrystals with improved catalytic performance towards CO 2 hydrogenation to methanol. Pt 3 Co octapods, Pt 3 Co nanocubes, Pt octapods, and Pt nanocubes were tested, and the Pt 3 Co octapods achieved the best catalytic activity. Both the presence of multiple sharp tips and charge transfer between Pt and Co enabled the accumulation of negative charges on the Pt atoms in the vertices of the Pt 3 Co octapods. Moreover, infrared reflection absorption spectroscopy confirmed that the high negative charge density at the Pt atoms in the vertices of the Pt 3 Co octapods promotes the activation of CO 2 and accordingly enhances the catalytic activity.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v128.33
DOI:
10.1002/ange.201602512
Language:
English
Publisher:
Wiley
Publication Date:
2016
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505868-5
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506609-8
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514305-6
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505872-7
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1479266-7
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505867-3
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506259-7
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