CO adsorption behavior on decorated Pt@Au nanoelectrocatalysts : a combined experimental and DFT theoretical calculation study

CO adsorption behavior on decorated Pt@Au nanoelectrocatalysts : a combined experimental and DFT theoretical calculation study

CO stripping experiments were carried out on a series of submonolayer decorated Pt@Au/C electrocatalysts with different Pt surface coverages which were synthesized by the Cu underpotential deposition (UPD)-Pt redox replacement technique. Combined with density functional theory calculations, the corr...

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Bibliographic Details
Main Authors: Yu, Yaolun, Lim, Kok Hwa, Wang, Jing-Yuan, Wang, Xin
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2013
Subjects:
DRNTU::Science::Chemistry::Physical chemistry::Catalysis
Online Access:https://hdl.handle.net/10356/98872
http://hdl.handle.net/10220/17217
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Institution: Nanyang Technological University
Language: English
Description
Summary:CO stripping experiments were carried out on a series of submonolayer decorated Pt@Au/C electrocatalysts with different Pt surface coverages which were synthesized by the Cu underpotential deposition (UPD)-Pt redox replacement technique. Combined with density functional theory calculations, the correlation between the CO adsorption strength and surface morphology of the catalyst is well illustrated. Results showed that whether the surface Pt atom could form a PtPt surface ensemble with another neighboring Pt atom is critical, which determines CO adsorption and oxidation behaviors on the electrocatalyst.

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