Abstract
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. © 2011 American Chemical Society.
| Original language | English |
|---|---|
| Pages (from-to) | 3851-3856 |
| Journal | The Journal of Physical Chemistry C |
| Volume | 116 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 9 Feb 2012 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Funding
This work is supported by the academic research fund AcRF tier 2 (MOE2009-T2-2-024), Ministry of Education, Singapore, and competitive research program (2009 NRF-CRP 001-032), National Research Foundation, Singapore.
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