Critical Size Range of Sub-Nanometer Au Clusters for the Catalytic Activity in the Hydrogen Oxidation Reaction
| Autor: | David Buceta, Miomir B. Vukmirovic, M. A. López-Quintela, M. C. Blanco |
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| Rok vydání: | 2014 |
| Předmět: |
Hydrogen
Renewable Energy Sustainability and the Environment Chemistry Inorganic chemistry chemistry.chemical_element Condensed Matter Physics Electrochemistry Electrocatalyst Antibonding molecular orbital Redox Surfaces Coatings and Films Electronic Optical and Magnetic Materials Catalysis Crystallography Materials Chemistry Cluster (physics) HOMO/LUMO |
| Zdroj: | Journal of The Electrochemical Society. 161:D3113-D3115 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/2.016407jes |
| Popis: | Au clusters (25 atoms) are up to 180 times more active for the hydrogen oxidation reaction (HOR) than bulk Au. They were created from catalytically inactive Au clusters (2-5 atoms) by electrochemical activation in the presence of Au ions. The HOR activity depends on the cluster's size and it is related to the fact that the position of the LUMO is below the redox potential for the HOR, while HOMO is below the H 1s-Au d antibonding resonance. © 2014 The Electrochemical Society. |
| Databáze: | OpenAIRE |
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