期刊
CURRENT OPINION IN ELECTROCHEMISTRY
卷 26, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.coelec.2020.100666
关键词
Pt single crystals; Anions; Neutral molecules; Admetals; Electrocatalysis
资金
- FAPESP [2018/06677-6, 2018/10292-2]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior -Brasil (CAPES) [001]
- MCINN (FEDER) (Spain) [PID2019-105653 GB-100]
The use of single crystal electrodes as model catalysts is widely applied for studying reaction mechanisms. Changes in the surface structure and electronic properties affect adsorption energy, thus impacting catalytic activity. The influence of adsorbed species depends on surface structure, species nature, and the studied reaction.
The use of single crystal electrodes as model catalysts has been widely applied for the study of several reactions. The known structure of the surface provides a system with controlled electronic properties that helps in the understanding of the mechanism of reactions. In this model system, any modification, including the adsorption of anions, organic molecules or foreign atoms, generate changes in the electronic properties of the surface and, thus, in the adsorption energy of the species involved in the studied reaction. The adsorbate can hinder the surface and diminish the activity or prevent the oxidation of the surface and improve the catalysis. The changes in electronic properties can modify the adsorption energy and enhance or worsen the catalytic activity. The effect of any adsorbed species will depend on the structure of the surface, the nature of the species and the studied reaction.
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