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Electrochemical and density functional studies of the catalytic ethylene oxidation on nanostructured Au electrodes

SYSNO ASEP	0349702
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Electrochemical and density functional studies of the catalytic ethylene oxidation on nanostructured Au electrodes
Author(s)	Šebera, Jakub (UFCH-W)_{ORCID, RID} Hoffmannová, Hana (UFCH-W)_RID Krtil, Petr (UFCH-W)_{RID, ORCID} Samec, Zdeněk (UFCH-W)_{RID, ORCID} Záliš, Stanislav (UFCH-W)_{RID, ORCID}
Source Title	Catalysis Today. - : Elsevier - ISSN 0920-5861 Roč. 158, 1-2 (2010), s. 29-34
Number of pages	6 s.
Language	eng - English
Country	NL - Netherlands
Keywords	electrocatalysis ; ethylene oxidation ; DFT
Subject RIV	CG - Electrochemistry
R&D Projects	KAN100400702 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000284581400005
DOI	10.1016/j.cattod.2010.05.025
Annotation	Electrocatalytic oxidation of ethylene on gold was investigated by means of differential electrochemical mass spectroscopy (DEMS), quartz crystal microbalance (QCM) and DFT calculations. The product analysis indicates a selectivity of the polycrystalline gold towards formation of acetaldehyde. The oxidation process on fresh surface prepared by surface gold oxide reduction, on the other hand, forms mainly carbon dioxide. The oxidation process encompasses metal dissolution. DFT based analysis of the ethylene oxidation on Au clusters was employed to interpret the experimental data. DFT calculations support experimental findings and indicate possible reaction mechanisms of catalytic reactions. DFT calculations point to the different reactivity on individual types of surfaces and different types of clusters.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2011

Number of the records: 1