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Hydrogen Dissociation by Gold Clusters
Author(s) -
Fujitani Tadahiro,
Nakamura Isao,
Akita Tomoki,
Okumura Mitsutaka,
Haruta Masatake
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200905380
Subject(s) - dissociation (chemistry) , hydrogen , inverse , chemistry , computer science , crystallography , theoretical physics , information retrieval , physics , mathematics , quantum mechanics , geometry
The rate of H 2 –D 2 exchange increases in proportion to the inverse square of the mean diameter of gold particles supported on TiO 2 (see picture), which indicates that hydrogen dissociation takes place on the perimeter interfaces between the gold and TiO 2 and that the catalytic activity for H 2 dissociation is correlated neither to a change in the fraction of edge or corner sites nor to a change in the electronic nature induced by the quantum size effect.