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Photochemistry of Methane on Pd/Al 2 O 3 Model Catalysts: Control of Photochemistry on Transition Metal Surfaces
Author(s) -
Watanabe Kazuo,
Matsumoto Yoshiyasu,
Kampling Margarethe,
AlShamery Katharina,
Freund HansJoachim
Publication year - 1999
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/(sici)1521-3773(19990802)38:15<2192::aid-anie2192>3.0.co;2-x
Subject(s) - transition metal , photodissociation , methane , catalysis , metal , desorption , chemistry , irradiation , photochemistry , photocatalysis , adsorption , organic chemistry , physics , nuclear physics
The mean size of the Pd clusters deposited on an Al 2 O 3 thin film influences the efficiency of photodissociation of CD 4 into CD 3 and D as well as the photodesorpion upon irradiation with 193‐nm laser light. The picture shows the degree of desorption on Pd clusters of various sizes (as well as on a Pd(111) single‐crystal surface) as a function of temperature; the values given refer to the average thickness of the evaporated metal layer.