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Intrinsic Catalytic Activity versus Effective Light Usage—A Reply to Professor Kisch’s Comments
Author(s) -
Maschmeyer Thomas,
Che Michel
Publication year - 2010
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.201004872
Subject(s) - photocatalysis , plot (graphics) , plateau (mathematics) , catalysis , quantum yield , quantum , semiconductor , quantum chemical , materials science , photochemistry , nanotechnology , chemistry , physics , quantum mechanics , organic chemistry , mathematics , optoelectronics , molecule , statistics , mathematical analysis , fluorescence
Breaking the impasse : Earlier this year Maschmeyer and Che outlined an approach for normalizing and comparing the apparent quantum yields (AQY) for hydrogen photogeneration catalyzed by semiconductor powders. In the plot of photocatalyst concentration versus AQY they proposed that the linear region was the most appropriate region for comparison. In his Correspondence Kisch refutes this proposal and states that the area at the onset of the plateau region (B) in a plot of catalyst concentration versus reaction rate is relevant. Maschmeyer and Che explain their rationale and conclude that the discussion has arisen because of different emphases in studying photocatalysis.