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Oxidative Dehydrogenation on Nanocarbon: Identification and Quantification of Active Sites by Chemical Titration
Author(s) -
Qi Wei,
Liu Wei,
Zhang Bingsen,
Gu Xianmo,
Guo Xiaoling,
Su Dangsheng
Publication year - 2013
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.201306825
Subject(s) - dehydrogenation , titration , oxidative phosphorylation , identification (biology) , chemistry , environmental chemistry , combinatorial chemistry , organic chemistry , nanotechnology , materials science , biochemistry , catalysis , biology , botany
Ketonic carbonyl groups are catalytic active sites for oxidative dehydrogenation (ODH) reactions on carbon nanotubes. The quantity of these groups could be calculated from chemical titration with hydrazine compounds. ODH catalytic activity of nanocarbon is directly correlated with surface concentration of ketonic carbonyl groups, and the turnover frequency normalized by the number of active sites reflects the intrinsic activity of nanocarbon catalysts.