Title
Selective oxidation of ammonia on RuO2(110) A combined DFT and KMC study
Abbreviated Journal Title
J. Catal.
Keywords
Ruthenium; Oxide; Ammonia; Oxidation; Kinetic Monte Carlo; Density; functional theory; Catalysis; Selectivity; ROOM-TEMPERATURE; CO OXIDATION; SURFACE; MECHANISM; PRESSURE; KINETICS; POINTS; Chemistry, Physical; Engineering, Chemical
Abstract
We have used a combination of density functional theory (OFT) and kinetic Monte Carlo (KMC) simulations to calculate the reaction rates for the selective oxidation of ammonia on RuO2(1 1 0) Our KMC simulations of 18 reactions among NHx(x-0-3) and OHx(x-0-2) species on RuO2(1 1 0) show 93% selectivity for NO in close agreement with experiment (similar to 95%) The chief factor in the high selectivity for NO on the RuO2(1 1 0) surface is the significantly reduced N diffusion (via N blocking) caused by various intermediates present on the RuO2(1 1 0) surface which severely inhibits the recombination rate of N + N - > N-2 but interfere far less with that of N + O - > NO owing to the nearby availability of O from dissociation of O-2 (C) 2010 Elsevier Inc All rights reserved
Journal Title
Journal of Catalysis
Volume
276
Issue/Number
2
Publication Date
1-1-2010
Document Type
Article
Language
English
First Page
371
Last Page
381
WOS Identifier
ISSN
0021-9517
Recommended Citation
"Selective oxidation of ammonia on RuO2(110) A combined DFT and KMC study" (2010). Faculty Bibliography 2010s. 263.
https://stars.library.ucf.edu/facultybib2010/263
Comments
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