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Rhodium Dispersion during NO/CO Conversions
DOI:
10.1002/anie.200701419
PMID:
17562548
Authors:
Andrew
Dent
(Diamond Light Source)
,
John
Evans
(University of Southampton, Diamond Light Source)
,
Steven G
Fiddy
(Daresbury Laboratory)
,
Bhrat
Jyoti
(Southampton University)
,
Moniek
Tromp
(Southampton University)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Angewandte Chemie International Edition
, VOL 46
, PAGES 5356 - 5358
State:
Published (Approved)
Published:
June 2007
Abstract: Change and change again: Under catalytic conditions for NO/CO conversion, simultaneous time-resolved extended X-ray absorption fine structure spectroscopy and IR studies show that the rhodium atoms in 5?wt?% Rh/Al2O3 rapidly migrate between CO-covered Rh particles and mononuclear Rh–NO sites depending on the changing gas composition. At lower temperatures (473?K), there is interconversion between mononuclear Rh(CO)2 and Rh(NO) centers.
Journal Keywords: Heterogeneous Catalysis \ Ir Spectroscopy \ Rhodium \Synchrotron Radiation
Subject Areas:
Chemistry
Facility: ESRF
Added On:
11/06/2010 07:25
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