TY - GEN
T1 - Reaction-relevant gold structures for low temperature water-gas shift catalysis
AU - Deng, Weiling
AU - Zhai, Yanping
AU - Flytzani-Stephanopoulos, Maria
AU - Frenkel, Anatoly
PY - 2007
Y1 - 2007
N2 - Nanoscale gold on oxide supports is an excellent catalyst for the oxidation of CO by various oxidants, e.g., oxygen in the low temperature CO oxidation and the preferential CO oxidation reactions, and water in the low temperature water-gas shift (WGS) reaction. These are important steps for the total removal of CO from hydrogen-rich reformate gas streams feeding low temperature PEM fuel cells. Results from catalytic activity tests and structural investigations of nanoscale Au/Fe2O3 and Au/CeO2 used for the WGS reaction were presented. The apparent activation energy of the WGS reaction was similar over the Au-CeO2 and Au-Fe2O3 catalysts. The oxidation states of gold were controlled by the oxygen potential in the reaction gas composition. This is an abstract of a paper presented at the 2007 AIChE Annual Meeting (Salt Lake City, UT 11/4-9/2007).
AB - Nanoscale gold on oxide supports is an excellent catalyst for the oxidation of CO by various oxidants, e.g., oxygen in the low temperature CO oxidation and the preferential CO oxidation reactions, and water in the low temperature water-gas shift (WGS) reaction. These are important steps for the total removal of CO from hydrogen-rich reformate gas streams feeding low temperature PEM fuel cells. Results from catalytic activity tests and structural investigations of nanoscale Au/Fe2O3 and Au/CeO2 used for the WGS reaction were presented. The apparent activation energy of the WGS reaction was similar over the Au-CeO2 and Au-Fe2O3 catalysts. The oxidation states of gold were controlled by the oxygen potential in the reaction gas composition. This is an abstract of a paper presented at the 2007 AIChE Annual Meeting (Salt Lake City, UT 11/4-9/2007).
UR - https://www.scopus.com/pages/publications/58049098094
M3 - Conference contribution
AN - SCOPUS:58049098094
SN - 9780816910229
T3 - 2007 AIChE Annual Meeting
BT - 2007 AIChE Annual Meeting
T2 - 2007 AIChE Annual Meeting
Y2 - 4 November 2007 through 9 November 2007
ER -