TY - JOUR
T1 - Thermodynamics and kinetics of the adsorption of carbon monoxide on supported gold catalysts probed by static adsorption microcalorimetry
T2 - The role of the support
AU - Xia, Xinyu
AU - Strunk, Jennifer
AU - Busser, Wilma
AU - Comotti, Massimiliano
AU - Schüth, Ferdi
AU - Muhler, Martin
PY - 2009/5/28
Y1 - 2009/5/28
N2 - The interaction of carbon monoxide and oxygen with gold particles supported on zinc oxide, alumina, and titania was investigated by microcalorimetry. Multiple processes were detected during CO adsorption, including adsorption of CO on the gold particles and support, oxidation of CO, and formation of carbonates. The rate of O2 adsorption was much slower than that of CO adsorption. The heats and entropies of CO adsorption on the Au sites indicated that the interaction between CO and Au supported on TiO2 is much stronger than that between CO and Au supported on ZnO. The Au/ZnO sample had the largest amount of lattice oxygen (7.6 μmol/g), which reacted with CO to give CO2.
AB - The interaction of carbon monoxide and oxygen with gold particles supported on zinc oxide, alumina, and titania was investigated by microcalorimetry. Multiple processes were detected during CO adsorption, including adsorption of CO on the gold particles and support, oxidation of CO, and formation of carbonates. The rate of O2 adsorption was much slower than that of CO adsorption. The heats and entropies of CO adsorption on the Au sites indicated that the interaction between CO and Au supported on TiO2 is much stronger than that between CO and Au supported on ZnO. The Au/ZnO sample had the largest amount of lattice oxygen (7.6 μmol/g), which reacted with CO to give CO2.
UR - http://www.scopus.com/inward/record.url?scp=67649201025&partnerID=8YFLogxK
U2 - 10.1021/jp809804v
DO - 10.1021/jp809804v
M3 - Article
AN - SCOPUS:67649201025
SN - 1932-7447
VL - 113
SP - 9328
EP - 9335
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 21
ER -