TY - JOUR
T1 - Re-dispersion of gold supported on a ‘mixed’ oxide support
AU - Morgan, Kevin
AU - Burch, Robbie
AU - Daous, Muhammad
AU - Delgado, Juan Jose
AU - Goguet, Alexandre
AU - Hardacre, Christopher
AU - Petrov, Lachezar A.
AU - Rooney, David W.
PY - 2015/8
Y1 - 2015/8
N2 - The ability to reactivate, stabilize and increase the lifetime of gold catalysts by dispersing large, inactive gold nanoparticles to smaller nanoparticles provides an opportunity to make gold catalysts more practical for industrial applications. Previously it has been demonstrated that mild treatment with iodomethane (CH3I) (J. Am. Chem. Soc., 2009, 131, 6973; Angew. Chem. Int. Ed., 2011, 50, 8912) was able to re-disperse gold on carbon and metal oxide supports. In the current work, we show that this technique can be applied to re-disperse gold on a ‘mixed’ metal oxide, namely a mechanical mixture of ceria, zirconia and titania. Characterization was conducted to gage the impact of the iodomethane (CH3I) treatment on a previously sintered catalyst.
AB - The ability to reactivate, stabilize and increase the lifetime of gold catalysts by dispersing large, inactive gold nanoparticles to smaller nanoparticles provides an opportunity to make gold catalysts more practical for industrial applications. Previously it has been demonstrated that mild treatment with iodomethane (CH3I) (J. Am. Chem. Soc., 2009, 131, 6973; Angew. Chem. Int. Ed., 2011, 50, 8912) was able to re-disperse gold on carbon and metal oxide supports. In the current work, we show that this technique can be applied to re-disperse gold on a ‘mixed’ metal oxide, namely a mechanical mixture of ceria, zirconia and titania. Characterization was conducted to gage the impact of the iodomethane (CH3I) treatment on a previously sintered catalyst.
U2 - 10.1179/2055075815Y.0000000005
DO - 10.1179/2055075815Y.0000000005
M3 - Article
VL - 1
SP - 120
EP - 124
JO - Catalysis Structure and Reactivity
JF - Catalysis Structure and Reactivity
SN - 2055-074X
IS - 3
ER -