Low temperature CO oxidation over unsupported nanoporous gold.
Supported Au nanoclusters are well-known for their unusual properties in catalysis. We describe here that nanostructured porous Au made via dealloying represents a new class of unsupported catalysts with extraordinary activities in important reactions such as CO oxidation. Although nanoporous Au may contain some oxides on the surface, our results demonstrate that it is metallic Au that plays the main role in this catalytic reaction. Furthermore, this material has good low-temperature catalytic stability and is extremely CO tolerant.
Xu
Caixia
C
Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
Su
Jixin
J
Xu
Xiaohong
X
Liu
Pengpeng
P
Zhao
Hongjuan
H
Tian
Fang
F
Ding
Yi
Y