WANG Xibing, JI Tuo, LI Licheng, et al. Au/TiO2-B catalyst for low-temperature CO oxidation[J]. CIESC Journal, 2014, (5): 1636-1643. DOI: 10.3969/j.issn.0438-1157.2014.05.012.
WANG Xibing, JI Tuo, LI Licheng, et al. Au/TiO2-B catalyst for low-temperature CO oxidation[J]. CIESC Journal, 2014, (5): 1636-1643. DOI: 10.3969/j.issn.0438-1157.2014.05.012.DOI:
Exploring the catalytic performance of gold nanoparticles on the novel materials can effectively extend the application of gold catalyst. In this case
TiO2-B is used as a support to load gold nanoparticles for low-temperature CO oxidation. The TiO2-B was shaped in micron-scale fibers with length of 5—20μm
and the gold nanoparticles with size of ~ 3 nm could be uniformly dispersed on the surface of TiO2-B. CO oxidation tests showed that the catalytic performance of gold nanoparticles was influenced by calcination temperature of TiO2-B which gave rise to the difference in gold dispersion and interaction between gold nanoparticles and support. The activity of gold deposited on the support with pure TiO2-B phase could exceed/match that on anatase nanopowders. Moreover
the gold nanoparticles activated at 300℃ showed the best CO oxidation performance
and the catalyst activated in oxidative atmosphere had a better catalytic performance than that in inert or reductive atmosphere.