10.1021/acs.inorgchem.8b02197.s001
Yali Liu
Yali
Liu
Tu-Nan Gao
Tu-Nan
Gao
Xi Chen
Xi
Chen
Kaiqian Li
Kaiqian
Li
Yali Ma
Yali
Ma
Hailong Xiong
Hailong
Xiong
Zhen-An Qiao
Zhen-An
Qiao
Mesoporous Metal Oxide Encapsulated Gold Nanocatalysts:
Enhanced Activity for Catalyst Application to Solvent-Free Aerobic
Oxidation of Hydrocarbons
American Chemical Society
2018
ultrasmall gold nanoparticles
gold nanoparticles
Enhanced Activity
mesoporous ZnO nanospheres
mesoporous metal oxide
Catalyst Application
Mesoporous Metal Oxide Encapsulated Gold Nanocatalysts
chemical stability
10 times
gold nanoparticle size
self-assembly method
Solvent-Free Aerobic Oxidation
indane oxidation
conversion efficiency
metal oxide
2018-10-02 13:24:22
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Mesoporous_Metal_Oxide_Encapsulated_Gold_Nanocatalysts_Enhanced_Activity_for_Catalyst_Application_to_Solvent-Free_Aerobic_Oxidation_of_Hydrocarbons/7157078
Here,
we present a series of experimental studies to encapsulate ultrasmall
gold nanoparticles into mesoporous metal oxide via an in situ self-assembly
method. Notably, the 2.0Au@mZnO catalyst (∼2.0 nm gold nanoparticles
loading on mesoporous ZnO nanospheres) shows excellent catalytic activity
for indane oxidation (120 °C, conversion 88.5%) and affords much
high turnover frequencies (9521 h<sup>–1</sup>). The catalytic
activity of these gold-based catalysts was found to be correlated
with the size of gold nanoparticles and the types of metal oxide supports.
With a decrease in gold nanoparticle size, the catalytic conversion
efficiency of indane oxidation increased. In addition, such catalysts
possessed high thermal and chemical stability and could be reused
more than 10 times without a remarkable loss of catalytic activity.