共 21 条
Selective liquid phase oxidation using gold catalysts
被引:211
作者:
Bianchi, C
Porta, F
Prati, L
Rossi, M
机构:
[1] Univ Milan, Dipartimento Chim Fis & Elettrochim, I-20133 Milan, Italy
[2] Univ Milan, Dipartimento Chim Inorgan Met Organ & Analit, I-20133 Milan, Italy
[3] Univ Milan, Ctr CNR, I-20133 Milan, Italy
关键词:
gold catalyst;
selective oxidation;
carbon support;
D O I:
10.1023/A:1009065812889
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
Au/C and Au/oxide (Al2O3, TiO2) have been compared in the liquid phase oxidation of glycols and a different trend in reactivity revealed. On the oxides the activity of supported gold increases by decreasing particle size, whereas on carbon maximum activity is achieved with gold particle mean diameter around 7-8 nm. XPS revealed that in the latter case activity depends not only on the size of the gold particle but also on its surface concentration.
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页码:231 / 236
页数:6
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