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Effect of the metal–support interaction on the activity and selectivity of methanol oxidation over Au supported on mesoporous oxides†
Chemical Communications ( IF 4.9 ) Pub Date : 2018-06-19 00:00:00 , DOI: 10.1039/c8cc04295k
Sunyoung Oh 1, 2, 3, 4, 5 , You Kyung Kim 3, 4, 5, 6, 7 , Chan Ho Jung 3, 4, 5, 6 , Won Hui Doh 3, 4, 5, 6 , Jeong Young Park 1, 2, 3, 4, 5
Affiliation  

To elucidate the factors affecting the catalytic properties of supported Au catalysts on the metal oxide support we investigated Au NPs deposited on crystallized mesoporous transition-metal oxides (m-oxides: Co3O4, NiO, and α-Fe2O3) prepared using the nanocasting method. The metal–oxide interaction in Au/mesoporous oxides resulted in higher catalytic activity for converting methanol to CO2 as a full oxidation product than pure m-oxides. Au/m-Fe2O3 exhibited high activity and low selectivity for methyl formate as a partial oxidative coupling product. We correlate the change in activity and selectivity with the interface between the Au and m-oxides.

中文翻译:

金属与载体之间的相互作用对介孔氧化物上金对甲醇的氧化活性和选择性的影响

为了阐明的因素影响上,我们调查金纳米粒子沉积在结晶中孔过渡金属氧化物中的金属氧化物载体负载Au催化剂的催化性能(-oxides:钴3 ø 4,NiO和的α-Fe 2 ö 3)中制备使用纳米浇铸法。在Au中的金属氧化物相互作用/中孔氧化物导致更高的催化活性,将甲醇转化为CO 2作为比纯全氧化产物-oxides。Au / m -Fe 2 O 3对甲酸甲酯作为部分氧化偶联产物具有较高的活性和较低的选择性。我们将活性和选择性的变化与Au和m-氧化物之间的界面联系起来。
更新日期:2018-06-19
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