Mechanism of CO coupling to dimethyl oxalate over Pd/α-Al2O3

被引：0

作者：

Lin Qian ^{[1
]}

Ji Yang ^{[1
]}

Tan Junqing ^{[1
]}

Xiao Wende ^{[1
]}

机构：

[1] E China Univ Sci & Technol, State Key Lab Chem React Engn, UNILAB, Shanghai 200237, Peoples R China

来源：

CHINESE JOURNAL OF CATALYSIS | 2008年 / 29卷 / 04期

关键词：

carbon monoxide; bridged adsorption; methyl nitrite; coupling; dimethyl oxalate; palladium; reaction mechanism; Fourier transform infrared spectroscopy;

D O I：

暂无

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The reaction mechanism of CO coupling to dimethyl oxalate over Pd/alpha-Al2O3 was studied by in situ FT-IR spectroscopy. The adsorption of two reactants, CO and methyl nitrite, on the catalyst was observed. Methyl nitrite can easily catalytically dissociate into methanol, formaldehyde, and methyl formate. By changing the addition sequence of the two reactants into the in situ reactor, the process of the coupling reaction was clearly observed. The results show that bridged adsorbed CO reacts with free methyl nitrite gas, and the key step of the whole reaction is the CO adsorption.

引用

页码：325 / 329

页数：5

共 23 条

[1] GAS-PHASE PYROLYSIS OF ALKYL NITRITES .5. METHYL NITRITE [J].