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Citation: Yun Hong, Zhang Hui, Chen Jian-Hua, Chen Hong-Bo, Lin Chang-Jian. The Intermediate State and Mechanism of the Steam Reforming of Methanol over CuO-ZnO-ZrO₂ Catalysts[J]. Acta Physico-Chimica Sinica, ;2004, 20(05): 524-528. doi: 10.3866/PKU.WHXB20040516 shu

The Intermediate State and Mechanism of the Steam Reforming of Methanol over CuO-ZnO-ZrO₂ Catalysts

1.
Department of Chemistry, State Key Laboratory for Physical Chemistry of the Solid Surface , Xiamen University, Xiamen　361005

Received Date: 28 October 2003
Available Online: 15 May 2004

The temperature-programmed desorption (TPD) and temperature-programmed surface reaction (TPSR) were studied by in situ mass spectrographic analysis. The results showed that methanol exists on the reactive surface of catalysts as molecular state and that adsorbed formate is one of intermediate species for the steam reforming of methanol (SRM).When the concentration of methanol among gas mixture is higher then 5.4％,0.37％ and 0.17％ for catalyst CuO, CuO-ZnO and CuO-ZnO-ZrO2, respectively, adsorbed formate decomposes into CO2 and H2,and conversely,CO,CO2 and H2 are products of formate decomposition.
- CuO-ZnO-ZrO₂ catalyst;Steam reforming of methanol (SRM);　Methanol;Reaction mechanism;Intermediate
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The Intermediate State and Mechanism of the Steam Reforming of Methanol over CuO-ZnO-ZrO2 Catalysts

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通讯作者: 陈斌, bchen63@163.com

The Intermediate State and Mechanism of the Steam Reforming of Methanol over CuO-ZnO-ZrO₂ Catalysts