TY - JOUR
T1 - Reaction intermediate species during the steam reforming of methanol over metal modified molybdenum carbide catalysts
AU - Cao, Ji
AU - Ma, Yufei
AU - Guan, Guoqing
AU - Hao, Xiaogang
AU - Ma, Xuli
AU - Wang, Zhongde
AU - Kusakabe, Katsuki
AU - Abudula, Abuliti
N1 - Funding Information:
This work is supported by Japan Science and Technology Agency (JST) , and Aomori City Government, Japan . Mr. Ma thanks the State Scholarship Fund of China Scholarship Council (2012).
Publisher Copyright:
© 2016 Elsevier B.V.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2016/7/15
Y1 - 2016/7/15
N2 - To understand steam reforming of methanol (SRM) reaction pathways over the surfaces of various metal-modified molybdenum carbides, the reaction intermediate species generated during the SRM reaction are investigated by using a temperature programmed surface reaction (TPSR) approach, in which a mass spectroscopy is applied to detect the produced species on-line. It is found that the reaction temperature affects the formation of different intermediate species over different catalysts. At the temperature lower than 180 °C, SRM reaction proceeds over Cu modified molybdenum carbide surface through formic acid (HCOOH) intermediate pathway, but at the temperature over 180 °C, the reactions over pure β-Mo2C, Ni, Cu and Pt modified molybdenum carbide surfaces proceed through methyl-formate (HCOOCH3) intermediate pathway. It is expected that these findings can help us to understand the mechanism on SRM reaction over molybdenum carbide based catalysts.
AB - To understand steam reforming of methanol (SRM) reaction pathways over the surfaces of various metal-modified molybdenum carbides, the reaction intermediate species generated during the SRM reaction are investigated by using a temperature programmed surface reaction (TPSR) approach, in which a mass spectroscopy is applied to detect the produced species on-line. It is found that the reaction temperature affects the formation of different intermediate species over different catalysts. At the temperature lower than 180 °C, SRM reaction proceeds over Cu modified molybdenum carbide surface through formic acid (HCOOH) intermediate pathway, but at the temperature over 180 °C, the reactions over pure β-Mo2C, Ni, Cu and Pt modified molybdenum carbide surfaces proceed through methyl-formate (HCOOCH3) intermediate pathway. It is expected that these findings can help us to understand the mechanism on SRM reaction over molybdenum carbide based catalysts.
KW - Mechanism
KW - Metal-modified molybdenum carbide
KW - Molybdenum carbide
KW - Reaction intermediate species
KW - Steam reforming of methanol
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U2 - 10.1016/j.apcatb.2016.02.021
DO - 10.1016/j.apcatb.2016.02.021
M3 - Article
AN - SCOPUS:84958526500
VL - 189
SP - 12
EP - 18
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
SN - 0926-3373
ER -