A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway

doi:10.1016/j.ijhydene.2020.08.277

GIEC OpenIR

	A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway
	Lian, Jing-Hong 1,2,3; Tan, Hong-Yi 1,2; Guo, Chang-Qing1,2,4 ; Wang, Zhi-Da 1,2; Shi, Yan 1,2; Lu, Zhuo-Xin 1,2; Shen, Li-Sha 1,2; Yan, Chang-Feng1,2,3
	2020-11-13
发表期刊	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN	0360-3199
卷号	45 期号:56 页码:31523-31537
通讯作者	Tan, Hong-Yi(tanhy@ms.giec.ac.cn) ; Yan, Chang-Feng(yancf@ms.giec.ac.cn)
摘要	To improve the stability of molybdenum carbide catalysts in dimethyl ether steam reforming (DSR), the inactivation mechanism and the performance of Pt modified catalyst has been investigated. The Mo2C oxidation induced by H2O is verified to be the main reason of catalytic deactivation. After modified with Pt, the H-2 production rate and selectivity are greatly enhanced, reaches 1605 mu mol min(-1).g(cat)(-1) at 350 degrees C, in comparison to that of the Mo2C/Al2O3 catalyst. Moreover, the 2%Pt-Mo2C/Al2O3 catalyst is more stable with only 20% activity loss after 50 h on stream compares to the 73% activity loss in 12 h with Mo2C/Al2O3 catalyst. By means of in-situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), the enhancement brought by Pt is ascribed to the consumption acceleration of intermediate oxygen species on catalyst surface and the decline of onset temperature of DSR reaction. It is expected that these findings can lead us to more practical molybdenum carbide catalysts in DSR. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
关键词	Steam reforming Dimethyl ether Molybdenum carbide Oxidation mechanism In-situ DRIFTS
DOI	10.1016/j.ijhydene.2020.08.277
关键词[WOS]	WATER-GAS SHIFT ; SUPPORTED NICKEL-CATALYSTS ; HYDROGEN-PRODUCTION ; BIFUNCTIONAL CATALYSTS ; METHANOL ; MO2C ; STABILITY ; ADSORPTION ; COPPER ; ACID
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51576201] ; Natural Science Foundation of Guangdong Province[2015A030312007] ; Natural Science Foundation of Guangdong Province[2018A050506071] ; Dalian National Laboratory for Clean Energy[DNL180405] ; Guangzhou Science and Technology Project[201904010412] ; DongGuan Innovative Research Team Program[2014607117]
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
项目资助者	National Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Dalian National Laboratory for Clean Energy ; Guangzhou Science and Technology Project ; DongGuan Innovative Research Team Program
WOS类目	Chemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS记录号	WOS:000583961000016
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/34835
专题	中国科学院广州能源研究所
通讯作者	Tan, Hong-Yi; Yan, Chang-Feng
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Hydrogen Prod & Utilizat Lab, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Dongguan Baida New Energy Shares Co Ltd, Dongguan 523808, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Lian, Jing-Hong,Tan, Hong-Yi,Guo, Chang-Qing,et al. A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2020,45(56):31523-31537.
APA	Lian, Jing-Hong.,Tan, Hong-Yi.,Guo, Chang-Qing.,Wang, Zhi-Da.,Shi, Yan.,...&Yan, Chang-Feng.(2020).A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,45(56),31523-31537.
MLA	Lian, Jing-Hong,et al."A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 45.56(2020):31523-31537.