Unravelling the role of ceria in improving the stability of Mo2C- based catalysts for the steam reforming of dimethyl ether

doi:10.1039/d1cy00824b

	Unravelling the role of ceria in improving the stability of Mo2C- based catalysts for the steam reforming of dimethyl ether
	Lian, Jing-Hong 1,2,4,5; Tan, Hong-Yi 1,2,5; Guo, Chang-Qing 1,2,3,5; Shen, Li-Sha 1,2,5; Lu, Zhuo-Xin 1,2,5; Shi, Yan 1,2,5; Yan, Chang-Feng 1,2,4,5
刊名	CATALYSIS SCIENCE & TECHNOLOGY
	2021-07-06
页码	9
ISSN号	2044-4753
DOI	10.1039/d1cy00824b
通讯作者	Tan, Hong-Yi(tanhy@ms.giec.ac.cn) ; Yan, Chang-Feng(yancf@ms.giec.ac.cn)
英文摘要	The inactivation of molybdenum carbide catalysts by water oxidation is a significant problem in the steam reforming of dimethyl ether (SRD) reaction. In this work, the catalytic performance and stability of molybdenum carbide are greatly improved by ceria modification. Ceria leads to the transformation of methoxy to formate instead of methyl formate, which accelerates the reaction, as identified using in situ diffuse reflectance Fourier-transform infrared spectroscopy (DRIFTS). Moreover, the reactant water is preferentially dissociated on ceria and generates hydroxyl groups instead of being directly dissociated on molybdenum carbide. This reduces the long-time intimate contact of the hydroxyl groups with the molybdenum carbide and protects it from being deactivated by water oxidation. This study not only contributes to the research into molybdenum carbide catalysts for the SRD, but also provides a conceptual approach for overcoming the deactivation of carbide catalysts through oxidation in other similar environments.
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] ; STS Regional Key Project of Chinese Academy of Sciences[KFJ-STS-QYZD-2021-02-003]
WOS关键词	TEMPERATURE HYDROGEN-PRODUCTION ; METHANOL ; ETHANOL ; CARBIDE ; WATER ; CEO2 ; DECOMPOSITION ; PERFORMANCE ; ADSORPTION ; PLATINUM
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000674279400001
资助机构	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 ; STS Regional Key Project of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33493]
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, Guangzhou 510640, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Dongguan Baida New Energy Shares Co Ltd, Dongguan 523808, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Lian, Jing-Hong,Tan, Hong-Yi,Guo, Chang-Qing,et al. Unravelling the role of ceria in improving the stability of Mo2C- based catalysts for the steam reforming of dimethyl ether[J]. CATALYSIS SCIENCE & TECHNOLOGY,2021:9.
APA	Lian, Jing-Hong.,Tan, Hong-Yi.,Guo, Chang-Qing.,Shen, Li-Sha.,Lu, Zhuo-Xin.,...&Yan, Chang-Feng.(2021).Unravelling the role of ceria in improving the stability of Mo2C- based catalysts for the steam reforming of dimethyl ether.CATALYSIS SCIENCE & TECHNOLOGY,9.
MLA	Lian, Jing-Hong,et al."Unravelling the role of ceria in improving the stability of Mo2C- based catalysts for the steam reforming of dimethyl ether".CATALYSIS SCIENCE & TECHNOLOGY (2021):9.