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| A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway | |
Lian, Jing-Hong1,2,3; Tan, Hong-Yi1,2; Guo, Chang-Qing1,2,4 ; Wang, Zhi-Da1,2; Shi, Yan1,2; Lu, Zhuo-Xin1,2; Shen, Li-Sha1,2; Yan, Chang-Feng1,2,3
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| 2020-11-13 | |
| Source Publication | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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| ISSN | 0360-3199 |
| Volume | 45Issue:56Pages:31523-31537 |
| Corresponding Author | Tan, Hong-Yi(tanhy@ms.giec.ac.cn) ; Yan, Chang-Feng(yancf@ms.giec.ac.cn) |
| Abstract | 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. |
| Keyword | Steam reforming Dimethyl ether Molybdenum carbide Oxidation mechanism In-situ DRIFTS |
| DOI | 10.1016/j.ijhydene.2020.08.277 |
| WOS Keyword | WATER-GAS SHIFT ; SUPPORTED NICKEL-CATALYSTS ; HYDROGEN-PRODUCTION ; BIFUNCTIONAL CATALYSTS ; METHANOL ; MO2C ; STABILITY ; ADSORPTION ; COPPER ; ACID |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Electrochemistry ; Energy & Fuels |
| Funding Organization | 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 Subject | Chemistry, Physical ; Electrochemistry ; Energy & Fuels |
| WOS ID | WOS:000583961000016 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/34835 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Tan, Hong-Yi; Yan, Chang-Feng |
| Affiliation | 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 |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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