A highly active and stable Pt modified molybdenum carbide catalyst for steam reforming of dimethyl ether and the reaction pathway
文献类型：期刊论文
| 作者 | Lian, Jing-Hong2,3,4; Tan, Hong-Yi3,4; Guo, Chang-Qing1,3,4 ; Wang, Zhi-Da3,4; Shi, Yan3,4; Lu, Zhuo-Xin3,4; Shen, Li-Sha3,4; Yan, Chang-Feng2,3,4
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| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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| 出版日期 | 2020-11-13 |
| 卷号 | 45期号:56页码:31523-31537 |
| 关键词 | Steam reforming Dimethyl ether Molybdenum carbide Oxidation mechanism In-situ DRIFTS |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2020.08.277 |
| 通讯作者 | Tan, Hong-Yi(tanhy@ms.giec.ac.cn) ; Yan, Chang-Feng(yancf@ms.giec.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | WATER-GAS SHIFT ; SUPPORTED NICKEL-CATALYSTS ; HYDROGEN-PRODUCTION ; BIFUNCTIONAL CATALYSTS ; METHANOL ; MO2C ; STABILITY ; ADSORPTION ; COPPER ; ACID |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000583961000016 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 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 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/34834]  |
| 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.Dongguan Baida New Energy Shares Co Ltd, Dongguan 523808, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Hydrogen Prod & Utilizat Lab, 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. 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. |
入库方式： OAI收割
来源：广州能源研究所
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