Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| The structure-reactivity relationships of using three-dimensionally ordered macroporous LaFe1-xNixO3 perovskites for chemical-looping steam methane reforming | |
Shen, Yang1,2,3,4; Zhao, Kun1,2,3,4 ; He, Fang1,2,3; Li, Haibin1,2,3
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| 2019-04-01 | |
| Source Publication | JOURNAL OF THE ENERGY INSTITUTE
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| ISSN | 1743-9671 |
| Volume | 92Issue:2Pages:239-246 |
| Corresponding Author | Zhao, Kun(zhaokun@ms.giec.ac.cn) |
| Abstract | Chemical-looping steam methane reforming (CL-SMR) is a novel technology for syngas and hydrogen production without purification process. A series of three-dimensionally ordered macroporous (3DOM) LaFe1-xNixO3 (x = 0.05, 0.1, 0.15, 0.2, 0.25, 0.3) perovskite-type oxides were synthesized using the polystyrene colloidal crystal templating method. The structural and physico-chemical properties of the obtained oxides were investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD) and Brunauere-Emmette-Teller (BET) surface area technologies. The structure-reactivity relationships and effects of Ni-substitution on the improvement of reactivity and resistance to carbon formation were investigated in a thermo-gravimetric analyzer and a fixed-bed reactor. It was found that the as-prepared oxides obtained standard perovskite structures and the well-ordered skeleton was surrounded with uniform close-packed macroporous windows. Ni-substitution improved the ability for oxygen supply but simultaneously enhanced the methane dissociation. While the openness channel and large surface area of 3DOM perovskite allowed low mass-transfer resistances and provided high active sites for reaction. Complicated factors synergistically affected the reactivity and an optimal value for Ni-substitution is confirmed with x = 0.1 by comprehensively considering from the points of reactivity, resistance to carbon formation, as well as hydrogen generation capacity. During the following successive redox reactions, 3DOM LaFe0.9Ni0.1O3 exhibited good regenerability and thermo-stability probably converting 90% of CH4 into syngas in methane reforming stage and generating similar to 210-220 ml hydrogen in steam splitting stage. (C) 2018 Energy Institute. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Chemical-looping Methane reforming Syngas 3DOM perovskite Ni-substitution |
| DOI | 10.1016/j.joei.2018.01.012 |
| WOS Keyword | OXYGEN-CARRIER ; SYNTHESIS GAS ; HYDROGEN ; COMBUSTION ; CATALYSTS ; REACTOR ; OXIDES ; PERFORMANCE ; GENERATION ; OXIDATION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2017YFE0105500] ; Science & Technology Research Project of Guangdong Province[2015A010106009] ; National Natural Science Foundation of China[51406208] |
| WOS Research Area | Energy & Fuels |
| Funding Organization | National Key Research and Development Program of China ; Science & Technology Research Project of Guangdong Province ; National Natural Science Foundation of China |
| WOS Subject | Energy & Fuels |
| WOS ID | WOS:000460717800004 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/24762 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Zhao, Kun |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Beijing, Peoples R China 2.CAS Key Lab Renewable Energy, Beijing, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, Guangdong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Shen, Yang,Zhao, Kun,He, Fang,et al. The structure-reactivity relationships of using three-dimensionally ordered macroporous LaFe1-xNixO3 perovskites for chemical-looping steam methane reforming[J]. JOURNAL OF THE ENERGY INSTITUTE,2019,92(2):239-246. |
| APA | Shen, Yang,Zhao, Kun,He, Fang,&Li, Haibin.(2019).The structure-reactivity relationships of using three-dimensionally ordered macroporous LaFe1-xNixO3 perovskites for chemical-looping steam methane reforming.JOURNAL OF THE ENERGY INSTITUTE,92(2),239-246. |
| MLA | Shen, Yang,et al."The structure-reactivity relationships of using three-dimensionally ordered macroporous LaFe1-xNixO3 perovskites for chemical-looping steam methane reforming".JOURNAL OF THE ENERGY INSTITUTE 92.2(2019):239-246. |
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