Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Investigation of the relationship between electronic properties and reactivity of 3DOM LaFe1-xCoxO3 for methane reforming to produce syngas | |
Zhao, Kun1,2,3 ; Chen, Jing1,2,3,4; Li, Haibin1,2,3; Zheng, Anqing1,2,3; Huang, Zhen1,2,3; Wei, Guoqiang1,2,3; Zhao, Zengli1,2,3; Wang, Xiaobo1,2,3
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| 2019-07-23 | |
| Source Publication | INTERNATIONAL JOURNAL OF ENERGY RESEARCH
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| ISSN | 0363-907X |
| Pages | 15 |
| Corresponding Author | Zheng, Anqing(zhengaq@ms.giec.ac.cn) |
| Abstract | Chemical looping steam methane reforming (CL-SMR) provides a promising pathway to reform methane and to jointly generate high-quality syngas and hydrogen. The key issue is the designing of oxygen carriers (OCs) with high reactivity, good selectivity, and excellent recyclability. The high temperature required for chemical looping reaction also presents challenges in terms of producing stable and anticarbon deposition OCs. Here, we report a three-dimensional ordered macroporous (3DOM) Co-Fe doping perovskites as OCs for CL-SMR, in which the active perovskite phases are equipped with well-ordered wall skeleton in three dimensions. Multiple of characterization techniques such as H-2-TPR, XRD, SEM, and XPS were used to characterize the physicochemical properties of OCs. Combining with the tests on fixed-bed reactor, we demonstrated that the 3DOM structures are beneficial to reduce the mass diffusion resistance and to supply more active sites for fuel conversion. The synergetic effects of metal Fe-Co promote the reactivity by increasing the reaction rate and reducing the reaction temperature. These experiment results are further explored by using the first-principle calculations. Differences in the atomic charges and electronic densities show that there are more negative oxygen ions in the doping cells. The substitution of Co increased the transition intensity of Co3d-O2p orbit, and more electrons were excited near Fermi level. These deeper predictions insight into the synergistic mechanism will provide meaningful information for the selecting and designing of oxygen carriers in subsequent study. |
| Keyword | 3DOM perovskite chemical looping methane reforming synergism density functional theory |
| DOI | 10.1002/er.4736 |
| WOS Keyword | PEROVSKITE-TYPE OXIDES ; CHEMICAL LOOPING COMBUSTION ; OXYGEN CARRIERS ; HYDROGEN-PRODUCTION ; CATALYTIC COMBUSTION ; FE ; REDUCTION ; GAS ; DFT ; CA |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51776210] ; National Natural Science Foundation of China[51876205] ; Science & Technology Research Project of Guangdong Province[2015A010106009] ; National Key Research and Development Program of China[2017YFE0105500] |
| WOS Research Area | Energy & Fuels ; Nuclear Science & Technology |
| Funding Organization | National Natural Science Foundation of China ; Science & Technology Research Project of Guangdong Province ; National Key Research and Development Program of China |
| WOS Subject | Energy & Fuels ; Nuclear Science & Technology |
| WOS ID | WOS:000477474200001 |
| Publisher | WILEY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/25358 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Zheng, Anqing |
| 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 Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zhao, Kun,Chen, Jing,Li, Haibin,et al. Investigation of the relationship between electronic properties and reactivity of 3DOM LaFe1-xCoxO3 for methane reforming to produce syngas[J]. INTERNATIONAL JOURNAL OF ENERGY RESEARCH,2019:15. |
| APA | Zhao, Kun.,Chen, Jing.,Li, Haibin.,Zheng, Anqing.,Huang, Zhen.,...&Wang, Xiaobo.(2019).Investigation of the relationship between electronic properties and reactivity of 3DOM LaFe1-xCoxO3 for methane reforming to produce syngas.INTERNATIONAL JOURNAL OF ENERGY RESEARCH,15. |
| MLA | Zhao, Kun,et al."Investigation of the relationship between electronic properties and reactivity of 3DOM LaFe1-xCoxO3 for methane reforming to produce syngas".INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2019):15. |
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