Investigation of the relationship between electronic properties and reactivity of 3DOM LaFe1-xCoxO3 for methane reforming to produce syngas
文献类型：期刊论文
| 作者 | 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
|
| 刊名 | INTERNATIONAL JOURNAL OF ENERGY RESEARCH
 |
| 出版日期 | 2019-07-23 |
| 页码 | 15 |
| 关键词 | 3DOM perovskite chemical looping methane reforming synergism density functional theory |
| ISSN号 | 0363-907X |
| DOI | 10.1002/er.4736 |
| 通讯作者 | Zheng, Anqing(zhengaq@ms.giec.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | PEROVSKITE-TYPE OXIDES ; CHEMICAL LOOPING COMBUSTION ; OXYGEN CARRIERS ; HYDROGEN-PRODUCTION ; CATALYTIC COMBUSTION ; FE ; REDUCTION ; GAS ; DFT ; CA |
| 资助项目 | 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研究方向 | Energy & Fuels ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000477474200001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; Science & Technology Research Project of Guangdong Province ; National Key Research and Development Program of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/25357]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zheng, Anqing |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：广州能源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。