Identify fine microstructure of multifarious iron oxides via O K-edge EELS spectra
文献类型：期刊论文
| 作者 | Chen, Junnan2,3; Li, Yujie2,3; Lu, Ming1,3; Niu, Yiming2,3; Zhang, Bingsen2,3 |
| 刊名 | CHINESE CHEMICAL LETTERS
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 33期号:9页码:4375-4379 |
| 关键词 | EELS ELNES EXELFS Transition metal oxides DFT Wavelet analyze |
| ISSN号 | 1001-8417 |
| DOI | 10.1016/j.cclet.2021.12.027 |
| 通讯作者 | Zhang, Bingsen(bszhang@imr.ac.cn) |
| 英文摘要 | Relying on the electron energy loss spectrum (EELS) of metallic elements to obtain microstructure analysis is an investigation method of the reaction mechanisms of transition metal oxides (TMOs) in catalysis, energy storage and conversion. However, the low signal from K shell owing to insufficient electron beam energy, and the complicated electronic structure in L shell of the metal element restrict the analysis of the coordination environment of the TMOs. Herein, density functional theory (DFT) calculation, Fourier transform (FT) and wavelet transform (WT) were employed to probe the relationship between the four individual peaks in O K-edge spectra of iron oxides and the microstructure information (chemical bonds and atomic coordination). The findings show that the peak amplitude ration is in a linear correlation with the valence state of Fe element, and that the coordination number obtained by radial distribution function (RDF) is favorably linearly correlative with that from the standard coordination structure model. As a result, the quantitative analysis on the change of valence state and atomic coordination in microstructure can be realized by EELS O K-edge spectra. This study establishes EELS O K-edge spectrum as a promising pathway to quantitatively analyze the valence state and atomic coordination information of TMOs, and offers an effective method to conduct microstructure analysis via the EELS spectra of the non-metal element. (C) 2022 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. |
| 资助项目 | National Natural Science Foundation of China[22072164] ; National Natural Science Foundation of China[51932005] ; National Natural Science Foundation of China[21773269] ; National Natural Science Foundation of China[52161145403] ; Liao Ning Revitalization Talents Program[XLYC1807175] ; Research Fund of SYNL |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000815137000045 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Natural Science Foundation of China ; Liao Ning Revitalization Talents Program ; Research Fund of SYNL |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174986]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Bingsen |
| 作者单位 | 1.Jilin Normal Univ, Minist Educ, Key Lab Funct Mat Phys & Chem, Changchun 130103, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Junnan,Li, Yujie,Lu, Ming,et al. Identify fine microstructure of multifarious iron oxides via O K-edge EELS spectra[J]. CHINESE CHEMICAL LETTERS,2022,33(9):4375-4379. |
| APA | Chen, Junnan,Li, Yujie,Lu, Ming,Niu, Yiming,&Zhang, Bingsen.(2022).Identify fine microstructure of multifarious iron oxides via O K-edge EELS spectra.CHINESE CHEMICAL LETTERS,33(9),4375-4379. |
| MLA | Chen, Junnan,et al."Identify fine microstructure of multifarious iron oxides via O K-edge EELS spectra".CHINESE CHEMICAL LETTERS 33.9(2022):4375-4379. |
入库方式： OAI收割
来源：金属研究所
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