| JING Hai-feng,YU Bo,ZHOU Xing-wei,LIU Shang,ZHANG Cai,LIU Hong-yan,SONG Ke-xin,ZOU Xu,ZHANG Wei.Architecture and Microscoy Clarification of Multifunctional Non-noble Metal Electrocatalysts[J],50(11):49-74 |
| Architecture and Microscoy Clarification of Multifunctional Non-noble Metal Electrocatalysts |
| Received:July 13, 2021 Revised:September 09, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.11.004 |
| KeyWord:non-noble metal electrocatalyst construction chemistry electrocatalytic hydrogen evolution reaction electrocatalytic oxygen evolution reaction oxygen reduction reaction |
| Author | Institution |
| JING Hai-feng |
Electron Microscopy Center, Changchun , China |
| YU Bo |
Electron Microscopy Center, Changchun , China |
| ZHOU Xing-wei |
School of Materials Science and Engineering, Jilin University, Changchun , China |
| LIU Shang |
Electron Microscopy Center, Changchun , China |
| ZHANG Cai |
School of Material and Chemical Engineering, Xuzhou University of Technology, Xuzhou , China |
| LIU Hong-yan |
Electron Microscopy Center, Changchun , China |
| SONG Ke-xin |
School of Materials Science and Engineering, Jilin University, Changchun , China |
| ZOU Xu |
School of Materials Science and Engineering, Jilin University, Changchun , China |
| ZHANG Wei |
Electron Microscopy Center, Changchun , China;Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan , China |
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| Abstract: |
| Compared with the high production cost, rare earth reserves and low electrochemical stability of noble metal electrocatalysts, the preparation of non-noble metal electrocatalysts with low cost, high energy conversion efficiency, long service life and environmental friendliness is an important way to promote the development of energy storage and conversion technology. This paper reviewed monofunctional electrocatalysts, bifunctional electrocatalysts and multifunctional electrocatalysts for three important reactions in electrocatalytic process, i.e., hydrogen evolution reaction (HER), oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). The electrochemical reaction mechanisms of water splitting and fuel cell were introduced, respectively. The design, preparation, relationship and functional characteristics was described for the monofunctional electrocatalysts, bifunctional electrocatalysts and multifunctional electrocatalysts and other electrochemical materials. The systematical characterization and resolving were performed on these promising non-noble metal electrocatalysts by using scanning electron microscopy, atomic force scanning electron microscopy, transmission electron microscopy, X-ray energy dispersive spectroscopy, electron energy loss spectroscopy and other complementary techniques. The surface morphology, structure, internal composition, elemental distribution and other related information were also analyzed. From the aspects of providing more defect vacancies and potential active sites, optimizing interface interaction, increasing electrochemical specific surface area, functionalizing synergistic effect, the mechanisms of improving conductivity and enhancing stability of electrocatalyst as well as reducing cost were analyzed. Expectedly, it largely promotes their large-scale applications in those involved electrochemical energy conversion and storage. |
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