Residential College | false |
Status | 已發表Published |
Anodized AlCoCrFeNi high-entropy alloy for alkaline water electrolysis with ultra-high performance | |
Alternative Title | 阳极氧化AlCoCrFeNi高熵合金用于高效碱性电解水 |
Zhou, Pengfei1; Wong, Po Kee2; Niu, Pengda3; Chen, Mingpeng1; Kwok, Chi Tat2; Tang, Yuxin4; Li, Ruidi3; Wang, Shuangpeng1; Pan, Hui1,5 | |
2022-11-11 | |
Source Publication | Science China Materials |
ISSN | 2095-8226 |
Volume | 66Issue:3Pages:1033–1041 |
Abstract | Alkaline water electrolysis (AWE) is a prospective method for producing green hydrogen to solve the energy crisis and reduce environmental pollution. However, the hydrogen production efficiency through this process is exceptionally low because the electrodes are expensive and inefficient. In this work, a kind of high-entropy alloy (HEA), bulk AlCoCrFeNi, is used as the efficient electrode for AWE. Results show that the HEA treated by 5-min fast anodization can achieve ultra-high catalytic activities for hydrogen and oxygen evolution reactions with low overpotentials of 880 and 845 mV to reach the current densities of −500 and 500 mA cm, respectively. For full water splitting, it only needs 3.00 V and exhibits excellent stability of more than 100 h at 500 mA cm. Our study demonstrates that the anodized AlCoCrFeNi HEA has promising applications as a highly efficient catalyst in industrial water electrolysis for hydrogen production, potentially addressing the energy crisis and environmental concerns. |
Keyword | Electrocatalysis High-entropy Alloy Anodization Alkaline Water Electrolysis High Current Densities |
DOI | 10.1007/s40843-022-2234-5 |
URL | View the original |
Indexed By | SCIE |
Language | 中文Chinese |
WOS Research Area | Materials Science |
WOS Subject | Materials Science, Multidisciplinary |
WOS ID | WOS:000884184500001 |
Publisher | SCIENCE PRESS, 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA |
Scopus ID | 2-s2.0-85141940377 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | DEPARTMENT OF PHYSICS AND CHEMISTRY Faculty of Science and Technology INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING DEPARTMENT OF ELECTROMECHANICAL ENGINEERING |
Corresponding Author | Tang, Yuxin; Li, Ruidi; Wang, Shuangpeng; Pan, Hui |
Affiliation | 1.Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR 999078, China 2.Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau, Macao SAR 999078, China 3.Science and Technology on High Strength Structural Materials Laboratory, State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China 4.College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, China 5.Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao SAR 999078, China |
First Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING |
Corresponding Author Affilication | INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING; Faculty of Science and Technology |
Recommended Citation GB/T 7714 | Zhou, Pengfei,Wong, Po Kee,Niu, Pengda,et al. Anodized AlCoCrFeNi high-entropy alloy for alkaline water electrolysis with ultra-high performance[J]. Science China Materials, 2022, 66(3), 1033–1041. |
APA | Zhou, Pengfei., Wong, Po Kee., Niu, Pengda., Chen, Mingpeng., Kwok, Chi Tat., Tang, Yuxin., Li, Ruidi., Wang, Shuangpeng., & Pan, Hui (2022). Anodized AlCoCrFeNi high-entropy alloy for alkaline water electrolysis with ultra-high performance. Science China Materials, 66(3), 1033–1041. |
MLA | Zhou, Pengfei,et al."Anodized AlCoCrFeNi high-entropy alloy for alkaline water electrolysis with ultra-high performance".Science China Materials 66.3(2022):1033–1041. |
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