Noble-metal-free OER electrocatalysts working at high current densities over 1000 mA cm−2：From fundamental understanding to design principles

Xian Zhang1; Mengtian Jin2; Feifei Jia1; Jiaqi Huang2; Abbas Amini4; Shaoxian Song1; Hao Yi1; Chun Cheng2,3

2022-06-25

10.1002/eem2.12457

Energy & Environmental Materials   影响因子和分区

2575-0356

Alkaline water electrolysis provides a promising route for "green hydrogen" generation, where anodic oxygen evolution reaction (OER) plays a crucial role in coupling with cathodic hydrogen evolution reaction. To date, the development of highly active and durable OER catalysts based on earth-abundant elements has drawn wide attention; nevertheless, their performance under high current densities (HCDs >= 1000 mA cm(-2)) has been less emphasized. This situation has seriously impeded large-scale electrolysis industrialization. In this review, in order to provide a guideline for designing high-performance OER electrocatalysts, the effects of HCD on catalytic performance involving electron transfer, mass transfer, and physical/chemical stability are summarized. Furthermore, the design principles were pointed out for obtaining efficient and robust OER electrocatalysts in light of recent progress of OER electrocatalysts working above 1000 mA cm(-2). These include the aspects of developing self-supported catalytic electrodes, enhancing intrinsic activity, enhancing the catalyst-support interaction, engineering surface wettability, and introducing protective layer. Finally, summaries and outlooks in achieving OER at industrially relevant HCDs are proposed.

alkaline water splitting high current density long-term stability noble-metal-free electrocatalysts oxygen evolution reaction

SCI ; EI

英语

通讯

null[91963129] ; null[51776094] ; null[2018B030322001] ; null[JCYJ20180504165655180]

Materials Science

Materials Science, Multidisciplinary

WOS:000906542900001

WILEY

20230113343141

Alkalinity ; Catalyst activity ; Current density ; Electrocatalysts ; Electrolysis ; Mass transfer ; Metal working ; Oxygen

Metal Forming Practice:535.2.2 ; Precious Metals:547.1 ; Mass Transfer:641.3 ; Electricity: Basic Concepts and Phenomena:701.1 ; Chemistry, General:801.1 ; Electrochemistry:801.4.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804

人工提交

1.School of Resources and Environmental Engineering, Wuhan University of Technology Wuhan 430070, China
2.Department of Materials Science and Engineering, Southern University of Science and Technology Shenzhen 518055, China
3.Guangdong Provincial Key Laboratory of Energy Materials for Electric Southern University of Science and Technology
4.Center for Infrastructure Engineering, Western Sydney University, Kingswood New South Wales 2751, Australia

Xian Zhang,Mengtian Jin,Feifei Jia,等. Noble-metal-free OER electrocatalysts working at high current densities over 1000 mA cm−2：From fundamental understanding to design principles[J]. Energy & Environmental Materials,2022,6(5).

Xian Zhang.,Mengtian Jin.,Feifei Jia.,Jiaqi Huang.,Abbas Amini.,...&Chun Cheng.(2022).Noble-metal-free OER electrocatalysts working at high current densities over 1000 mA cm−2：From fundamental understanding to design principles.Energy & Environmental Materials,6(5).

Xian Zhang,et al."Noble-metal-free OER electrocatalysts working at high current densities over 1000 mA cm−2：From fundamental understanding to design principles".Energy & Environmental Materials 6.5(2022).