High-Performance Oxygen Evolution Reaction Electrocatalysts Discovered via High-Throughput Aerogel Synthesis

Chen, Zhuyang1; Xu, Chen1; Zhao, Fu1; Xi, Shibo2; Li, Weixuan3; Huang, Mingcheng3; Cai, Bijun3; Gu, Meng3; Wang, Hsing-Lin3; Xiang, X-D1,3

2022-12-01

10.1021/acscatal.2c03684

ACS Catalysis   Impact Factor & Quartile

2155-5435

A combinatorial high-throughput aerogel synthesis method is developed to systematically study the synergistic catalytic effects of multiple non-noble metal elements. A large number of aerogels with different compositions were synthesized and the corresponding ternary phase diagrams of the composition-electrocatalytic performance were constructed. A batch of aerogel catalysts with outstanding catalytic performance and stability for the electrochemical oxygen evolution reaction (OER) were discovered. Amorphous Fe3Co3Ni2-(oxy)hydroxide with excellent electrocatalytic performance (Tafel slope of 49 mV dec-1 and eta 100 of 421.48 +/- 6.41 mV) was found to achieve a mass activity of 611.23 A/gmetal at 1.63 V (vs RHE). X-ray photoemission spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) studies reveal that the incorporation of a third atom (Ni and Ce) into the binary aerogels enlarges the Co-O atomic distance and reduces the average valence state of Co, which in turn speed up the oxygen evolution reaction kinetics. This work puts forward a strategy for high-throughput synthesis and screening of electrocatalysts and provides valuable data sets for future machine learning and prediction of high-performance electrocatalysts. KEYWORDS: high-throughput synthesis, aerogel, oxygen evolution reaction, electrocatalysts, material genome

high-throughput synthesis aerogel oxygen evolution reaction electrocatalysts material genome

SCI

English

First ; Corresponding

Key-Area Research and Development Program of Guangdong Province[2019B010941001] ; Shenzhen Fundamental Research Funding["JCYJ20190809164209485","JCYJ20210324115809026","20200925154115001","JCYJ20200109141216566"] ; National Key Research and Development Project[2022YFA1503900] ; Department of Science and Technology of Guangdong Province[2017ZT07Z479]

Chemistry

Chemistry, Physical

WOS:000904975300001

AMER CHEMICAL SOC

Web of Science

1.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
2.ASTAR, Inst Chem & Engn Sci, Singapore 627833, Singapore
3.Southern Univ Sci & Technol, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China

Chen, Zhuyang,Xu, Chen,Zhao, Fu,et al. High-Performance Oxygen Evolution Reaction Electrocatalysts Discovered via High-Throughput Aerogel Synthesis[J]. ACS Catalysis,2022.

Chen, Zhuyang.,Xu, Chen.,Zhao, Fu.,Xi, Shibo.,Li, Weixuan.,...&Xiang, X-D.(2022).High-Performance Oxygen Evolution Reaction Electrocatalysts Discovered via High-Throughput Aerogel Synthesis.ACS Catalysis.

Chen, Zhuyang,et al."High-Performance Oxygen Evolution Reaction Electrocatalysts Discovered via High-Throughput Aerogel Synthesis".ACS Catalysis (2022).