Selection of oxygen reduction catalysts for secondary tri-electrode zinc-air batteries

doi:10.1038/s41598-022-10671-5

	Selection of oxygen reduction catalysts for secondary tri-electrode zinc-air batteries
	Loh, Adeline 1; Trudgeon, David P.1; Li, Xiaohong 1; Liu, Mao-Cheng2 ; Kong, Ling-Bin2 ; Walsh, Frank C.3
	2022-04-23
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	12 期号:1
摘要	Oxygen reduction reaction (ORR) electrocatalysts, which are highly efficient, low-cost, yet durable, are important for secondary Zn-air cell applications. ORR activities of single and mixed metal oxide and carbon electrocatalysts were studied using rotating disc electrode (RDE) measurements, Tafel slope and Koutecky-Levich plots. It was found that MnOx combined with XC-72R demonstrated high ORR activity and good stability-up to 100 mA cm(-2). The performance of the selected ORR electrode and a previously optimised oxygen evolution reaction (OER) electrode was thereafter tested in a custom-built secondary Zn-air cell in a tri-electrode configuration, and the effects of current density, electrolyte molarity, temperature, and oxygen purity on the performance of the ORR and OER electrode were investigated. Finally, the durability of the secondary Zn-air system was assessed, demonstrating energy efficiencies of 58-61% at 20 mA cm(-2) over 40 h in 4 M NaOH + 0.3 M ZnO at 333 K.
DOI	10.1038/s41598-022-10671-5
收录类别	SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000785968500029
出版者	NATURE PORTFOLIO
来源库	WOS
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158520
专题	材料科学与工程学院
通讯作者	Li, Xiaohong
作者单位	1.Univ Exeter, Coll Engn Math & Phys Sci, Renewable Energy Grp, Penryn TR10 9FE, Cornwall, England; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 3.Univ Southampton, Dept Mech Engn, Electrochem Engn Lab, Energy Technol Grp, Southampton SO17 1BJ, Hants, England
推荐引用方式 GB/T 7714	Loh, Adeline,Trudgeon, David P.,Li, Xiaohong,et al. Selection of oxygen reduction catalysts for secondary tri-electrode zinc-air batteries[J]. SCIENTIFIC REPORTS,2022,12(1).
APA	Loh, Adeline,Trudgeon, David P.,Li, Xiaohong,Liu, Mao-Cheng,Kong, Ling-Bin,&Walsh, Frank C..(2022).Selection of oxygen reduction catalysts for secondary tri-electrode zinc-air batteries.SCIENTIFIC REPORTS,12(1).
MLA	Loh, Adeline,et al."Selection of oxygen reduction catalysts for secondary tri-electrode zinc-air batteries".SCIENTIFIC REPORTS 12.1(2022).