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 3; Trudgeon, David P.3; Li, Xiaohong 3; Liu, Mao-Cheng 2; Kong, Ling-Bin 2; Walsh, Frank C.1
刊名	SCIENTIFIC REPORTS
	2022-04-23
卷号	12 期号:1
ISSN号	2045-2322
DOI	10.1038/s41598-022-10671-5
英文摘要	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.
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PORTFOLIO
WOS记录号	WOS:000785968500029
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158520]
专题	材料科学与工程学院
作者单位	1.Univ Southampton, Dept Mech Engn, Electrochem Engn Lab, Energy Technol Grp, Southampton SO17 1BJ, Hants, England 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 3.Univ Exeter, Coll Engn Math & Phys Sci, Renewable Energy Grp, Penryn TR10 9FE, Cornwall, 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).