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

Author:

Loh Adeline,Trudgeon David P.,Li Xiaohong,Liu Mao-Cheng,Kong Ling-Bin,Walsh Frank C.

Abstract

AbstractOxygen 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 MnOxcombined 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−2over 40 h in 4 M NaOH + 0.3 M ZnO at 333 K.

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

Reference58 articles.

1. Blurton, F. K. & Sammells, A. F. Metal/air batteries: Their status and potential—a review. J. Power Sources 4, 263–279. https://doi.org/10.1016/0378-7753(79)80001-4 (1979).

2. Haas, O., Holzer, F., Müller, K. & Müller, S. Metal/air batteries: the zinc/air case. In Handbook of Fuel Cells Fundamentals Technology and Applications (eds Vielstich, W. et al.) 382–408 (2003).

3. Kraytsberg, A. & Ein-Eli, Y. The impact of nano-scaled materials on advanced metal–air battery systems. Nano Energy 2, 468–480. https://doi.org/10.1016/j.nanoen.2012.11.016 (2013).

4. Hamlen, R. P. & Atwater, T. B. Metal/air batteries. In Handbook of Batteries (eds Linden, D. & Reddy, T. B.) 38.1-38.29 (McGraw-Hill Companies, 2002).

5. Pei, P. et al. High performance zinc air fuel cell stack. J. Power Sources 249, 13–20. https://doi.org/10.1016/j.jpowsour.2013.10.073 (2014).

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