MnO2 Nanotubes Synthesized with One-step Hydrothermal Method as Efficient Bi-functional Cathode Catalyst for a Rechargeable Zinc-air Battery
Haoran Li, Xuemei Li, Qi Nie, Keryn Lian, Jinli Qiao
Available Online April 2017.
- https://doi.org/10.2991/iceesd-17.2017.168How to use a DOI?
- Bifunctional catalyst, MnO2 nanotube catalysts, rechargeable zinc-air battery.
- This paper reports the preparation and electro-catalytic activity of MnO2 nanotube catalysts for both oxygen reduction reaction (ORR) and oxygen evolution reduction (OER) in alkaline media. The catalysts were synthesized by a simple hydrothermal method under controlling the different temperatures. Results of electrochemical characterization with emphasis on the activity of the catalyst are presented, which was demonstrated by cyclic voltammetry (CV) and linear sweep voltammetry (LSV) employing a rotating disk electrode (RDE) technique. The experiments show that the as-prepared MnO2 catalyst with nanotube structure exhibited high electro-catalytic activity and stability during battery discharge, charge and cycling processes in 6 M KOH electrolyte. The primary Zn-air battery showed a discharge peak power density ~293 mW cm-2, which corresponds to the energy density ~725 mA hg-1. The rechargeable Zn-air battery exhibited a small charge-discharge voltage polarization of ~0.7 V at 10 mA cm-2, high reversibility and stability over short charge and discharge cycles, and ~1.1 V for a long charge and discharge cycles test.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Haoran Li AU - Xuemei Li AU - Qi Nie AU - Keryn Lian AU - Jinli Qiao PY - 2017/04 DA - 2017/04 TI - MnO2 Nanotubes Synthesized with One-step Hydrothermal Method as Efficient Bi-functional Cathode Catalyst for a Rechargeable Zinc-air Battery BT - Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017) PB - Atlantis Press SP - 920 EP - 924 SN - 2352-5401 UR - https://doi.org/10.2991/iceesd-17.2017.168 DO - https://doi.org/10.2991/iceesd-17.2017.168 ID - Li2017/04 ER -