Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

MnO2 Nanotubes Synthesized with One-step Hydrothermal Method as Efficient Bi-functional Cathode Catalyst for a Rechargeable Zinc-air Battery

Authors
Haoran Li, Xuemei Li, Qi Nie, Keryn Lian, Jinli Qiao
Corresponding Author
Haoran Li
Available Online April 2017.
DOI
https://doi.org/10.2991/iceesd-17.2017.168How to use a DOI?
Keywords
Bifunctional catalyst, MnO2 nanotube catalysts, rechargeable zinc-air battery.
Abstract
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.
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This is an open access article distributed under the CC BY-NC license.

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Proceedings
2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
Part of series
Advances in Engineering Research
Publication Date
April 2017
ISBN
978-94-6252-328-9
ISSN
2352-5401
DOI
https://doi.org/10.2991/iceesd-17.2017.168How to use a DOI?
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  - 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
PB  - Atlantis Press
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  -