Effects of surface treatment on the electrocatalytic performance of Spinel NiCo2O4 and Carbon Nanotubes composite catalysts

DOI

10.2991/ifeesm-17.2018.371How to use a DOI?

Keywords

Surface treatment; Spinel NiCo2O4; Carbon Nanotubes; Oxygen reduction reaction; Oxygen evolution reaction; Electrocatalyst.

Abstract

How to develop high-efficient and low-cost electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is urgent in fuel cell and metal-air batteries. What we are going to introduce is how to improve the performance of catalyst for ORR and OER under different acid treatment conditions. Spinel NiCo2O4 and carbon nanotubes (NC-0) composites have been synthesized via a facile hydrothermal method without using high temperature and the result samples were treated using nitric acid for 1h, 2h and 3h which are named NC-x (x=1,2 and 3) respectively. Comparing the untreated composite (NC-0) with NC-3, the ORR current density is increased from 2.1 mA / cm2 to 4.2 mA / cm2 and OER current density is reduced from 13.3 mA / cm2 to 8.0 mA / cm2. The result would enlighten and promote directional synthesis of different performance electrochemical catalyst.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yangbo Chen
AU  - Yuwei Tang
AU  - Zhoumiao Liao
AU  - Xiaoyang Chen
AU  - Juan Wang
PY  - 2018/02
DA  - 2018/02
TI  - Effects of surface treatment on the electrocatalytic performance of Spinel NiCo2O4 and Carbon Nanotubes composite catalysts
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 2069
EP  - 2075
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.371
DO  - 10.2991/ifeesm-17.2018.371
ID  - Chen2018/02
ER  -