|
Type |
Poster Presentation |
Area |
Electrochemistry |
Room No. |
Event Hall |
Time |
4월 20일 (금요일) 11:00~12:30 |
Code |
ELEC.P-598 |
Subject |
Cobalt-manganese oxide mesospheres supported on carbon as a highly efficient oxygen reduction/evolution electrocatalyst |
Authors |
Sunguk Noh, Jun Ho Shim* Department of Chemistry, Daegu University, Korea |
Abstract |
The development of efficient and stable bifunctional catalysts towards the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is critical consideration in some applications such as secondary zinc-air batteries, and electrochemical water splitting. In this presentation, a simple chemical approach for synthesizing porous cobalt mesosphere and its hybrid structure with manganese nanostructures is reported. The cobalt mesosphere and related hybrid structures were characterized by X-ray diffraction, scanning and transmission electron microscopy, and UV-vis spectroscopy. The XRD studies confirm the successful synthesis of hybrid structure of cobalt mesospheres with manganese nanostructures. The formation of cobalt-manganese structure is through stable and simple method with hollow cobalt mesospheres as the templates in manganese coating synthesis. The cobalt-manganese nanostructures can be used as supportive electrocatalysts to exhibit enhanced catalytic activities in the ORR and OER. The electrocatalytic activity of the cobalt-manganese for ORR and OER in alkaline media was investigated by rotating disk electrode, rotating-ring disk electrode, and cyclic voltammetry. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1D1A1B03930895). |
E-mail |
tmddnr1919@naver.com |
|