121st General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code MAT.P-536
Subject Catalytic Performance of Mn-Ni Layered Double Hydroxide Nanoplates for Oxygen Evolution Reaction
Authors Jae Kyeom Kim, Min Hyung Lee*
Department of Applied Chemistry, Kyung Hee University, Korea
Abstract Layered double hydroxide (LDH) nanomaterials can be synthesized in various combinations of binary metals, resulting tunable catalytic properties and performance. Due to these advantages, transition metal based LDH nanomaterials have been caught great attentions as catalysts for various reaction such as oxygen evolution reaction (OER), CO2 reduction reaction (CO2RR), and oxygen reduction reaction (ORR), etc. In this project, we synthesized Mn-Ni LDH using simple solution synthetic process, and carried out electrochemical evaluations of the LDH nanoplates for OER. Furthermore, intercalated halogen anions into Mn-Ni LDH nanoplates were switched by anion exchanges and anion-dependent OER catalytic performance was compared. Mn-Ni LDH nanoplates showed on-set potential of 1.57 V vs. RHE, and overpotential to reach current density of 10 mA/cm2 is about 400 mV vs RHE, which is comparable performance to previous reported transition metal based LDH nanoplates for OER.
E-mail kimjk915@khu.ac.kr