121st General Meeting of the KCS

Type Poster Presentation
Area Electrochemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code ELEC.P-601
Subject Synthesis and characterization of silver-copper nanoparticles using reduced state carbon nanodots for electrocatalytic application
Authors Hoseop Im, Jun Ho Shim*
Department of Chemistry, Daegu University, Korea
Abstract Carbon nanodots (CNs), mainly consisting of a graphite structure or amorphous carbon core and carbonaceous surfaces with rich oxygen-containing groups, have attracted tremendous interest because of their unique properties, including high surface area, superior electro-optical properties, high water solubility, and high chemical stability. In this presentation, stable metallic nanoparticles/CNs composite (M/CNs) was prepared by using CNs as reducing and stabilizing agent. To the best of our knowledge, the use of CNs as reducing and stabilizing agents has rarely been reported in conjunction with their use in the fabrication of M nanoparticles (M = Ag, Cu, Co). The electrocatalytic activity of the M/CNs for oxygen reduction reaction in alkaline media was investigated by rotating disk electrode, and cyclic voltammetry. Indeed, the resultant M/CNs composite exhibited good catalytic activity for the reduction of oxygen, compared with the metallic nanoparticles synthesized by citrate reduction. The compositional/structural features are characterized by high-resolution transmission electron microscopy, scanning electron microscopy, Fourier transform infrared and UV-Vis spectroscopy. 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 si4032@naver.com