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제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and characterization of graphene based on Pt nanoparticles for electrocatalytic oxidation of formic acid

등록일
2012년 2월 15일 09시 55분 35초
접수번호
0378
발표코드
ELEC.P-1232 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
전기화학
저자 및
공동저자
김민수, 김대근, 전승원
전남대학교 화학과, Korea
The direct ethanol fuel cell (DEFCs) has received much attention due to their inherent high specific energy. We have studied Pt nanoparticles monodispersed on graphene oxide (GO) surface and were successfully prepared by the chemical reaction between K2PtCl6 and GO. As-prepared catalysts were characterized by SEM, XPS and TEM. Highly dispersed Pt nanoparticles were observed on the graphene oxide composites that reduced by NaBH4. The GO-Pt nanoparticles in H2O were ultrasonically dispersed and loading onto glassy carbon electrode for formic acid oxidation, have been investigated using cyclic voltammetry and chronoamperometry methods. For the comparison the catalyst was employed to electrochemical formic acid oxidation in 0.5 M H2SO4 and 0.5 M NaOH. The results show a significant electrolyte effect on formic acid oxidation in H2SO4 solution. This simple and straight forward method is of significance for the facile preparation metal-carbon nanocatalyst with high catalytic activity on proper supporting materials. The proposed catalyst could be used in DFAFCs successfully

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