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  • 05월 20일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제125회 대한화학회 학술발표회 및 총회 Electrochemical Synthesis of Multimetallic Nanoparticles and Their Applications in Alkaline Oxygen Reduction Catalysis

등록일
2020년 2월 6일 12시 16분 46초
접수번호
0779
발표코드
ELEC.P-912 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
온라인 PDF 제출
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Joon Ho Park, Hyun Seo Ahn*
Department of Chemistry, Yonsei University, Korea

Conventional solvothermal synthesis of nanoparticles relies on the metal-ligand chemistry in the control of size and exposed facets. Here, we report a novel electrochemical route in direct synthesis of surfactant-free multimetallic nanoparticles composed of Cu, Pd, Ag, Pt and Au. The synthesis occurs by electrolysis of an aqueous nanodroplet containing metal precursor ions, and the stoichiometry inside the nanodroplet precisely translates to the synthesized nanoparticle. The synthesized nanoparticles are evaluated as electrocatalysts for alkaline oxygen reduction. Particularly, Cu0.75Pd0.25 and Cu0.375Pd0.25Pt0.375 nanoparticles demonstrate catalytic performance comparable to the benchmark catalyst Pt/C and boast far superior durability.


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