화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2021년 가을 (11/03 ~ 11/05, 대구 엑스코(EXCO))
권호 25권 2호
발표분야 [무기재료] 방사광가속기 기반 고성능 무기신소재 개발 및 분석
제목 Unveiling the oxygen evolution catalytic origin of inorganic based OER electrocatalyst by operando X-ray absorption spectroscopy characterization
초록 The water-splitting reaction, including the oxygen evolution reaction offers promising solutions to address the global energy scarcity and the associated environmental issues. However, the lack of deep insight into the reaction mechanisms and clear identification of the catalytic active sites hinder any breakthrough for the development of efficient electrocatalysts with high performance and durability. Operando characterization techniques allowing in situ monitoring the surface oxidation state and local atomic-structure transformation are capable of probing the active sites and promoting the fundamental understanding of the reaction mechanism in these systems. Herein, the powerful operando X-ray absorption spectroscopy characterization technique in identifying the active sites and capturing the geometric structure, oxidation state, and local atomic-structure evolution of the catalysts during water electrolysis are introduced by using the inorganic-based OER electrocatalysts.
저자 김명진
소속 경북대
키워드 oxygen evolution reaction; Operando X-ray absorption spectroscopy
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