화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2019년 가을 (10/30 ~ 11/01, 제주국제컨벤션센터(ICC JEJU))
권호 23권 2호
발표분야 포스터_콜로이드·계면화학
제목 Tertiary Metal (Ni, Fe)-based Chalcogenides on Conductive Supports as Efficient Dual-Functional Electrocatalysts for Water Splitting
초록 The preparation of multinary metal chalcogenide nanocrystals, particularly those derived from first-row transition metal elements, is of considerable interest since these materials is not only cheap and abundant, but also exhibit improved electrocatalytic performance that would be as comparable as does IrO2 or RuO2. Herein, we develop a facile synthesis of tertiary metal (Ni and Fe)-based selenide (NixFe1-xSe2) nanocrystals with a homogeneous element distribution as well as uniform size and shape. Specifically, NixFe1-xSe2 nanocrystals are readily converted from the as-prepared Ni-Fe LDH with unique flower-like morphologies through a solution-based approach. The prepared NixFe1-xSe2 nanocrystals can be deposited on a variety of conductive supports, such as carbon fiber or nickel foil, to improve the catalytic performance and durability. Importantly, these materials can be rationally implemented as dual-functional catalysts for overall water-splitting, including HER and OER.
저자 김선철, MAI DUY HIEN, 유효종
소속 한양대
키워드 NiFeSe; tertiary chalcogenide; conductive support; dual functionality; water splitting
E-Mail hyojongchem@gmail.com