(A) study on the design of one-dimensional nanomaterial based catalyst system for high-performance energy conversion and storage고성능 에너지 변환 및 저장을 위한 일차원 나노소재 기반 촉매 시스템 설계 및 전기화학적 특성 평가에 대한 연구

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With the increasing demand and interest in large-capacity energy storage and eco-friendly energy materials, energy technologies such as metal-air cells, fuel cells, and water electrolyzers are continuously developing. However, low energy efficiency and short lifespan characteristics due to high overpotential are considered as major problems. Electrochemical catalyst technology to increase such efficiency is a very important factor, and among them, oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are the key reactions, and it is necessary to apply a catalyst having high catalytic properties and good sustainability. In this dissertation, as a method to develop a catalyst with improved performance, a one-dimensional (1D) nanostructure is applied to the catalyst design, and its electrochemical properties are evaluated to confirm the catalytic effect. Besides, finally, by introducing a one-dimensional carbon nanofiber-based membrane that can play the role of a current collector while having catalytic properties, we propose an electrode material development technology using a catalyst-current collector, and intended to be applied to an energy storage system (zinc-air battery) and assess the feasibility in the practical energy storage system.
Advisors
Kim, Il-Dooresearcher김일두researcher
Description
한국과학기술원 :신소재공학과,
Country
한국과학기술원
Issue Date
2021
Identifier
325007
Language
eng
Article Type
Thesis(Ph.D)
URI
http://hdl.handle.net/10203/294706
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=956759&flag=dissertation
Appears in Collection
MS-Theses_Ph.D.(박사논문)
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