화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2016년 가을 (10/26 ~ 10/28, 제주국제컨벤션센터(ICCJEJU))
권호 20권 2호
발표분야 전기화학_포스터
제목 Application of Graphene Foam on Flow Field of Bipolar Plates in Polymer Electrolyte Membrane Fuel Cells
초록 Graphene foam is three-dimensional graphene-based material which is fabricated using chemical-vapour deposition on nickel foam, followed by etching away nickel foam. It is combined material which has advantage of graphene and structural characteristics of metal foam. Various kinds of metal foam as alternative of flow field have been developed because high porosity distributes reactants on entire area and removes generated water. However, metal foam is highly susceptible to corrosion in polymer electrolyte membrane fuel cell operation condition. In this work, we proposed graphene foam as flow field to investigate the effect of graphene foam on enhanced mass transport. Single cell test of graphene foam flow field showed the enhancement of mass transport, leading to increased performance at high current densities. Also oxygen gain and electrochemical impedance spectroscopy revealed decreased mass transport resistance compared with conventional MEA.
저자 박지은1, 김성준1, 강선영2, 김정우2, 조용훈2, 성영은1
소속 1서울대, 2강원대
키워드 Polymer electrolyte membrane fuel cell; Graphene foam; Flow field; Bipolar plates; Membrane electrode assembly
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