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NTIS 바로가기한국표면공학회지 = Journal of the Korean institute of surface engineering, v.50 no.5, 2017년, pp.322 - 331
이정훈 (한국기계연구원 부설 재료연구소 표면기술연구본부) , 장명제 (한국과학기술연합대학원대학교 신소재공학부) , 박유세 (한국기계연구원 부설 재료연구소 표면기술연구본부) , 최승목 (한국기계연구원 부설 재료연구소 표면기술연구본부) , 김양도 (부산대학교 재료공학과) , 이규환 (한국기계연구원 부설 재료연구소 표면기술연구본부)
Hydrogen evolution reaction(HER) was studied over
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핵심어 | 질문 | 논문에서 추출한 답변 |
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화석 연료를 대체할 에너지원에 요구되는 것은 무엇인가 | 1973년 1차 오일 쇼크와 1978년 2차 오일 쇼크 이후, 화석 연료 매장량의 한계와 더불어 화석 연료의 사용으로 발생된 이산화탄소로 인한 지구 온난화를 방지하기 위한 새로운 청정 에너지원에 대한 연구가 가속화 되었다. 화석 연료를 대체할 에너지원은 기술적으로 실현 가능해야 하고, 경제적이며, 에너지 생산 시 환경 오염 물질을 배출하지 않아야 한다. 많은 연구자들이 이에 따른 에너지원으로 바이오매스, 태양열, 풍력, 지열, 조력, 바이오가스 등을 제안하였고 현재까지 많은 연구를 진행해오고 있다. | |
물의 전기분해를 통한 수소 생산 방법 중 alkaline법의 장단점은 무엇인가 | 이로 인해 간단한 구성으로 고 순도의 수소를 대량으로 생산할 수 있는 물의 전기분해에 대한 연구가 많이 진행되고 있다[3, 4]. 물의 전기분해를 통한 수소 생산 방법 중 가장 기술적으로 성숙된 alkaline법은 낮은 전류밀도를 보여주며 내식성이 큰 전극이 필요하다는 단점이 있지만, 전극으로 상대적으로 저렴한 비 귀금속을 사용하고 장기간 사용할 수 있다는 장점으로 인해 상업적으로 가장 많이 사용되는 방법이다[5]. alkaline solution에서 전기 분해 반응이 진행되는 동안, anode와 cathode에서 다음과 같은 반응을 형성한다[6]. | |
전 세계 수소 생산의 97%를 차지하는 화석연료를 개질하여 수소를 생산하는 방법의 단점은 무엇인가 | 1%를 차지한다. 가장 일반적인 수소생산 방법인 화석 연료 개질은 매장량이 제한된 화석 연료를 사용하며, 화석연료 개질 시 이산화탄소가 함께 발생한다는 단점이 있다. 이로 인해 간단한 구성으로 고 순도의 수소를 대량으로 생산할 수 있는 물의 전기분해에 대한 연구가 많이 진행되고 있다[3, 4]. |
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