한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제33권2호
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  • Pages.148-157
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  • 2022
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
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Mg2NiHx-CaF2 수소 저장 복합체의 물질 전과정 평가

Material Life Cycle Assessment on Mg2NiHx-CaF2 Composites

  • 황준현 (한국교통대학교 응용화학에너지공학부 에너지소재공학전공) ;
  • 신효원 (한국교통대학교 응용화학에너지공학부 에너지소재공학전공) ;
  • 홍태환 (한국교통대학교 응용화학에너지공학부 에너지소재공학전공)
  • HWANG, JUNE-HYEON (Department of Energy Materials and Engineering, Korea National University of Transportation) ;
  • SHIN, HYO-WON (Department of Energy Materials and Engineering, Korea National University of Transportation) ;
  • HONG, TAE-WHAN (Department of Energy Materials and Engineering, Korea National University of Transportation)
  • 투고 : 2021.12.28
  • 심사 : 2022.02.14
  • 발행 : 2022.04.30
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초록

Research on hydrogen storage is active to properly deal with hydrogen, which is considered a next-generation energy medium. In particular, research on metal hydride with excellent safety and energy efficiency has attracted attention, and among them, magnesium-based hydrogen storage alloys have been studied for a long time due to their high storage density, low cost, and abundance. However, Mg-based alloys require high temperature conditions due to strong binding enthalpy, and have many difficulties due to slow hydrogenation kinetics and reduction in hydrogen storage capacity due to oxidation, and various strategies have been proposed for this. This research manufactured Mg2Ni to improve hydrogenation kinetics and synthesize about 5, 10, 20 wt% of CaF2 as a catalyst for controlling oxidation. Mg2NiHx-CaF2 produced by hydrogen induced mechanical alloying analyzed hydrogenation kinetics through an automatic PCT measurement system under conditions of 423 K, 523 K, and 623 K. In addition, material life cycle assessment was conducted through Gabi software and CML 2001 and Eco-Indicator 99' methodology, and the environmental impact characteristics of the manufacturing process of the composites were analyzed. In conclusion, it was found that the effects of resource depletion (ARD) and fossil fuels had a higher burden than other impact categories.

키워드

과제정보

본 연구는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구(2019R1F1A1041405)와 교육부에서 자금을 조달받은 한국기초과학원 보조금(2019R1A6C1010047)과 중소기업 창업부가 부여한 재원(S3045542)에 의해 작성되었으며, 이에 감사드립니다.

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