Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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A Study on Characteristics of NaBH4 Hydrolysis using Co/Al2O3 Nanopowder Catalyst

나노파우더형 Co/Al2O3 촉매를 활용한 NaBH4 가수분해반응 특성 연구

  • YUN, SEONG MO (Department of Mechanical Engineering, Changwon National University) ;
  • LEE, TAE HOON (Department of Smart Manufacturing Engineering, Changwon National University) ;
  • OH, TAEK HYUN (Department of Mechanical Engineering, Changwon National University)
  • 윤성모 (창원대학교 기계공학부) ;
  • 이태훈 (창원대학교 스마트제조융합협동과정) ;
  • 오택현 (창원대학교 기계공학부)
  • Received : 2022.07.25
  • Accepted : 2022.08.22
  • Published : 2022.08.30
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Abstract

Co/Al2O3 nanopowder was used as a catalyst to investigate the effect of catalyst support, reduction temperature, sodium borohydride (NaBH4) concentration, sodium hydroxide (NaOH) concentration, and reaction temperature on the characteristics of NaBH4 hydrolysis. The Co/Al2O3 nanopowder showed a high catalytic activity among various catalysts. Catalyst reduction at 250℃ exhibited a relatively good activity. The activity decreased with an increase in the NaBH4 concentration. Conversely, the activity increased and then decreased with an increase in the NaOH concentration. Additionally, the activity increased with an increase in the reaction temperature. The value of apparent activation energy was 40.81 kJ/mol, which was lower than the other Co-based catalysts. Thus, Co/Al2O3 nanopowder catalyst can be widely used for NaBH4 hydrolysis owing to its superior catalytic activity.

Keywords

Acknowledgement

이 논문은 2021년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원(No. 2021R1F1A1046889)과 2021년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원(No. 20214000000480, 청정가스복합화력발전 핵심요소기술 및 국산화 전문인재양성)을 받아 수행된 연구입니다.

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