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Hydrolysis Reaction of NaBH4 Using Activated Cabon Supported Co-B/C, Co-P-B/C Catalyst

활성탄 담지 Co-B/C, Co-P-B/C 촉매를 이용한 NaBH4 가수분해 반응

  • Oh, Sohyeong (Department of Chemical Engineering, Sunchon National University) ;
  • Kim, Youkyum (Department of Chemical Engineering, Sunchon National University) ;
  • Bae, Hyojune (Department of Chemical Engineering, Sunchon National University) ;
  • Kim, Dongho (Department of Chemical Engineering, Sunchon National University) ;
  • Byun, Younghwan (Department of Chemical Engineering, Sunchon National University) ;
  • Ahn, Ho-Geun (Department of Chemical Engineering, Sunchon National University) ;
  • Park, Kwon-Pil (Department of Chemical Engineering, Sunchon National University)
  • 오소형 (순천대학교 화학공학과) ;
  • 김유겸 (순천대학교 화학공학과) ;
  • 배효준 (순천대학교 화학공학과) ;
  • 김동호 (순천대학교 화학공학과) ;
  • 변영환 (순천대학교 화학공학과) ;
  • 안호근 (순천대학교 화학공학과) ;
  • 박권필 (순천대학교 화학공학과)
  • Received : 2018.08.09
  • Accepted : 2018.09.12
  • Published : 2018.10.01

Abstract

Sodium borohydride, $NaBH_4$, shows a number of advantages as hydrogen source for portable proton exchange membrane fuel cells (PEMFCs). Properties of $NaBH_4$ hydrolysis reaction using activated carbon supported Co-B/C, Co-P-B/C catalyst were studied. BET surface area of catalyst, yield of hydrogen, effect of $NaBH_4$ concentration and durability of catalyst were measured. The BET surface area of carbon supported catalyst was over $500m^2/g$ and this value was 2~3 times higher than that of unsupported catalyst. Hydrogen generation of activated carbon supported catalyst was more stable than that of unsupported catalyst. The activation energy of Co-P-B/C catalyst was 59.4 kJ/mol in 20 wt% $NaBH_4$ and 14% lower than that of Co-P-B/FeCrAlloy catalyst. Catalyst loss on activated carbon supported catalyst was reduced to about 1/3~1/2 compared with unsupported catalyst, therefore durability was improved by supporting catalyst on activated carbon.

Keywords

Sodium borohydride;Carbon supported catalyst;Co-P-B;Durability;Fuel cell

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