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      SCOPUS KCI등재

      Co-P-B/FeCrAlloy 촉매를 이용한 NaBH_4 가수분해 반응 = NaBH_4 Hydrolysis Reaction Using Co-P-B Catalyst Supported on FeCrAlloy

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      https://www.riss.kr/link?id=A99595184

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      다국어 초록 (Multilingual Abstract)

      Properties of NaBH_4 hydrolysis reaction using Co-P-B/FeCrAlloy catalyst and the catalyst durability were studied. Co-P-B/FeCrAlloy catalyst showed low activation energy such as 25.2 kJ/mol in 5 wt% NaBH_4 solution, which was similar that of noble metal catalyst. The activation energy increased as the NaBH_4 concentration increased. Formation of gel at high concentration of NaBH_4 seriously affected hydrogen evolution rate and the catalyst durability. The catalyst loss decreased as reaction temperature increased due to lower gel formation when the concentration of NaBH_4 was over 20 wt%. Considering hydrogen generation rate and durability of catalyst, the catalyst supported with FeCrAlloy heat-treated at 1000℃ without ultra vibration during dipping and calcination after catalyst dipping was best catalyst. To use catalyst more than three times in 25 wt% NaBH_4 solution, it should be reacted at higher temperature than 60℃.
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      Properties of NaBH_4 hydrolysis reaction using Co-P-B/FeCrAlloy catalyst and the catalyst durability were studied. Co-P-B/FeCrAlloy catalyst showed low activation energy such as 25.2 kJ/mol in 5 wt% NaBH_4 solution, which was similar that of noble met...

      Properties of NaBH_4 hydrolysis reaction using Co-P-B/FeCrAlloy catalyst and the catalyst durability were studied. Co-P-B/FeCrAlloy catalyst showed low activation energy such as 25.2 kJ/mol in 5 wt% NaBH_4 solution, which was similar that of noble metal catalyst. The activation energy increased as the NaBH_4 concentration increased. Formation of gel at high concentration of NaBH_4 seriously affected hydrogen evolution rate and the catalyst durability. The catalyst loss decreased as reaction temperature increased due to lower gel formation when the concentration of NaBH_4 was over 20 wt%. Considering hydrogen generation rate and durability of catalyst, the catalyst supported with FeCrAlloy heat-treated at 1000℃ without ultra vibration during dipping and calcination after catalyst dipping was best catalyst. To use catalyst more than three times in 25 wt% NaBH_4 solution, it should be reacted at higher temperature than 60℃.

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