나노파우더형 Co/Al₂O₃ 촉매를 활용한 NaBH₄ 가수분해반응 특성 연구

• Published in: 한국수소및신에너지학회논문집 Vol. 33; no. 4; pp. 343 - 352
• Main Authors: 윤성모(SEONG MO YUN), 이태훈(TAE HOON LEE), 오택현(TAEK HYUN OH)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 01.08.2022
• Subjects: 기계공학; Apparent activation energy(겉보기 활성화 에너지); Catalyst(촉매); Sodium borohydride(수소화붕소나트륨); Reduction(환원); Fuel composition(연료 조성); Catalyst support(촉매지지체)
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/KHNES.2022.33.4.343

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. KCI Citation Count: 0