NaBH_4水解制氢泡沫镍载钌催化剂  

Ru-Ni foam catalyst for hydrogen generation from hydrolysis of sodium borohydride

作　　者：魏浩杰[1] 李山梅[1] 侯淼淼[1] 王新东[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083

出　　处：《北京科技大学学报》2010年第1期96-99,117,共5页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50528404)

摘　　要：研究了泡沫镍载钌催化剂制备过程中,RuCl3溶液浓度、pH值和浸渍时间对催化剂性能的影响,以及反应放热与体系温度之间的关系.结果表明,当0.2 g泡沫镍在浓度为0.025 mol.L-1、pH值为5～7的RuCl3溶液中浸渍25 h后,制备出的催化剂在质量分数15%NaBH4、3%NaOH溶液中的平均制氢速率可达到600 mL.min-1.用该催化剂在20 mL NaBH4碱性溶液中使用时,水解放出的热量可使反应体系温度达到80℃.The effects of RuCl3 solution concentration,pH value,and soaking time on the catalyst performance were studied during the preparation of Ru-Ni foam catalysts.The relationship between exothermic reaction and system temperature was also discussed.It was indicated that the average hydrogen generation rate of the catalyst prepared with 0.2 g of Ni foam in 0.025 mol·L-1 RuCl3 solution with pH values of 5 to 7 for a soaking time of 25 h was 600 mL·min-1 in the solution of 15% NaBH4 and 3% NaOH.When the catalyst was immersed in 20 mL of NaBH4 solution,the energy released form hydrolyzation could make the system temperature increase to 80 ℃.

关 键 词：催化剂 泡沫镍 氯化钌 硼氢化钠 制氢 

分 类 号：TM911.4[电气工程—电力电子与电力传动]