Mo掺杂的Ni-B非晶态合金的制备及催化硼氢化钠水解制氢  

Fabrication of Amorphous Ni-W-B Alloy and Catalytic Sodium Borohydride Hydrolysis for Hydrogen Generation

作　　者：李赛[1] 王丽娜[1] 

机构地区：[1]西安科技大学化学与化工学院,陕西西安710054

出　　处：《山东化工》2016年第12期4-6,共3页Shandong Chemical Industry

基　　金：国家自然科学基金(21543004);陕西省教育厅专项科研计划项目(2013JK0677)

摘　　要：采用化学还原法制备了非晶态Mo-Ni-B催化剂,并用于硼氢化钠水解制氢。通过XRD、SEM、EDX测试证明,Mo-Ni-B为非晶态、均匀的小球状纳米颗粒,平均粒径约30-40nm。硼氢化钠水解制氢性能表明,Mo掺杂后Ni-B的催化活性有所改善,当Mo与Ni的物质的量比为0.04时,该催化剂表现出最好的催化活性。影响因素实验证明,Mo-Ni-B催化Na BH4水解制氢,其产氢速率与体系温度及催化剂用量呈正比,但受硼氢化钠浓度的影响不大。Mo-Ni-B amorphous alloy powders are synthesized by chemical reduction method,and used in producing hydrogen from NaBH4 solution.The catalyst powders are characterized by X-ray diffraction,scanning electron microscopy and energy-dispersive X-ray spectroscopy.The results shown that the Mo-Ni-B are amorphous and uniform particles,the average particle size is about 30-40 nm.The hydrolysis of NaBH4 on Mo-Ni-B catalyst reveals that the reaction temperature and catalyst amount has a significant effect on hydrogen generation rate.However,the NaBH4 concentration has little effect.

关 键 词：硼氢化钠 制氢 非晶态合金 

分 类 号：TM911.4[电气工程—电力电子与电力传动]