以Fe3O4微球为模板,PdCl2乙醇胶体溶液为活化剂,乙醇为化学镀溶剂,制备了磁性Fe3O4/Ni-B核壳催化剂.采用扫描电镜、能谱仪和X射线光电子能谱仪表征了Fe3O4/Ni-B的表面形貌、组成及各元素在镀层中的存在形式.以Fe3O4/Ni-B为催化剂,对NaOH和NaBH4的混合液进行水解产氢试验.研究了化学镀时所用镀液的体积以及混合液中NaOH和NaBH-L4的质量分数对Fe3O4/Ni-B催化产氢性能的影响.结果表明,以0.4 mL化学镀液制备的Fe3O4/Ni-B为催化剂,混合液中NaOH和NaBH-4的质量分数分别为10％和2％时,Fe3O4/Ni-B的催化产氢性能最好.
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