借助于一种全新的表面活性剂N,N-dimethyloctadecylammonium bromide acetate sodium(OTAB-Na),成功实现了对小尺寸钯纳米粒子微结构的控制。通过对合成条件的微扰,高度均匀且分散性良好的枝化结构和凹面体结构的钯纳米粒子被成功地制备。催化测试(利用氨硼烷作为氢化试剂来还原4-硝基苯酚为4-胺基苯酚)发现,钯纳米粒子的催化活性与其微观纳米结构相关,其中枝化结构的钯纳米粒子表现出了更为突出的催化性能。 With the help of a new surfactant N, N-dimethyloctadecylammonium bromide acetate sodium (OTAB-Na), the microstructure of small size Pd nanoparticles has been successfully controlled. Palladium nanoparticles with highly uniform and well-dispersed branched and concave structures were successfully prepared by perturbation of the synthesis conditions. Catalytic testing (reduction of 4-nitrophenol to 4-aminophenol using ammonia borane as a hydrogenation reagent) found that the catalytic activity of palladium nanoparticles correlates with its microscopic nanostructures, where the branched nanostructures exhibit more For outstanding catalytic performance.