Novel PtCo nanoflowers were synthesized using oleylamine-oleic acid system via one-pot chemical reaction. The difference in morphology with different amount of oleic acid revealed that the formation of the PtCo nanoflowers was attributed to the precipitation effect of oleic acid both in nucleation stage and growth process. The obtained PtCo nanoflowers show excellent performance in catalytic hydrogenation of nitrobenzene, when compared with PtCo nanoparticles and commercial Pt/C. The high activity is attributed to the porous structure formed by assembling of smaller nanoparticles and electron interaction of Co to Pt.

中文翻译：

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PtCo纳米花的合成及其对硝基苯加氢的催化活性

通过一锅化学反应，使用油胺-油酸体系合成了新型的PtCo纳米花。不同量油酸的形态学差异表明，PtCo纳米花的形成与成核阶段和生长过程中油酸的沉淀作用有关。与PtCo纳米粒子和商业化的Pt / C相比，所获得的PtCo纳米花在硝基苯的催化加氢中表现出优异的性能。高活性归因于通过组装较小的纳米颗粒以及Co与Pt的电子相互作用形成的多孔结构。