Sun Jia, Hu Jun, Han Jie, Yuan Ganyin, Guo Rong
School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou , Jiangsu 225002 , P. R. China.
Langmuir. 2019 Oct 1;35(39):12704-12710. doi: 10.1021/acs.langmuir.9b02237. Epub 2019 Sep 18.
Noble metal-FeO dumbbell-like nanoparticles have aroused considerable attention because of their high potential as heterogeneous nanocatalysts. The designed synthesis of the advanced architecture of noble metal-FeO dumbbell-like nanoparticles with both improved catalytic activity and stability is still a challenge. Herein, through the combination of yolk@shell and dumbbell-like nanostructures, dumbbell-like Pt-FeO nanoparticles encapsulated in N-doped carbon hollow nanospheres (Pt-FeO@N-carbon) as a special yolk@shell nanostructure were developed. In comparison with Pt-FeO dumbbell-like nanoparticles, Pt-FeO@N-carbon yolk@shell nanoparticles showed improved catalytic activity and stability toward the liquid-phase 4-nitrophenol reduction and β-ionone oxidation, making them a promising candidate for catalysis applications.
贵金属 - FeO哑铃状纳米颗粒因其作为多相纳米催化剂的高潜力而引起了广泛关注。设计合成具有改进催化活性和稳定性的贵金属 - FeO哑铃状纳米颗粒的先进结构仍然是一个挑战。在此，通过将蛋黄@壳结构与哑铃状纳米结构相结合，开发出了封装在氮掺杂碳空心纳米球（Pt - FeO@N - 碳）中的哑铃状Pt - FeO纳米颗粒，作为一种特殊的蛋黄@壳纳米结构。与Pt - FeO哑铃状纳米颗粒相比，Pt - FeO@N - 碳蛋黄@壳纳米颗粒对液相4 - 硝基苯酚还原和β - 紫罗兰酮氧化表现出更高的催化活性和稳定性，使其成为催化应用的有前途的候选者。
