Herein, highly branched [email protected] core-shell nanoparticles ([email protected] NPs) were fabricated by a facile one-pot wet-chemical approach, where poly(ethyleneimine) (PEI) served as structure-directing and capping agents. Their structure, morphology and composition were mainly characterized by a set of techniques. And their growth mechanism was discussed in some detail. The prepared catalyst exhibited remarkable enhancement in catalytic activity of 4-nitrophenol (4-NP) reduction as a proof-of-concept application, surpassing commercial Pt black and home-made Ag NPs catalysts. Also, the as-obtained catalyst showed superior stability without sacrificing the catalytic activity. These observations endow the catalyst possibility for practical applications in nitrophenols environmental remediation.

本文中，通过一种简便的一锅湿化学方法制备了高度支化的[受电子邮件保护的]核壳纳米粒子（[受电子邮件保护的] NP），其中聚（乙烯亚胺）（PEI）作为结构导向剂和封端剂。它们的结构，形态和组成主要通过一套技术来表征。并对它们的生长机理进行了详细的讨论。所制备的催化剂在概念上的应用中显示出4-硝基苯酚（4-NP）还原催化活性的显着提高，超过了商业化的Pt黑和自制的Ag NPs催化剂。同样，所获得的催化剂在不牺牲催化活性的情况下显示出优异的稳定性。这些观察结果为催化剂在硝基苯酚环境修复中的实际应用提供了可能性。