State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, Zhejiang, 310014, P. R. China.
Chem Asian J. 2019 Oct 1;14(19):3397-3403. doi: 10.1002/asia.201901058. Epub 2019 Sep 13.
Pt-based nanomaterials play important roles in the catalytic process toward oxygen reduction reaction (ORR). Rationally regulating the composition and morphology of the catalysts could enhance the catalytic performance effectively. In this work, an effective method is presented to synthesize Pd@ mesoporous PtRu nanorattles (Pd@mPtRu NRs) containing a Pd core and a mesoporous PtRu shell. Owing to the unique structure and PtRu alloy composition, the prepared Pd@mPtRu NRs exhibit an enhanced catalytic performance and durability toward ORR relative to mesoporous PtRu hollow nanoparticles (mPtRu HNs) and commercial Pt/C. The proposed approach may provide a general way to synthesize Pt-based yolk-shell structures with different compositions.
基于铂的纳米材料在氧还原反应（ORR）的催化过程中起着重要作用。合理调节催化剂的组成和形态可以有效地提高催化性能。在这项工作中，提出了一种有效的方法来合成含有 Pd 核和介孔 PtRu 壳的 Pd@介孔 PtRu 纳米笼（Pd@mPtRu NRs）。由于独特的结构和 PtRu 合金组成，与介孔 PtRu 空心纳米粒子（mPtRu HNs）和商业 Pt/C 相比，所制备的 Pd@mPtRu NRs 对 ORR 表现出增强的催化性能和耐久性。所提出的方法可能为合成具有不同组成的基于 Pt 的蛋黄壳结构提供一种通用方法。
