Synthesis of Pd-Based Bimetallic Nanoparticles and Their Effective Electrocatalytic Properties

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Surveys from Asia Pub Date : 2021-05-22 DOI:10.1007/s10563-021-09338-4

Ji Xiang, Fan Ju, Man Sun, Hao Jin, Wenjie Cai, Jing Lin, Yanzhen Lu, Xiongzi Dong, Huaze Dong, Fankuo Wang

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引用次数: 0

Abstract

In this work, we developed a simple and effective one-pot method to synthesize the Pd-based bimetallic nanoparticles (NPs) in the presence of polyvinylpyrrolidone (PVP). By using high-resolution transmission electron microscopy (HRTEM), energy-dispersive spectrometry (EDS) mapping and X-ray diffraction (XRD), the morphologies and compositions of the as-prepared bimetallic NPs were investigated in detail. Furthermore, this approach was also used to achieve the highly dispersive Pd-based bimetallic NPs directly on the carbon black. Significantly, the as-obtained carbon-supported Pd-based bimetallic NPs showed excellent electrocatalytic activity for the methanol oxidation. Among the Pd-based bimetallic NPs and the commercial Pd–C, the PdPt–C displayed the best electrocatalytic activity and stability, which may be mainly attributed to the specific nanostructure and the synergetic effect between Pt and Pd atoms.

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钯基双金属纳米颗粒的合成及其有效电催化性能

本文研究了一种在聚乙烯吡咯烷酮(PVP)存在下合成pd基双金属纳米粒子(NPs)的方法。利用高分辨率透射电子显微镜(HRTEM)、能谱仪(EDS)和x射线衍射仪(XRD)对制备的双金属NPs的形貌和组成进行了详细的研究。此外，该方法还被用于直接在炭黑上制备高分散性的pd基双金属NPs。值得注意的是，所获得的碳负载的pd基双金属NPs对甲醇氧化表现出优异的电催化活性。在钯基双金属NPs和商品钯- c中，钯- c表现出最好的电催化活性和稳定性，这可能主要归功于其特殊的纳米结构以及Pt和Pd原子之间的协同作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Catalysis Surveys from Asia 化学-物理化学

CiteScore

4.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Early dissemination of important findings from Asia which may lead to new concepts in catalyst design is the main aim of this journal. Rapid, invited, short reviews and perspectives from academia and industry will constitute the major part of Catalysis Surveys from Asia . Surveys of recent progress and activities in catalytic science and technology and related areas in Asia will be covered regularly as well. We would appreciate critical comments from colleagues throughout the world about articles in Catalysis Surveys from Asia . If requested and thought appropriate, the comments will be included in the journal. We will be very happy if this journal stimulates global communication between scientists and engineers in the world of catalysis.