Titanium dioxide as support material for Pt1Pd3 toward methanol oxidation

被引：10

作者：

Xu, Mengmeng ^{[1
]}

Lei, Shuangshuang ^{[1
]}

Jin, Changchun ^{[1
]}

机构：

[1] Changzhou Univ, Dept Appl Chem, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Changzhou 213164, Jiangsu, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2021年 / 46卷 / 07期

关键词：

Pt(1)Pd3nanoparticles; Titanium dioxide; Support; Electrocatalytic activity; Methanol oxidation; PT-PD-ALLOY; OXYGEN REDUCTION REACTION; ELECTROCATALYTIC OXIDATION; FUEL-CELLS; NANOPARTICLES; CATALYSTS; TIO2; PERFORMANCE; BEHAVIOR; ETHANOL;

D O I：

10.1016/j.ijhydene.2020.11.101

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The electrocatalytic oxidation of methanol on the Pt1Pd3 nanoparticles supported on rutile TiO2 in alkaline solution is investigated. The Pt1Pd3 nanoparticles are prepared by the chemical co-reduction of the precursors of Pt and Pd and then loaded on TiO2. The Pt1Pd3 nanoparticles with sizes of about 2-4 nm and a certain degree of aggregation are dispersed on TiO2. The position and shape of the methanol oxidation peak on Pt1Pd3/TiO2 are more similar to those on Pt/TiO2 than those on Pd/TiO2, while Pt1Pd3/TiO2 exhibits higher catalytic activity, e.g., a significantly higher peak intensity, than Pt1Pd3/C, Pt/TiO2 and Pd/TiO2. This indicates the advantage of TiO2 as a support material and the strong synergy between the Pt1Pd3 and TiO2 and between the Pt and Pd. Moreover, Pt1Pd3/TiO2 has a high tolerance for the poisoning caused by CO. Rutile TiO2 is shown to be suitable as a support material for the Pt1Pd3 to achieve enhanced catalytic activity and stability. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：5390 / 5397

页数：8

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