脉冲电沉积Pd-Ni合金纳米颗粒及其甲酸电催化氧化

doi:10.13208/j.electrochem.121205

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (1): 5-11. doi: 10.13208/j.electrochem.121205

脉冲电沉积Pd-Ni合金纳米颗粒及其甲酸电催化氧化

杨防祖^*，岳俊培，田中群，周绍民

厦门大学固体表面物理化学国家重点实验室，化学化工学院，福建厦门 361005

收稿日期:2012-12-05 修回日期:2013-01-11 出版日期:2014-02-25 发布日期:2014-02-24
通讯作者: 杨防祖 E-mail:fzyang@xmu.edu.cn
基金资助:
国家自然科学基金项目（No. 21021002，No. 20833005）及国家重点基础研究发展计划项目（No. 2009CB930703）资助

Pulse Electrodeposition of Pd-Ni Alloy Nanoparticles for Electrocatalytic Oxidation of Formic Acid

YANG Fang-zu^*, YUE Jun-pei, TIAN Zhong-qun, ZHOU Shao-min

State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China

Received:2012-12-05 Revised:2013-01-11 Published:2014-02-25 Online:2014-02-24
Contact: YANG Fang-zu E-mail:fzyang@xmu.edu.cn

摘要/Abstract

摘要： 采用方波脉冲方法，在钯镍合金电解液中成功地电化学沉积出镍原子含量分别为12.0%、16.4%和22.6%的钯镍合金纳米颗粒. 钯镍合金纳米颗粒为球状，粒径50 ~ 80 nm. 随钯镍合金生长电位负移，合金的镍含量提高，其纳米颗粒大小基本相似但纳米颗粒数目增多，交联度提高和真实活性面积增大. 钯镍合金纳米颗粒镍含量提高，在硫酸溶液中其氢弱吸附峰电流增大. 钯镍合金纳米颗粒电极的甲酸电催化氧化活性较好，随合金纳米颗粒的镍含量提高和交联度增加，合金纳米颗粒电极的甲酸电催化氧化稳定性更高.

关键词: 钯镍合金, 纳米颗粒, 甲酸, 氧化, 电催化

Abstract: The Pd-Ni alloy nanoparticles with nickel atomic contents of 12.0%, 16.4% and 22.6% were successfully electrodeposited from a Pd-Ni alloy electrolyte by square wave pulse plating. The alloy nanoparticles were in the spherical shape with a diameter of 50 ~ 80 nm. As the growth potential of the alloy was negatively shifted, the nickel content of the alloy was increased, and the size of the nanoparticles was almost the same, whereas the number, the degree of crosslinking and the real active area of the nanoparticles were increased. As the nickel content of the alloy nanoparticles increased, the peak current for weakly adsorbing hydrogen was increased. The alloy nanoparticles electrodes were shown in a good electrocatalytic oxidation activity to formic acid. The electrocatalytic oxidation stability of the alloy nanoparticles was increased by the increases of the number and the degree of crosslinking.

Key words: Pd-Ni alloy, nanoparticles, formic acid, oxidation, electrocatalysis

中图分类号:

O646

杨防祖*，岳俊培，田中群，周绍民. 脉冲电沉积Pd-Ni合金纳米颗粒及其甲酸电催化氧化[J]. 电化学（中英文）, 2014, 20(1): 5-11.

YANG Fang-zu*, YUE Jun-pei, TIAN Zhong-qun, ZHOU Shao-min. Pulse Electrodeposition of Pd-Ni Alloy Nanoparticles for Electrocatalytic Oxidation of Formic Acid[J]. Journal of Electrochemistry, 2014, 20(1): 5-11.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.121205

https://electrochem.xmu.edu.cn/CN/Y2014/V20/I1/5

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脉冲电沉积Pd-Ni合金纳米颗粒及其甲酸电催化氧化

Pulse Electrodeposition of Pd-Ni Alloy Nanoparticles for Electrocatalytic Oxidation of Formic Acid

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