磷钼酸修饰炭载Pd电极的H2O2电催化还原

doi:10.13208/j.electrochem.121110

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (1): 56-59. doi: 10.13208/j.electrochem.121110

磷钼酸修饰炭载Pd电极的H₂O₂电催化还原

孙丽美^*，张铖，包英荣，李宏霞

内蒙古民族大学化学化工学院，内蒙古通辽 028000

收稿日期:2012-11-10 修回日期:2013-07-01 出版日期:2014-02-25 发布日期:2014-02-24
通讯作者: 孙丽美 E-mail:sunlimei2000@126.com
基金资助:
国家自然科学基金项目（No. 21003070）和内蒙古自治区自然科学基金(No. 2012MS0208)资助

Study on Carbon Supported Pd Catalysts Modified by Phosphomolybdic Acid for H₂O₂ Electrocatalytic Reduction

SUN Li-mei^*, ZHANG Cheng, BAO Ying-rong, LI Hong-Xia

College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, TongLiao 028000, Inner Mongolia, China

Received:2012-11-10 Revised:2013-07-01 Published:2014-02-25 Online:2014-02-24
Contact: SUN Li-mei E-mail:sunlimei2000@126.com

摘要/Abstract

摘要： 采用化学还原法制备了炭载钯（Pd/C）催化剂，浸渍修饰磷钼酸（PMA）制备成复合催化剂. 通过XRD和红外谱图（IR）表征催化剂的组分和结构，采用线性扫描曲线及计时电流曲线考察了该电极的电催化性能. 研究表明，室温（20 ^oC）PMA-Pd/C电极的H₂O₂还原电催化活性更优.

关键词: 磷钼酸, 炭载钯催化剂, H₂O₂电还原, 燃料电池

Abstract: The Pd/C catalyst was prepared with the chemical reduction method, and phosphomolybdic acid (PMA) was modified on the Pd/C catalyst using the dipping method. The compositions and structures of the Pd/C and Pd/C modified by phosphomolybdic acid (PMA-Pd/C) catalysts were characterized with X-ray diffraction and Fourier Transform infrared spectroscopy analyses. The electrocatalytic activity and stability of the catalysts for the reduction of hydrogen peroxide (H₂O₂) were studied using cyclic voltammetry and chronoamperometry. The results showed that the phosphomolybdic acid was tightly fixed on the surface of Pd/C catalyst through the chemical interaction. The eletrocatalytic activity of the PMA-Pd/C on H₂O₂ reduction is higher than that of the Pd/C catalyst.

Key words: phosphomolybdic acid, Pd/C catalyst, hydrogen peroxide electroreduction, fuel cell

中图分类号:

O646

孙丽美*，张铖，包英荣，李宏霞. 磷钼酸修饰炭载Pd电极的H₂O₂电催化还原[J]. 电化学（中英文）, 2014, 20(1): 56-59.

SUN Li-mei*, ZHANG Cheng, BAO Ying-rong, LI Hong-Xia. Study on Carbon Supported Pd Catalysts Modified by Phosphomolybdic Acid for H₂O₂ Electrocatalytic Reduction[J]. Journal of Electrochemistry, 2014, 20(1): 56-59.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.121110

https://electrochem.xmu.edu.cn/CN/Y2014/V20/I1/56

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磷钼酸修饰炭载Pd电极的H₂O₂电催化还原

Study on Carbon Supported Pd Catalysts Modified by Phosphomolybdic Acid for H₂O₂ Electrocatalytic Reduction

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