催化学报

催化学报 ›› 2011, Vol. 32 ›› Issue (7): 1287-1291.DOI: 10.3724/SP.J.1088.2011.10307

• 研究论文 • 上一篇    

P 掺杂 Pd3Fe1/C 催化剂及其电催化氧还原活性

戴友志1, 刘进兵1, 刘鸿2, 王毅2,a, 宋树芹3,b   

  1. 1邵阳学院生物与化学工程系, 湖南邵阳 422000; 2中山大学化学与化学工程学院, 广东广州 510275; 3中山大学物理科学与工程技术学院光电材料与技术国家重点实验室, 广东广州 510275
  • 收稿日期:2011-03-03 修回日期:2011-05-13 出版日期:2011-07-18 发布日期:2014-11-28

Phosphorus Doped Pd3Fe1/C Catalysts and Their Electrocatalytic Activity for Oxygen Reduction

DAI Youzhi1, LIU Jinbing1, LIU Hong2, WANG Yi2,a, SONG Shuqin3,b   

  1. 1Department of Biochemistry and Chemical Engineering, Shaoyang University, Shaoyang 422000, Hunan, China; 2School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, China; 3State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
  • Received:2011-03-03 Revised:2011-05-13 Online:2011-07-18 Published:2014-11-28

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摘要： 采用化学镀技术制备了 P 掺杂的 Pd3Fe1/C, 并考察了其对氧还原的电催化性能. 结果表明, 制得催化剂的 Pd 分散性高、粒径分布均匀; P 的掺杂降低了 Pd3Fe1/C 催化剂的 Pd-Fe 颗粒粒径, 提高了 Pd3Fe1/C 上氧还原的活性, 且一定程度上改善了 Pd3Fe1/C 催化剂的稳定性. 当 Fe/P 摩尔比为 1/10 时, 催化剂的性能最佳.

关键词: 氧还原反应, 钯, 铁, 炭载催化剂, 磷掺杂, 电催化活性

Abstract: Non-Pt electrocatalysts, Pd3Fe1/C, were doped with inorganic nonmetallic element phosphorus through electroless plating technique, and their electrocatalytic performance was studied. Electroless plating is an effective way to obtain P-doped Pd3Fe1/C with small particle size and high dispersion. The introduction of the P element leads to the decreased Pd-Fe particle size of the catalysts and an increased electrocatalytic activity for oxygen reduction. Moreover, the P dopant can improve the stability of Pd3Fe1/C to some extent. In the case of Fe/P molar ratio = 1/10, the Pd3Fe1P10/C catalyst exhibits the best performance.

Key words: oxygen reduction reaction, palladium, iron, carbon supported catalyst, phosphorus doping, electrocatalytic activity