Ru effect on the catalytic performance of Pd@Ru/C catalysts for methanol electro-oxidation

查看全文 作　　者：Yanbiao [1]Ren;Shichao [1]Zhang;Xin [1]Wei

机构地区：[1]School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics

出　　处：《Journal of Energy Chemistry》索引2015年第24卷第2期,共7页

基　　金：supported by the National Basic Research Program of China(2013CB934001);the Natural Science Foundation of Beijing(2051001);the Natural Science Foundation of China(51074011) 摘　　要：Pd@Ru bimetallic nanoparticles deposited on carbon black electro-catalysts have been fabricated by microwave-assisted polyol reduction method and investigated for methanol electro-oxidation(MEO). The structure and electro-catalytic properties of the as-prepared catalysts were characterized by XRD, SEM, TEM and cyclic voltammetry(CV) techniques. The results showed that the introduction of Ru element(2-10 wt%) into Pd 20 wt%/C(hereafter, denoted as Pd/C) produced a series of core-shell structured binary catalysts. Pd@Ru 5 wt%/C(hereafter, denoted as Pd@Ru5/C) catalyst displayed the highest catalytic activity towards MEO. And the mass activity of Pd@Ru5/C electrode catalyst at E =-0.038 V(vs. Hg/HgO) was 1.42 times higher than that of Pd/C electrode catalyst. In addition, the relationship between the catalytic stability for MEO on Pd@Ru/C catalysts and the value of Jbp/Jfp(the ratio of MEO peak current density in the negative scan and positive scan) were also investigated. The result demonstrated that Pd@Ru5/C offering the smallest value of Jbp/Jfpdisplayed the best stable catalytic performance. 关键词：电催化性能电催化剂甲醇电氧化钯电极催化剂催化稳定性多元醇还原法金属纳米粒子

相关文献

参考文献（22）
引证文献（2）
耦合文献（0）

参考文献(22)

引证文献(2)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Ru effect on the catalytic performance of Pd@Ru/C catalysts for methanol electro-oxidation

参考文献(22)

引证文献(2)

用户提示