Pd/GNPs-PDDA催化剂制备及甲醇电氧化性能  

Preparation and performance of Pd/GNPs-PDDA for methanol electro-oxidation

作　　者：王媛[1] 陈维民[1] 朱振玉[1] 赵博琪 刘欢[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,沈阳110159

出　　处：《化工新型材料》2016年第2期135-137,共3页New Chemical Materials

基　　金：国家自然科学基金资助项目(21273152)

摘　　要：以聚二烯二甲基氯化铵(PDDA)修饰的石墨烯纳米片(GNPs)为载体,利用微波辅助合成法制备Pd/GNPsPDDA电催化剂,考察PDDA的引入对Pd粒子在GNPs上的分散效果及电催化性能的影响。结果表明:PDDA的加入改善了Pd粒子的分散性,甲醇氧化反应的电流密度从54.71mA/cm^2提高到了73.59mA/cm^2,同时甲醇氧化起始电位从-0.437V负移到了-0.511V,动力学性能得到改进。The Pd/GNPs-PDDA electrocatalyst was prepared through the microwave-assisted synthesis method,and the performance of the prepared catalyst toward methanol oxidation in the alkaline medium was examined. The results showed that the addition of PDDA in the solution improved the dispersion of Pd particles,methanol oxidation current density increased from 54.71mA/cm^2 to 73.59mA/cm^2. Meanwhile, the onset potential negative of methanol oxidation moved from - 0. 437V to - 0.511V, implying an improved dynamic performance.

关 键 词：聚二烯二甲基氯化铵 石墨烯纳米片 电催化剂 甲醇氧化 

分 类 号：O643.36[理学—物理化学] TM911.4[理学—化学]