不同质子酸掺杂Pd/PANI的合成及其对甲醇的电催化氧化  

Synthesis Pd/PANI Nanocomposites with Different Protonic Acids and Their Electrocatalytic Oxidation of Methanol

作　　者：王艳丽 胡伟[2] 简杰婷 陈素娴 周丽珊 谭德新 WANG Yanli;HU Wei;JIAN Jieting;CHEN Suxian;ZHOU Lishan;TAN Dexin(School of Chemistry and Chemical Engineering,Lingnan Normal University,Zhanjiang 5240487,China;School of Materials Science and Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]岭南师范学院化学化工学院,广东湛江524048 [2]安徽理工大学材料科学与工程学院,安徽淮南232001

出　　处：《材料科学与工程学报》2020年第4期547-551,共5页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(51303005);广东省科技发展专项资金资助项目(2017A030307028);扬帆计划引进紧缺拔尖人才资助项目(0003017011);岭南师范学院校级科研资助项目(ZL1822,ZL1604);广东省科技创新战略专项基金资助项目(2018A01005);岭南师范学院中青年骨干教师境外研修计划资助项目。

摘　　要：以PdCl 2为金属前驱体,苯胺为单体,避光条件下液相合成了质子酸(HCl、H 2SO 4与H 3PO 4)掺杂的Pd/PANI纳米复合材料。使用多种技术手段对样品进行表征,采用循环伏安法和计时电流法研究了质子酸掺杂Pd/PANI纳米复合材料修饰玻碳电极对甲醇的电催化氧化。结果表明,三种酸掺杂制备的Pd/PANI纳米复合材料不但形貌各异,对甲醇的电催化氧化性能也有较大差异。通过比较,HCl掺杂的复合材料修饰电极对甲醇的电催化活性最大,抗中毒性和稳定性最佳。Palladium(Pd)/polyaniline(PANI)nanocomposites doped with hydrochloric acid(HCl),sulfuric acid(H 2SO 4)and phosphoric acid(H 3PO 4),respectively,were synthesized in the liquid phase under the dark conditions using aniline as monomer and palladium chloride(PdCl 2)as the palladium precursor.The samples were characterized by some methods including FTIR spectroscopy.Electrochemical performance of methanol oxidation was also investigated at a glassy carbon electrode modified with Pd/PANI nanocomposites by cyclic voltammetry(CV)and chronoamperometry.The results showed that both the morphology and the electrochemical properties of methanol oxidation of Pd/PANI nanocomposites doped with different acids were different.Compared with the Pd/PANI nanocomposites doped with the other two acids,Pd/PANI nanocomposites doped with HCl exhibited the more outstanding electrocatalytic activity,anti-poisoning property and electrochemical stability for methanol oxidation.

关 键 词：Pd/PANI纳米复合材料 质子酸 掺杂 甲醇 电催化 

分 类 号：TB333[一般工业技术—材料科学与工程]