Pd/MCNTs催化剂的合成及其电化学性能研究  

Synthesis and electrochemical properties of Pd/MCNTs catalyst

作　　者：郭红霞[1] 刘园[1] 

机构地区：[1]河南机电高等专科学校,河南新乡453003

出　　处：《电源技术》2015年第6期1237-1238,1247,共3页Chinese Journal of Power Sources

摘　　要：采用浓硫酸、浓硝酸组成的混酸体系对多壁碳纳米管进行了酸化处理,并通过浸渍-还原方法合成了Pd/CNTs催化剂,在多壁碳纳米管表面上得到分散均匀的Pd纳米粒子。采用X射线衍射(XRD)及透射电镜(TEM)对Pd/CNTs催化剂试样进行表征,并在酸性介质中测试合成Pd/CNTs的析氢电化学催化活性。结果表明:Pd/CNTs催化剂能够表现出较强的析氢电催化活性,当电位为-0.5 V时,其电流密度达到828 m A/cm2。Pd/MCNTs catalyst was synthesized by impregnation-reduction method using the carbon nanotubes acidized by H~,,SO4 and HNO3acid. The uniform dispersal Pd nano particles were obtained on the surface of MCNTs. The Pd/MCNTs catalyst was studied by means of TEM and XRD. The hydrogen evolution （HER） electrocatalytic activity was tested in acid medium. The results show that the prepared Pd/MCNTs catalyst has high HER activity, and the current density is as high as 828 mNcm^2 at -0.5 V.

关 键 词：碳纳米管 PD 催化 

分 类 号：TM911.4[电气工程—电力电子与电力传动]