Pt/石墨烯-碳纳米管修饰玻碳电极对甲醛的电催化氧化  

Electrocatalytic oxidation of formaldehyde at Pt/graphene-carbon nanotubes composite film modified glassy carbon eletrode

作　　者：柳娟娟[1] 朱彦姝[2] 郑志祥[1,2] 曹菊琴[1] 李玲[1] 闫乾顺[1] 

机构地区：[1]宁夏医科大学药学院,宁夏银川750004 [2]宁夏医科大学基础医学院医用化学系,宁夏银川750004

出　　处：《化学传感器》2014年第4期55-60,共6页Chemical Sensors

基　　金：国家自然科学基金项目(21365017)

摘　　要：该文首先制备了石墨烯-碳纳米管复合材料,然后通过水热法将Pt纳米粒子修饰于该复合材料表面,制成了Pt/石墨烯(Graphene,Gr)-碳纳米管(Carbon nanotubes,CNTs)/玻碳电极(Glassy carbon electrode,GCE)传感器。在磷酸盐缓冲溶液(pH=2.3)中利用循环伏安法研究了甲醛在Pt/Gr-CNTs/GCE上的电化学行为。实验结果表明,Pt/Gr-CNTs对甲醛具有良好的电催化氧化作用。A facile and green method was developed to synthesize graphene （Gr）-carbon nanotubes （CNTs） nanocomposite with sandwich structure, Pt nanoparticles were loaded on the surface of Gr-CNTs by hydrothermal synthesis method. Electocatalytic oxidation properties to formaldehyde was studied. Cyclic vohammetry was used to research electrochemical behavior of formaldehyde at Pt/Gr-CNTs/GCE in phosphate buffer solution （PBS pH=2.3）, and it showed a good performance, which demonstrated that Pt/Gr-CNTs/GCE has favorable electrocatalytic oxida- tion properties for formaldehyde.

关 键 词：甲醛 石墨烯 碳纳米管 铂 催化氧化 

分 类 号：TQ224.122[化学工程—有机化工] O657.1[理学—分析化学]