Author/Authors :
Li، نويسنده , , Jing and Yang، نويسنده , , Wen and Zhu، نويسنده , , Hui and Wang، نويسنده , , Xiaolei and Yang، نويسنده , , Fan and Zhang، نويسنده , , Bailin and Yang، نويسنده , , Xiurong، نويسنده ,
Abstract :
A hybrid material based on Pt nanoparticles (Pt NPs) and multi-walled carbon nanotubes (MWNTs) was fabricated with the assistance of PEI and formic acid. The cationic polyelectrolyte PEI not only favored the homogenous dispersion of carbon nanotubes (CNTs) in water, but also provided sites for the adsorption of anionic ions PtCl42− on the MWNTs’ sidewalls. Deposition of Pt NPs on the MWNTs’ sidewalls was realized by in situ chemical reduction of anionic ions PtCl42− with formic acid. The hybrid material was characterized with TEM, XRD and XPS. Its excellent electrocatalytic activity towards both oxygen reduction in acid media and dopamine redox was also discussed.
Keywords :
Formic acid , Electrocatalysis , PEI , Dopamine redox , oxygen reduction , Pt/MWNTs hybrid material
