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  • Niobium-doped titanium dioxide on a functionalized carbon supported palladium catalyst for enhanced ethanol electro-oxidation
Title: Niobium-doped titanium dioxide on a functionalized carbon supported palladium catalyst for enhanced ethanol electro-oxidation
Pd nanoparticles anchored on Nb-doped TiO 2 with functionalized carbon support (denoted as Pd/Nb–TiO 2 –C) is synthesized through a controllable hydrolysis and impregnation method. The as-synthesized catalyst is characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). Pd nanoparticles exhibit a uniform distribution with an average particle size of 3 nm. The electrochemical performance is tested by cyclic voltammetry (CV) and chronoamperometry (CA). Compared with Pd supported by functionalized carbon (Pd/C), Pd/Nb–TiO 2 –C demonstrates 15.7% higher metallic Pd content, 23% higher electrochemical active surface area, 75% higher current density in ethanol electro-oxidation, 5% higher durability, and better tolerance of carbonaceous species. The performance enhancement is attributed to the increased conductivity from Nb-doping and the synergistic effect between Pd and TiO 2 .  more » « less
Award ID(s):
1301346
PAR ID:
10081789
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
RSC Advances
Volume:
7
Issue:
55
ISSN:
2046-2069
Page Range / eLocation ID:
34618 to 34623
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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