Issue

Vol. 5 No. 3 (2013)

Palladium Nanoparticles Loaded on Carbon Modified TiO2 Nanobelts for Enhanced Methanol Electrooxidation

https://doi.org/10.1007/BF03353751
Robert Liang
Centre for Advanced Materials Joining, Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
Anming Hu
Centre for Advanced Materials Joining, Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
John Persic
Microbonds Inc., 151 Amber St., Unit 12, Markham ON, L3R 3B3, Canada
Y.Norman Zhou
Centre for Advanced Materials Joining, Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada

Corresponding Author: Anming Hu

anming.hu@uwaterloo.ca

Nano-Micro Letters, Vol. 5 No. 3 (2013), Article Number: 202-212

Abstract

Carbon modified TiO2 nanobelts (TiO2-C) were synthesized using a hydrothermal growth method, as a support material for palladium (Pd) nanoparticles (Pd/TiO2-C) to improve the electrocatalytic performance for methanol electrooxidation by comparison to Pd nanoparticles on bare TiO2 nanobelts (Pd/TiO2) and activated carbon (Pd/AC). Cyclic voltammetry characterization was conducted with respect to saturated calomel electrode (SCE) in an alkaline methanol solution, and the results indicate that the specific activity of Pd/TiO2-C is 2.2 times that of Pd/AC and 1.5 times that of Pd/TiO2. Chronoamperometry results revealed that the TiO2-C support was comparable in stability to activated carbon, but possesses an enhanced current density for methanol oxidation at a potential of −0.2 V vs. SCE. The current study demonstrates the potential of Pd nanoparticle loaded on hierarchical TiO2-C nanobelts for electrocatalytic applications such as fuel cells and batteries.

Keywords

Titanium oxide nanobelts Carbon-modification Fuel cell Methanol electrooxidation Palladium nanoparticles Electrocatalysts
Liang, Robert, Anming Hu, John Persic, and Y.Norman Zhou. 2013. “Palladium Nanoparticles Loaded on Carbon Modified TiO2 Nanobelts for Enhanced Methanol Electrooxidation”. Nano-Micro Letters 5 (3):202-12. https://doi.org/10.1007/BF03353751.
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