Electrochemical Synthesis and Characterization of Palladium Nanostructures

Palladium (Pd) is a good candidate material for hydrogen gas sensing at room temperature due to its high affinity to hydrogen. Pd in the form of nanostructures has demonstrated better performance in its gas sensing property as compared to that in the form of bulk metal because of its large surface a...

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Bibliographic Details
Published in:Journal of physics. Conference series 2013-01, Vol.431 (1), p.12003-6
Main Authors: Ilias, S H, Kok, K Y, Ng, I K, Saidin, N U
Format: Article
Language:English
Subjects:
Arrays
Chemical synthesis
Electrochemical analysis
Electrodeposition
Gas sensors
Materials selection
Morphology
Nanoparticles
Nanostructure
Nanowires
Palladium
Physics
Reaction time
Rods
Room temperature
Zinc oxide
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Summary:Palladium (Pd) is a good candidate material for hydrogen gas sensing at room temperature due to its high affinity to hydrogen. Pd in the form of nanostructures has demonstrated better performance in its gas sensing property as compared to that in the form of bulk metal because of its large surface area to volume ratio. In this work, various Pd nanostructures were synthesized via electrochemical route. Pd in the form of nanowires can be produced directly via template-assisted electrodeposition while Pd nanotubes were synthesized by galvanic displacement with morphology and composition governed by electrolyte temperature and reaction time. Using similar electrodeposition conditions, Pd in the form of nanoparticles were electrochemically decorated on the surfaces of ZnO rods and Si nanowires arrays. Growth study on various Pd nanostructures produced is presented here, using microscopy, diffraction and probe-based techniques for microstructural, morphological and chemical characterizations.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/431/1/012003