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dc.contributor.authorCui, Z.
dc.contributor.authorKulesza, P.
dc.contributor.authorLi, C.
dc.contributor.authorXing, W.
dc.contributor.authorJiang, San Ping
dc.identifier.citationCui, Z. and Kulesza, P. and Li, C. and Xing, W. and Jiang, S.P. 2011. Pd nanoparticles supported on HPMo-PDDA-MWCNT and their activity for formic acid oxidation reaction of fuel cells. International Journal of Hydrogen Energy. 36 (14): pp. 8508-8517.

A novel Pd electrocatalyst is developed by self-assembly of Pd nanopartilces on phosphomolybdic acid (HPMo)-poly(diallyldimethylammonium chloride) (PDDA)-functionalized multiwalled carbon nanotubes supports (Pd/HPMo-PDDA-MWCNTs). The as-synthesized Pd/HPMo-PDDA-MWCNTs were characterized by TEM, EDS mapping, Raman spectra, X-ray photoelectron spectroscopy, electrochmeical CO stripping and cyclic voltammetry techniques. Pd nnaoparticles deposited on HPMo-PDDA-MWCNTs are in the range of 3.1 nm with uniform distributon. Pd/HPMo-PDDA-MWCNT catalysts have lower overpotential for COad oxidation manifested as lower peak and onset potentials as compared to acid-treated MWCNTs supported Pd (Pd/AO-MWCNTs) and carbon supported Pd catalysts (Pd/C). Pd/HPMo-PDDA-MWCNTs catalysts also exhibit a much higher electrocatalytic activity and stability for formic acid oxidation reaction as compared to that on Pd/AOMWCNTs and Pd/C. The high electrocatalytic activities of Pd/HPMo-PDDA-MWCNTs catalysts are most likely related to highly dispersed and fine Pd nanoparticles as well as synergistic effects between Pd and HPMo immobilized on PDDA-functionalized MWCNTs.

dc.publisherElsevier Ltd
dc.subjectCarbon nanotubes
dc.subjectPalladium catalysts
dc.subjectDirect formic acid fuel cell
dc.subjectPhosphomolybdic acid
dc.titlePd nanoparticles supported on HPMo-PDDA-MWCNT and their activity for formic acid oxidation reaction of fuel cells
dc.typeJournal Article
dcterms.source.titleInternational Journal of Hydrogen Energy
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available

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