Radiolytic synthesis of Pt-Ru catalysts based on functional polymer-grafted MWNT and their catalytic efficiency for CO and MeOH
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In this paper, a radiolytic deposition of Pt-Ru nanoparticles on functional polymer-grafted multiwalled carbon nanotube (FP-MWNT) was used to obtain PtRu@PVPBAc-based catalysts for CO stripping and MeOH oxidation.Abstract:
Pt-Ru catalysts based on functional polymer-grafted MWNT (Pt-Ru@FP-MWNT) were prepared by radiolytic deposition of Pt-Ru nanoparticles on functional polymer-grafted multiwalled carbon nanotube (FP-MWNT). Three different types of functional polymers, poly(acrylic acid) (PAAc), poly(methacrylic acid) (PMAc), and poly(vinylphenyl boronic acid) (PVPBAc), were grafted on the MWNT surface by radiation-induced graft polymerization (RIGP). Then, Pt-Ru nanoparticles were deposited onto the FPMWNTsupports by the reduction of metal ions using γ-irradiation to obtain Pt-Ru@FP-MWNT catalysts. The Pt-Ru@FP-MWNT catalysts were then characterized by XRD, XPS, TEM, and elemental analysis. The catalytic efficiency of Pt-Ru@FP-MWNT catalyst was examined for CO stripping and MeOH oxidation for use in a direct methanol fuel cell (DMFC). The Pt-Ru@PVPBAc-MWNT catalyst shows enhanced activity for electro-oxidation of CO and MeOH oxidation over that of the commercial E-TEK catalyst.read more
Citations
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References
More filters
Journal ArticleDOI
Crosslinking of recycled polyethylene by gamma and electron beam irradiation
Esbaide Adem,Miguel Avalos-Borja,D. Carrillo,M. Vazquez,Ernesto Sanchez,María del Pilar Carreón,Guillermina Burillo +6 more
TL;DR: In this article, the effects of gamma and electron irradiation on virgin and recycled polyethylene were compared and their mechanical, thermal and chemical properties were analyzed, showing that VPE samples showed higher crosslinking percentages than RPE samples in all range of doses studied, unirradiated RPE sample had higher values on their tensile properties than VPE.
Journal ArticleDOI
Comparison of high surface Pt/C catalysts by cyclic voltammetry
TL;DR: In this article, a detailed procedure for comparing high surface Pt/C catalysts was pointed out, and the real platinum metal surface area was evaluated by cyclic voltammetry on a thin porous coated disk electrode.
Journal ArticleDOI
Carbon-Supported Pt and PtRu Nanoparticles as Catalysts for a Direct Methanol Fuel Cell
TL;DR: In this article, nanosized Pt and PtRu colloids were prepared by a microwave assisted polyol process and transferred to a toluene solution of decanthiol and Vulcan XC-72 was then added to the solution to adsorb the thiolated nanoparticles, which showed nearly spherical particles and narrow size distributions for both supported and unsupported metals.
Journal ArticleDOI
Radiation-induced synthesis of mono- and multi-metallic clusters and nanocolloids
Jacqueline Belloni,Mehran Mostafavi,Hynd Remita,Jean-Louis Marignier,and Marie-Odile Delcourt +4 more
TL;DR: In this paper, a review is devoted to metal cluster synthesis in solution via radiolytic reduction of ionic precursors under the proper conditions, and the size and structure of the final particles are described in relation to the nucleation and growth mechanism of the process.
Journal ArticleDOI
Durability Study of Pt ∕ C and Pt ∕ CNTs Catalysts under Simulated PEM Fuel Cell Conditions
TL;DR: In this paper, the durability of carbon black supported Pt and multiwalled carbon nanotubes supported Pt (Pt/CNTs) catalysts for potential application in polymer electrolyte membrane fuel cells is investigated using an accelerated durability test.
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