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Preparation of Pt–Ru@Polypyrrole-MWNT Catalysts by γ-Irradiation and Chemical Reduction and Their Adsorption Capacity for CO

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Abstract:

With the objective to prepare electrocatalysts with high efficiency, the Pt–Ru@PPy-MWNT catalysts were prepared by different approaches. First, the polypyrrole (PPy) as anchoring materials was coated on the surface of multi walled carbon nanotubes (MWNT) by in situ polymerization. Subsequently, Pt–Ru nanoparticles were deposited onto PPy-MWNT composite by different methods like the reduction of metal ions by γ-irradiation and chemical reduction using formaldehyde as reducing agent assisted with stirring of magnetic bar, and assisted with microwave irradiation, and assisted with ultrasonic irradiation, in order to prepare electrocatalyst for fuel cell. The catalytic efficiency of Pt–Ru@PPy-MWNT catalyst was examined for CO stripping.

Keywords: CATALYSTS; CHEMICAL REDUCTION; CO STRIPPING; GAMMA-IRRADIATION; PT-RU NANOPARTICLES

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2010.2981

Publication date: 2010-10-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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