Synthesis and characterization of palladium carbon nanostructure composites

• We present a synthesis approach to produce carbon nanostructures decorated with Pd nanoparticles. Helical carbon nanofibers were synthesized by CVD on Pd supported C 60 catalyst. Their structure has a high and unique surface area. They are an ideal candidate to be decorated with metallic nanoparticles. Nanostructures were functionalized by H 2O2, HNO3 or benzyl mercaptan. The attached functional groups improved the hydrophilicity of the surface and created attachment sites for Pd. Carbon nanotubes and helical carbon nanofibers were successfully decorated with Pd nanoparticles. Transmission electron micrographs clearly show the successful decoration of the carbon support. The influence of the support was investigated. The material was also characterized by a variety of methods such as selected area electron diffraction and thermo gravimetric analysis. The composites show highcatalytic activity towards formic acid, methanol and ethanol oxidation investigated by cyclic voltammetry.

Ämnesord

NATURVETENSKAP  -- Kemi -- Oorganisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)

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