Synthesis of Highly Dispersed Pt Catalysts on MWCNTs via Hydrolytic Deposition without Preliminary Modification of the Support

Abstract:

Here we report that ethylene-derived multi-walled carbon nanotubes (MWCNTs) can be successfully used in the “as prepared” form for the synthesis of Pt/MWCNTs catalysts in aqueous solutions without the need in special wetting agents or specific treatments. The MWCNTs strongly accelerate the hydrolysis of metal precursor, thereby allowing rapid deposition of Pt oxide under mild conditions. Upon reduction, Pt nanoparticles with uniform distribution over the carbon surface can be obtained, the particle size (2-5 nm) being dependent on BET surface area of MWCNTs (120-350 m²/g) and Pt loading (5-30 wt.% of Pt relative to MWCNTs).

• Periodical: Advanced Materials Research (Volume 1040)
• Pages: 399-404
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1040.399
• Online since: September 2014
• Authors: Igor I. Ovchinnikov*, Mariya A. Shuvaeva, Vladimir L. Kuznetsov, Alexander S. Lisitsyn
• Keywords: Carbon Nanotube (CN), Catalyst Preparation, H₂PtCl₆, Hydrolysis, Pt Nanoparticles

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