Selim Alayoglu
Reforming of C₂ Hydrocarbons Over Model Pt Nanoparticle Catalysts
Alayoglu, Selim; Pushkarev, Vladimir V.; Musselwhite, Nathan; An, Kwangjin; Beaumont, Simon K.; Somorjai, Gabor A.
Authors
Vladimir V. Pushkarev
Nathan Musselwhite
Kwangjin An
Dr Simon Beaumont simon.beaumont@durham.ac.uk
Associate Professor
Gabor A. Somorjai
Abstract
Size-controlled model Pt nanoparticle catalysts, synthesized by colloidal chemistry, were used to study the hydrogenative reforming of three C6 hydrocarbons in mixtures with 5:1 excess of H2: methylcyclopentane, n-hexane and 2-methylpentane. We found a strong particle size dependence on the distribution of different reaction products for the hydrogenolysis of methylcyclopentane. The reactions of 50 Torr methylcyclopentane in 250 Torr H2 at 320 °C, using 1.5 and 3.0 nm Pt nanoparticles produced predominantly C6 isomers, especially 2-methylpentane, whereas 5.2 and 11.3 nm Pt nanoparticles were more selective for the formation of benzene. For the hydrogenolysis of n-hexane and 2-methylpentane, strong particle size effects on the turnover rates were observed. Hexane and 2-methylpentane reacted up to an order of magnitude slower over 3.0 nm Pt than over the other particle sizes. At 360 °C the isomerization reactions were more selective than the other reaction pathways over 3.0 nm Pt, which also yielded relatively less benzene.
Citation
Alayoglu, S., Pushkarev, V. V., Musselwhite, N., An, K., Beaumont, S. K., & Somorjai, G. A. (2012). Reforming of C₂ Hydrocarbons Over Model Pt Nanoparticle Catalysts. Topics in Catalysis, 55(11-13), 723-730. https://doi.org/10.1007/s11244-012-9873-4
Journal Article Type | Article |
---|---|
Publication Date | Aug 1, 2012 |
Deposit Date | Mar 8, 2014 |
Journal | Topics in Catalysis |
Print ISSN | 1022-5528 |
Electronic ISSN | 1572-9028 |
Publisher | Springer |
Peer Reviewed | Peer Reviewed |
Volume | 55 |
Issue | 11-13 |
Pages | 723-730 |
DOI | https://doi.org/10.1007/s11244-012-9873-4 |
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