Directed aqueous-phase reforming of glycerol through tailored platinum nanoparticles

Callison, J. and Subramanian, N. D. and Rogers, S. M. and Chutia, Arunabhiram and Gianolio, D. and Catlow, C. R. A and Wells, P. P. and Dimitratos, N. (2018) Directed aqueous-phase reforming of glycerol through tailored platinum nanoparticles. Applied Catalysis B: Environmental, 238 . pp. 618-628. ISSN 0926-3373

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Abstract

Sustainable technologies require both renewable feedstocks and catalysts that are able to direct their conversion to specific products. We establish a structure-activity relationship for the aqueous phase reforming of glycerol over 2% Pt/Al2O3 catalysts, whereby the reaction pathway can be controlled to produce either hydrogen or 1,2-propanediol as the main product. Using the colloidal synthesis method, the reduction temperature was altered to produce Pt nanoparticle catalysts supported on Al2O3 with varying Pt particle size. The catalytic activity of the samples for the
APR of glycerol resulted in a higher conversion of glycerol (34%) for the larger Pt particle size of ∼3.5 nm, producing the liquid 1,2-propanediol as the major product with a yield of 12.5%, whereas smaller particles of ∼2.2 nm gave hydrogen as the main product (5.5% yield). This work demonstrates how the APR of glycerol can be tuned to yield both valuable liquid and gas products using tailored Pt nanoparticles.

Additional Information:Open Access funded by Engineering and Physical Sciences Research Council
Keywords:APR glycerol, Pt/Al2O3, Heterogeneous catalysis, Nanoparticles Colloids
Subjects:F Physical Sciences > F100 Chemistry
Divisions:College of Science > School of Chemistry
ID Code:33069
Deposited On:03 Sep 2018 14:16

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