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Directed aqueous-phase reforming of glycerol through tailored platinum nanoparticles

Directed aqueous-phase reforming of glycerol through tailored platinum nanoparticles
Directed aqueous-phase reforming of glycerol through tailored platinum nanoparticles
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.
0926-3373
618-628
Callison, June
65a8260e-eac2-4f55-86c7-f1e3874616e1
Subramanian, Nachal
d0861689-64d1-4fba-b701-49f7e83cb76d
Rogers, Scott
df94b908-f9c2-4ebe-b819-205d519cf853
Chutia, Arunabhiram
fe207bfe-0a7e-4369-8e62-bfa575399f83
Gianolio, Diego
5b316f7d-f314-4337-954e-8c0ce8e38223
Catlow, C. Richard A.
50b88125-9415-4b37-9146-af6783e42510
Wells, Peter P.
bc4fdc2d-a490-41bf-86cc-400edecf2266
Dimitratos, Nikolaos
a4385576-4a05-478b-8389-460bfb43412b
Callison, June
65a8260e-eac2-4f55-86c7-f1e3874616e1
Subramanian, Nachal
d0861689-64d1-4fba-b701-49f7e83cb76d
Rogers, Scott
df94b908-f9c2-4ebe-b819-205d519cf853
Chutia, Arunabhiram
fe207bfe-0a7e-4369-8e62-bfa575399f83
Gianolio, Diego
5b316f7d-f314-4337-954e-8c0ce8e38223
Catlow, C. Richard A.
50b88125-9415-4b37-9146-af6783e42510
Wells, Peter P.
bc4fdc2d-a490-41bf-86cc-400edecf2266
Dimitratos, Nikolaos
a4385576-4a05-478b-8389-460bfb43412b

Callison, June, Subramanian, Nachal, Rogers, Scott, Chutia, Arunabhiram, Gianolio, Diego, Catlow, C. Richard A., Wells, Peter P. and Dimitratos, Nikolaos (2018) Directed aqueous-phase reforming of glycerol through tailored platinum nanoparticles. Applied Catalysis B Environmental, 238, 618-628. (doi:10.1016/j.apcatb.2018.07.008).

Record type: Article

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.

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GR_Draft_Appl Cat B_Review2_final_250618 clean - Accepted Manuscript
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Accepted/In Press date: 2 July 2018
e-pub ahead of print date: 31 July 2018
Published date: 15 December 2018

Identifiers

Local EPrints ID: 422724
URI: https://eprints.soton.ac.uk/id/eprint/422724
ISSN: 0926-3373
PURE UUID: 91cc8e27-9306-43b9-ae57-469da280b1e1
ORCID for Peter P. Wells: ORCID iD orcid.org/0000-0002-0859-9172

Catalogue record

Date deposited: 01 Aug 2018 16:30
Last modified: 14 Mar 2019 01:42

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