High-throughput discovery of Hf promotion on the stabilisation of hcp Co and Fischer-Tropsch activity

Collapse authors list.
Rupflin, Luis Alvarado, Van Rensburg, Hendrik, Zanella, Marco ORCID: 0000-0002-6164-6169, Carrington, Elliot J, Vismara, Rebecca, Grigoropoulos, Alexios, Manning, Troy D ORCID: 0000-0002-7624-4306, Claridge, John B ORCID: 0000-0003-4849-6714, Katsoulidis, Alexandros P ORCID: 0000-0003-0860-7440, Tooze, Robert P et al (show 1 more authors) and Rosseinsky, Matthew J ORCID: 0000-0002-1910-2483 (2021) High-throughput discovery of Hf promotion on the stabilisation of hcp Co and Fischer-Tropsch activity JOURNAL OF CATALYSIS, 396. pp. 315-323. ISSN 0021-9517, 1090-2694

Text High-throughput discovery of Hf promotion on the stabilisation of hcp Co and Fischer-Tropsch activity_accepted.docx - Author Accepted Manuscript Download (1MB)

Abstract

A proxy-based high-throughput experimental approach was used to explore the stability and activity of Co-based Fischer-Tropsch Synthesis catalysts with different promoters on a variety of supports. The protocol is based on XRD estimation of the active phase polymorph, particle size and ratio of crystalline phases of Co to support. Sequential sample libraries enabled exploration of four Co loadings with five different promoters on six support materials. Catalysts stable to aging in syngas, i.e. displaying minimal change of particle size or active phase concentration, were evaluated under industrial conditions. This procedure identified SiC as a support that confers catalyst stability and that a combination of Ru and Hf promotes the stabilisation of hcp Co. Unsupported bulk samples of Co with appropriate amounts of Ru and Hf revealed that the formation of hcp Co is independent of the support. The hcp Co-containing catalyst afforded the highest catalytic activity and C<inf>5+</inf> selectivity amongst the samples tested in this study, confirming the effectiveness of the proxy-based high-throughput method.

Item Type:	Article
Uncontrolled Keywords:	High-throughput, Hf, Fischer-Tropsch, hcp Co, Proxy screening
Depositing User:	Symplectic Admin
Date Deposited:	19 Feb 2021 16:18
Last Modified:	16 Jun 2026 10:25
DOI:	10.1016/j.jcat.2021.02.022
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3115869
Disclaimer:	The University of Liverpool is not responsible for content contained on other websites from links within repository metadata. Please contact us if you notice anything that appears incorrect or inappropriate.