High-Throughput Discovery of Hf Promotion on the Formation of Hcp Co and Fischer-Tropsch Activity

Alvarado Rupflin, Luis, Van Rensberg, Hendrik, Zanella, Marco ORCID: 0000-0002-6164-6169, Carrington, Elliot J, Grigoropoulos, Alexios, Manning, Troy ORCID: 0000-0002-7624-4306, Claridge, John Bleddyn ORCID: 0000-0003-4849-6714, Katsoulidis, Alexandros P ORCID: 0000-0003-0860-7440, Tooze, Robert P and Rosseinsky, Matthew J ORCID: 0000-0002-1910-2483 (2020) High-Throughput Discovery of Hf Promotion on the Formation of Hcp Co and Fischer-Tropsch Activity ChemAxiv Preprint. ISSN 2573-2293

Access the full-text of this item by clicking on the Open Access link.

Text Luis paper_ChemRxiv.pdf - Submitted version Download (921kB) | Preview

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 various supports. The protocol is based on the estimation by XRD of active phase, Co, particle size and relative amounts of crystalline phases, Co to support. Sequential libraries samples enabled exploration of four Co loadings with five different promoters on six support materials. Catalysts stable to aging in syngas, displaying minimal change of particle size or relative area, were evaluated for their activity under industrial conditions. This procedure identified SiC as support for stable catalysts and a combination of Ru and Hf to promote the formation 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 presented the highest catalytic activity and C 5+ selectivity amongst the samples tested in this study confirming the effectiveness of the proxy-based high-throughput method.

Item Type:	Article
Uncontrolled Keywords:	3403 Macromolecular and Materials Chemistry, 34 Chemical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	14 Dec 2020 09:18
Last Modified:	23 May 2026 05:25
DOI:	10.26434/chemrxiv.12933683.v1
Open Access URL:	https://doi.org/10.26434/chemrxiv.12933683.v1
Related Websites:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3110323
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.