Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Sulfur promotion in Au/C catalyzed acetylene hydrochlorination

Dawson, Simon R., Pattisson, Samuel, Malta, Grazia, Dummer, Nicholas F., Smith, Louise R., Lazaridou, Anna, Allen, Christopher S., Davies, Thomas E., Freakley, Simon J., Kondrat, Simon A, Kiely, Christopher J., Johnston, Peter and Hutchings, Graham J. 2021. Sulfur promotion in Au/C catalyzed acetylene hydrochlorination. Small 17 (16) , 2007221. 10.1002/smll.202007221

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview

Abstract

The formation of highly active and stable acetylene hydrochlorination catalysts is of great industrial importance. The successful replacement of the highly toxic mercuric chloride catalyst with gold has led to a flurry of research in this area. One key aspect, which led to the commercialization of the gold catalyst is the use of thiosulphate as a stabilizing ligand. This study investigates the use of a range of sulfur containing compounds as promoters for production of highly active Au/C catalysts. Promotion is observed across a range of metal sulfates, non‐metal sulfates, and sulfuric acid treatments. This observed enhancement can be optimized by careful consideration of either pre‐ or post‐treatments, concentration of dopants used, and modification of washing steps. Pre‐treatment of the carbon support with sulfuric acid (0.76 m) resulted in the most active Au/C in this series with an acetylene conversion of ≈70% at 200 °C.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: Wiley
ISSN: 1613-6810
Funders: Johnson Matthey
Date of First Compliant Deposit: 26 February 2021
Date of Acceptance: 11 January 2021
Last Modified: 15 Jul 2021 01:15
URI: http://orca.cardiff.ac.uk/id/eprint/139017

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics