Search:
Computing and Library Services - delivering an inspiring information environment

Hydrothermally Stable, Conformal, Sulfated Zirconia Monolayer Catalysts for Glucose Conversion to 5-HMF

Osastiashtiami, Amin, Lee, Adam F., Granollers, Marta, Brown, D.R., Olivi, Luca, Morales, Gabriel, Melero, Juan A. and Wilson, Karen (2015) Hydrothermally Stable, Conformal, Sulfated Zirconia Monolayer Catalysts for Glucose Conversion to 5-HMF. ACS Catalysis, 5 (7). pp. 4345-4352.

[img]
Preview
PDF
Download (1MB) | Preview

Abstract

The grafting and sulfation of zirconia conformal monolayers on SBA-15 to create mesoporous catalysts of tunable solid acid/base character is reported. Conformal zirconia and sulfated zirconia (SZ) materials exhibit both Brönsted and Lewis acidity, with the Brönsted/Lewis acid ratio increasing with film thickness and sulfate content. Grafted zirconia films also exhibit amphoteric character, whose Brönsted/Lewis acid site ratio increases with sulfate loading at the expense of base sites. Bilayer ZrO2/SBA-15 affords an ordered mesoporous material with a high acid site loading upon sulfation and excellent hydrothermal stability. Catalytic performance of SZ/SBA-15 was explored in the aqueous phase conversion of glucose to 5-HMF, delivering a 3-fold enhancement in 5-HMF productivity over nonporous SZ counterparts. The coexistence of accessible solid basic/Lewis acid and Brönsted acid sites in grafted SZ/SBA-15 promotes the respective isomerization of glucose to fructose and dehydration of reactively formed fructose to the desired 5-HMF platform chemical.

Item Type: Article
Subjects: Q Science > QD Chemistry
Schools: School of Applied Sciences > Materials and Catalysis Research Centre
School of Applied Sciences
Related URLs:
Depositing User: Marta Granollers Mesa
Date Deposited: 02 Sep 2015 13:33
Last Modified: 06 Dec 2016 06:37
URI: http://eprints.hud.ac.uk/id/eprint/25587

Downloads

Downloads per month over past year

Repository Staff Only: item control page

View Item View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©