Niobic acid nanoparticle catalysts for the aqueous phase transformation of glucose and fructose to 5-hydroxymethylfurfural

Mariano Tapia Reche, Amin Osatiashtiani, Lee J. Durndell, Mark A. Isaacs, Ângela Silva, Adam F. Lee, Karen Wilson*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A family of bulk and SBA-15 supported peroxo niobic acid sols were prepared by peptisation of niobic acid precipitates with H2O2 as heterogeneous catalysts for aqueous phase glucose and fructose conversion to 5-hydroxymethylfurfural (5-HMF). Niobic acid nanoparticles possess a high density of Brønsted and Lewis acid sites, conferring good activity towards glucose and fructose conversion, albeit with modest 5-HMF yields under mild reaction conditions (100 °C). Thermally-induced niobia crystallisation suppresses solid acidity and activity. Nanoparticulate niobic acid dispersed over SBA-15 exhibits pure Brønsted acidity and an enhanced Turnover Frequency for fructose dehydration.

Original languageEnglish
Pages (from-to)7334-7341
Number of pages8
JournalCatalysis Science and Technology
Volume6
Issue number19
Early online date9 Aug 2016
DOIs
Publication statusPublished - 7 Oct 2016

Bibliographical note

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.

Funding: EPSRC (EP/K014706/1, EP/K000616/2, EP/K014676/1 and EP/K014749/1); and the Royal Society and British Council Global Innovation Initiative for GB3-Net.

Electronic supplementary information (ESI) available: Additional structural
and reactivity data. See DOI: 10.1039/c6cy01129b

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