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

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.

Publication DOI: https://doi.org/10.1039/c6cy01129b
Dataset DOI: https://doi.org/10.17036/b900b811-b0a9-405b-95b8-3437e41522e6
Divisions: Engineering & Applied Sciences > Chemical Engineering & Applied Chemistry
Engineering & Applied Sciences
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Additional Information: 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
Uncontrolled Keywords: Catalysis
Full Text Link: http://pubs.rsc ... 9B#!divAbstract
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2016-10-07
Published Online Date: 2016-08-09
Accepted Date: 2016-08-08
Submitted Date: 2016-05-25
Authors: Reche, Mariano Tapia
Osatiashtiani, Amin ( 0000-0003-1334-127X)
Durndell, Lee J.
Isaacs, Mark A.
Silva, Ângela
Lee, Adam F. ( 0000-0002-2153-1391)
Wilson, Karen ( 0000-0003-4873-708X)

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