Solid acids with SO3H groups and tunable surface properties: versatile catalysts for biomass conversion
authors Russo, PA; Antunes, MM; Neves, P; Wiper, PV; Fazio, E; Neri, F; Barreca, F; Mafra, L; Pillinger, M; Pinna, N; Valente, AA
nationality International
journal JOURNAL OF MATERIALS CHEMISTRY A
keywords AMORPHOUS-CARBON; MESOPOROUS SILICA; ETHYL LEVULINATE; FURFURYL ALCOHOL; HYDROTHERMAL CARBONIZATION; CHEMICAL ACTIVATION; PROTONIC ACID; BIODIESEL; ETHERIFICATION; CELLULOSE
abstract Acid catalysis plays an important role in biomass conversion processes for producing chemicals and fuels. We report a relatively simple procedure for synthesizing versatile, strong acid catalysts based on carbon and carbon silica composites with sulfonic acid groups. The process involves chemical activation of a sulfonic acid organic precursor at low temperature. The synthesis conditions can be modified to tune the surface composition, texture, and the acid properties of the materials towards superior catalytic performances. Molecular level insights into the nature and strength of the acid sites were gained by combining high resolution XPS and H-1-decoupled P-31 MAS NMR spectroscopy of adsorbed triethylphosphine oxide. These materials are effective acid catalysts for the conversion of different biomass-derived chemicals to useful bio products such as furanic ethers and levulinate esters.
publisher ROYAL SOC CHEMISTRY
issn 2050-7488
year published 2014
volume 2
issue 30
beginning page 11813
ending page 11824
digital object identifier (doi) 10.1039/c4ta02320j
web of science category Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary
subject category Chemistry; Energy & Fuels; Materials Science
unique article identifier WOS:000339535100036
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journal impact factor 9.931
5 year journal impact factor 9.531
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