SO3H-containing functional carbon materials: Synthesis, structure, and acid catalysis

A2 Review article, Literature review, Systematic review


Internal Authors/Editors


Publication Details

List of Authors: Lakhya Jyoti Konwar, Päivi Mäki-Arvela, Jyri-Pekka Mikkola
Publisher: American Chemical Society
Publication year: 2019
Journal: Chemical Reviews
Journal acronym: Chem. Rev.
Volume number: 119
Issue number: 22
Start page: 11576
End page: 11630
Number of pages: 55
ISSN: 0009-2665
eISSN: 1520-6890


Abstract

The "sulfonated carbons" are a new class of metal-free solid protonic acids characterized by their unique carbon structure and Bronsted acidity (-H0 = 8-11) on par to concentrated H2SO4. These carbon materials covalently functionalized with SO3H groups via C-PhSO3H or C-SO3H linkages can act as versatile water-tolerant solid acids. Due to their low production costs, unique surface chemistry, high chemical and thermal stability, as well as tailorable pore structures they are regarded as potential substitutes to liquid H2SO4. Catalysis, in particular, biomass and large molecule catalysis, is one of the important areas in which acidic carbons have demonstrated exceptional activity and selectivity, outperforming traditional solid acid catalysts (cation-exchange resins, sulfated oxides, and acidic zeolites). In this review we address developments in the different types SO3H- and PhSO3H-functionalized acidic carbon materials, their structure, active sites, and surface properties, applications in catalysis, as well as activation and deactivation characteristics covering important literature since 2004. In particular, we aim to provide a systematic discussion on the specific merits and demerits of such materials obtained from different carbon precursors and functionalization methods which directly influence the structure-stability-acidic properties and catalytic performance.

Last updated on 2020-07-06 at 05:48