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

A2 Granskningsartikel, litteraturgranskning, systematisk granskning

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Publikationens författare: Lakhya Jyoti Konwar, Päivi Mäki-Arvela, Jyri-Pekka Mikkola
Förläggare: American Chemical Society
Publiceringsår: 2019
Tidskrift: Chemical Reviews
Tidskriftsakronym: Chem. Rev.
Volym: 119
Nummer: 22
Artikelns första sida, sidnummer: 11576
Artikelns sista sida, sidnummer: 11630
Antal sidor: 55
ISSN: 0009-2665
eISSN: 1520-6890


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.

Senast uppdaterad 2020-05-06 vid 05:53