Research output: Contribution to journal › Article › peer-review
Effect of vanadium compounds on the sulfonation of carbon materials. / Larichev, Yu V.; Koskin, A. P.
In: Kinetics and Catalysis, Vol. 58, No. 5, 01.09.2017, p. 663-667.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effect of vanadium compounds on the sulfonation of carbon materials
AU - Larichev, Yu V.
AU - Koskin, A. P.
PY - 2017/9/1
Y1 - 2017/9/1
N2 - The synthesis of sulfonated carbon materials (SCMs) via the direct sulfonation of carbon nanofibers with sulfuric acid in the presence of vanadium compounds is studied. An efficient sulfiding system (98% H2SO4–NaVO3) providing a high sulfur content in a carbon material without oleum is proposed. It is established that the introduced sulfur exists in samples in the form of sulfo groups located predominantly on the surface. No intrusion of sulfuric acid residues between graphene layers with the formation of clathrates is revealed. It is shown that the surface of a carbon material is partially oxidized with the formation of carbonyl and carboxyl groups. The kinetic activity of the synthesized SCMs in the liquid-phase reaction of acetic acid esterification with ethanol is studied.
AB - The synthesis of sulfonated carbon materials (SCMs) via the direct sulfonation of carbon nanofibers with sulfuric acid in the presence of vanadium compounds is studied. An efficient sulfiding system (98% H2SO4–NaVO3) providing a high sulfur content in a carbon material without oleum is proposed. It is established that the introduced sulfur exists in samples in the form of sulfo groups located predominantly on the surface. No intrusion of sulfuric acid residues between graphene layers with the formation of clathrates is revealed. It is shown that the surface of a carbon material is partially oxidized with the formation of carbonyl and carboxyl groups. The kinetic activity of the synthesized SCMs in the liquid-phase reaction of acetic acid esterification with ethanol is studied.
KW - acidic catalysis
KW - sulfonated carbon materials
KW - sulfonation
KW - vanadium
UR - http://www.scopus.com/inward/record.url?scp=85030630823&partnerID=8YFLogxK
U2 - 10.1134/S0023158417050159
DO - 10.1134/S0023158417050159
M3 - Article
AN - SCOPUS:85030630823
VL - 58
SP - 663
EP - 667
JO - Kinetics and Catalysis
JF - Kinetics and Catalysis
SN - 0023-1584
IS - 5
ER -
ID: 9894665