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sp 3 ‐Linked Amorphous Carbon with Sulfonic Acid Groups as a Heterogeneous Acid Catalyst
Author(s) -
Suganuma Satoshi,
Nakajima Kiyotaka,
Kitano Masaaki,
Hayashi Shigenobu,
Hara Michikazu
Publication year - 2012
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201200010
Subject(s) - catalysis , carbonization , carbon fibers , amorphous carbon , cellobiose , sulfonic acid , chemistry , cellulose , hydrolysis , organic chemistry , brønsted–lowry acid–base theory , amorphous solid , materials science , inorganic chemistry , chemical engineering , composite material , adsorption , composite number , engineering , cellulase
SO 3 H‐bearing amorphous carbon prepared from polyvinyl chloride (PVC) is studied as a heterogeneous Brønsted acid catalyst. Sulfonation of partially carbonized PVC produces amorphous carbon consisting of small SO 3 H‐bearing carbon sheets linked by sp 3 ‐based aliphatic hydrocarbons. This carbon material exhibits much higher catalytic performance in the hydrolysis of cellobiose than conventional heterogeneous Brønsted acid catalysts with SO 3 H groups, including SO 3 H‐bearing amorphous carbon derived from cellulose. This can be attributed to a high density of SO 3 H groups and the fast diffusion of reactants and products enabled by a flexible carbon network.