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Metal‐Free g‐C 3 N 4 /Graphite Composite Based Carbocatalyst for Epoxidation of Styrene
Author(s) -
Dogra Ashima,
Kumar Anil,
Kapoor Mohit,
Gupta Neeraj
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202101542
Subject(s) - x ray photoelectron spectroscopy , styrene , styrene oxide , fourier transform infrared spectroscopy , scanning electron microscope , catalysis , graphite oxide , materials science , oxide , transmission electron microscopy , graphite , composite number , infrared spectroscopy , nuclear chemistry , analytical chemistry (journal) , chemical engineering , copolymer , chemistry , nanotechnology , organic chemistry , composite material , polymer , metallurgy , engineering
Abstract Tuning graphitic surface with nitrogen functionalities renders potential carbocatalysts for a wide range of reactions. Herein, g‐C 3 N 4 /graphite composite material (g‐C 3 N 4 @G) is reported for oxidation of styrene to styrene oxide. The detailed physiochemical properties of g‐C 3 N 4 @G are investigated by X‐ray photoelectron spectroscopy (XPS), Transmission electron microscopy (TEM), Scanning electron microscopy (SEM), X‐ray diffraction (XRD) and Fourier transmission infrared spectroscopy (FTIR) analysis. The TEM and SEM micrographs indicate the formation of g‐C 3 N 4 sheets and N1s XPS results confirm the formation of g‐C 3 N 4 on the graphitic surface. The role of specific catalytic sites is experimentally studied by the use of model catalysts those mimic the functional groups on the surface of g‐C 3 N 4 @G. It is suggested that the catalytic sites on the surface showcase a synergeistic effect, with sp 2 hybridized N site being most selective for styrene oxide.
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