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Vanadium Oxide‐Nitride Composites for Catalytic Oxidative C−C Bond Cleavage of Cyclohexanol into Lactones with Dioxygen
Author(s) -
Xiao Chuhong,
Du Zhongtian,
Li Shaojie,
Zhao Yanbin,
Liang Changhai
Publication year - 2020
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202000288
Subject(s) - cyclohexanol , catalysis , cyclohexanone , bond cleavage , vanadium , vanadium oxide , chemistry , oxide , inorganic chemistry , nitride , photochemistry , materials science , organic chemistry , layer (electronics)
Abstract Selective catalytic oxidative C−C bond cleavage with dioxygen is useful and challenging to prepare oxygenated fine chemicals. Herein we fabricated vanadium oxide–nitride composites as catalysts via a facile thermal treatment process, and the surface composition could be tuned by the thermal treatment temperature, which could affect catalytic oxidation of cyclohexanol significantly. By using such a V−N−C composite prepared at 500 °C, cyclohexanol could be selectively oxidized with dioxygen into lactones including δ‐valerolactone and γ‐butyrolactone, rather than common dicarboxylic acids. Cyclohexanone and 2‐cyclohexen‐1‐one were verified as two key intermediates. V 3+ species in the form of vanadium nitride and vanadium (III) oxide were detected, and well dispersed on amorphous carbon with a low degree of graphitization. These findings will provide a reference for catalytic oxidative C−C bond cleavage with molecular oxygen under mild reaction conditions.