Journal
CATALYSTS
Volume 13, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/catal13050828
Keywords
carbon nitride (C3N4); mesoporous material; cobalt oxide; selective oxidation; ethylbenzene
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Mesoporous carbon nitride (mpg-C3N4) was prepared and used as a catalytic support for CoOx in the selective oxidation of ethylbenzene. The physicochemical properties of the CoOx/mpg-C3N4 materials were characterized, and their catalytic activities were examined under atmospheric pressure. The mpg-C3N4 showed a higher specific surface area and strong interaction with Co (II) species, resulting in a conversion rate of 62% and a selectivity of 84.7% for ethylbenzene under specific reaction conditions.
Mesoporous carbon nitride (mpg-C3N4) was prepared by using cyanamide as a precursor and colloidal nanosilica as a template. Then, the mpg-C3N4 was used as a catalytic support to load CoOx. The physicochemical properties of the synthesized CoOx/mpg-C3N4 materials were elucidated by multiple characterization methods, and the catalytic activities were examined in the selective oxidation of ethylbenzene (EB) under atmospheric pressure by using tert-butyl hydrogen peroxide (TBHP) as an oxidant. It was found that mpg-C3N4 possessed a higher specific surface area than other carbon nitride materials, and its abundant N-b species were able to interact with Co (II) species. When the dosages of EB and TBHP were 10 mmol and 30 mmol, respectively, the reaction temperature was 100 degrees C, and the reaction time was 10 h, the conversion rate of ethylbenzene was 62%, and the selectivity of AP was 84.7%.
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