J 2022

Non-aqueous synthesis of homogeneous molybdenum silicate microspheres and their application as heterogeneous catalysts in olefin epoxidation and selective aniline oxidation

SKODA, David, Barbora HANULIKOVA, Aleš STÝSKALÍK, Vít VYKOUKAL, Petr MACHÁČ et. al.

Basic information

Original name

Non-aqueous synthesis of homogeneous molybdenum silicate microspheres and their application as heterogeneous catalysts in olefin epoxidation and selective aniline oxidation

Authors

SKODA, David (guarantor), Barbora HANULIKOVA, Aleš STÝSKALÍK (203 Czech Republic, belonging to the institution), Vít VYKOUKAL (203 Czech Republic, belonging to the institution), Petr MACHÁČ (203 Czech Republic, belonging to the institution), Pavel URBANEK, Eva DOMINCOVA BERGEROVA, Lucie ŠIMONÍKOVÁ (203 Czech Republic, belonging to the institution) and Ivo KURITKA

Edition

Journal of Industrial and Engineering Chemistry, Elsevier, 2022, 1226-086X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10403 Physical chemistry

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.100

RIV identification code

RIV/00216224:14310/22:00125560

Organization unit

Faculty of Science

UT WoS

000787815800004

Keywords in English

Molybdenum silicate; Non-aqueous; Microspheres; Catalyst; Epoxidation; Aniline oxidation

Tags

Tags

International impact, Reviewed
Změněno: 21/10/2024 15:27, Mgr. Adéla Pešková

Abstract

V originále

In this work, a novel synthesis of homogeneous molybdenum silicate spheres under non-aqueous conditions is presented. A preparation method is based on the condensation of molybdenum metal–organic framework-based precursor solution prepared via a microwave-assisted approach from bis(acetylacetonato)dioxomolybdenum and biphenyl-4,4′-dicarboxylic acid with 3-aminopropyltriethoxysilane under non-aqueous conditions. The as-prepared product was calcined at 500 °C to obtain amorphous and porous molybdenum silicate microspheres with homogeneously distributed molybdenum species within silicate matrix. The microspheres exhibit an average size of about 480 nm. This material was further studied as a heterogeneous catalyst for the epoxidation of olefins via the model catalytic epoxidation of cyclohexene with cumylhydroperoxide. High catalytic activity at the moderate temperature (65 °C) with the conversion of 86% after 2 h and the high selectivity to cyclohexene oxide has been achieved. In addition, molybdenum silicate microspheres exhibit catalytic activity and high selectivity in the oxidation of aniline to nitrosobenzene.

Links

GJ20-03636Y, research and development project
Name: Nové katalyzátory pro přípravu 1,3-butadienu z ethanolu
Investor: Czech Science Foundation
90110, large research infrastructures
Name: CzechNanoLab
90127, large research infrastructures
Name: CIISB II