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One pot synthesis of styrene carbonate from carbon dioxide and styrene in water catalyzed by nano-silver modified polyoxometalates

Tebandeke, Emmanuel LU ; Atuko, Irene Otworot LU ; Naziriwo, Betty ; Wallenberg, Reine LU and Wendt, Ola F. LU (2023) In Sustainable Chemistry for the Environment 2.
Abstract

Herein is reported an efficient catalytic system for the direct synthesis of styrene carbonate from styrene and CO2. The preparation and characterization of the catalyst using FTIR, TEM, EDX, XPS, and PXRD is presented. The catalyst comprised of nano-silver modified polyoxometalates (Agx/POM) and n-tetra butyl ammonium bromide (TBAB) was employed in the oxidative carboxylation of styrene with CO2 in water as the solvent using H2O2 oxidant. The catalysed reaction was performed in a stainless steel autoclave reactor and the products were analysed using GC-MS and GC-FID. The oxidative carboxylation process was carried out in a one pot set up without need for subsequent work-up and... (More)

Herein is reported an efficient catalytic system for the direct synthesis of styrene carbonate from styrene and CO2. The preparation and characterization of the catalyst using FTIR, TEM, EDX, XPS, and PXRD is presented. The catalyst comprised of nano-silver modified polyoxometalates (Agx/POM) and n-tetra butyl ammonium bromide (TBAB) was employed in the oxidative carboxylation of styrene with CO2 in water as the solvent using H2O2 oxidant. The catalysed reaction was performed in a stainless steel autoclave reactor and the products were analysed using GC-MS and GC-FID. The oxidative carboxylation process was carried out in a one pot set up without need for subsequent work-up and isolation of the styrene oxide formed from the epoxidation process. The process led to 64.6% styrene conversion in 6 h with 96.9% selectivity towards styrene carbonate at 50 ⁰C and 25 bar CO2. The Agx/POM catalyst and TBAB co-catalyst were both beneficial for the reaction and no cyclic carbonate was formed without the catalyst system. When tested on selected styrene derivatives, the catalyst system showed> 90% conversion and> 90% selectivity to the desired cyclic carbonates. The Agx/POM catalyst could be recovered at the end of the reaction and reused with a fresh amount of TBAB without significant loss in activity.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Carbon dioxide, Nanosilver catalysts, Oxidative carboxylation, Polyoxometalates, Styrene, Styrene carbonate
in
Sustainable Chemistry for the Environment
volume
2
article number
100016
publisher
Elsevier
external identifiers
  • scopus:85186928943
ISSN
2949-8392
DOI
10.1016/j.scenv.2023.100016
language
English
LU publication?
yes
id
6d150ff8-58c5-441c-b14d-733a07ee191c
date added to LUP
2024-04-09 14:32:04
date last changed
2024-04-10 13:11:47
@article{6d150ff8-58c5-441c-b14d-733a07ee191c,
  abstract     = {{<p>Herein is reported an efficient catalytic system for the direct synthesis of styrene carbonate from styrene and CO<sub>2</sub>. The preparation and characterization of the catalyst using FTIR, TEM, EDX, XPS, and PXRD is presented. The catalyst comprised of nano-silver modified polyoxometalates (Ag<sup>x</sup>/POM) and n-tetra butyl ammonium bromide (TBAB) was employed in the oxidative carboxylation of styrene with CO<sub>2</sub> in water as the solvent using H<sub>2</sub>O<sub>2</sub> oxidant. The catalysed reaction was performed in a stainless steel autoclave reactor and the products were analysed using GC-MS and GC-FID. The oxidative carboxylation process was carried out in a one pot set up without need for subsequent work-up and isolation of the styrene oxide formed from the epoxidation process. The process led to 64.6% styrene conversion in 6 h with 96.9% selectivity towards styrene carbonate at 50 ⁰C and 25 bar CO<sub>2</sub>. The Ag<sup>x</sup>/POM catalyst and TBAB co-catalyst were both beneficial for the reaction and no cyclic carbonate was formed without the catalyst system. When tested on selected styrene derivatives, the catalyst system showed&gt; 90% conversion and&gt; 90% selectivity to the desired cyclic carbonates. The Ag<sup>x</sup>/POM catalyst could be recovered at the end of the reaction and reused with a fresh amount of TBAB without significant loss in activity.</p>}},
  author       = {{Tebandeke, Emmanuel and Atuko, Irene Otworot and Naziriwo, Betty and Wallenberg, Reine and Wendt, Ola F.}},
  issn         = {{2949-8392}},
  keywords     = {{Carbon dioxide; Nanosilver catalysts; Oxidative carboxylation; Polyoxometalates; Styrene; Styrene carbonate}},
  language     = {{eng}},
  publisher    = {{Elsevier}},
  series       = {{Sustainable Chemistry for the Environment}},
  title        = {{One pot synthesis of styrene carbonate from carbon dioxide and styrene in water catalyzed by nano-silver modified polyoxometalates}},
  url          = {{http://dx.doi.org/10.1016/j.scenv.2023.100016}},
  doi          = {{10.1016/j.scenv.2023.100016}},
  volume       = {{2}},
  year         = {{2023}},
}