Mechanochemical synthesis of Cu2S bonded 2D-sulfonated organic polymers: continuous production of dimethyl carbonate (DMC) via preheating of reactants
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73601823" target="_blank" >RIV/61989592:15310/20:73601823 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlehtml/2020/gc/d0gc01030h" target="_blank" >https://pubs.rsc.org/en/content/articlehtml/2020/gc/d0gc01030h</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d0gc01030h" target="_blank" >10.1039/d0gc01030h</a>
Alternative languages
Result language
angličtina
Original language name
Mechanochemical synthesis of Cu2S bonded 2D-sulfonated organic polymers: continuous production of dimethyl carbonate (DMC) via preheating of reactants
Original language description
The vital need for an external dehydrating agent in high-yield production of dimethyl carbonate (DMC) has been circumvented via in situ formation of copper sulfide (Cu2S) bonded 2D-sulfonated organic polymers, Cu-SOPm and Cu-SOPs, by deploying single-step and solvent-assisted mechanochemical and solvothermal methods, respectively. Cu-SOPm exhibited excellent catalytic activity for the continuous production of DMC from carbon dioxide and methanol without using a dehydrating agent. The presence of a higher amount of sulfonic acid groups (-SO3H) is the key factor, which can adsorb the ensuing water during the reaction thus shifting reaction equilibrium in the forward direction; Cu-SOPs is relatively less active catalytically owing to a smaller amount of sulfonic groups. All the reactions are accomplished on a high-pressure fixed-bed flow reactor and the effects of various reaction parameters (flow rate, catalyst amount, system temperature and pressure) are investigated, especially the preheating of the CO2 and CH3OH mixture, which facilitated methanol conversion considerably, and afforded 42.8% yield of DMC with 100% selectivity. The preparation of the catalysts and formation of DMC were supported by a plausible mechanism wherein increased residence time and high reaction pressure always favored the methanol conversion. This study enables the continuous high-yield generation of DMC under flow conditions deploying preheating of substrates and concomitantly addressing the lingering problem for designing a built-in dehydrating capability in the catalyst.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/EF15_003%2F0000416" target="_blank" >EF15_003/0000416: Advanced Hybrid Nanostructures for Renewable Energy Applications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
GREEN CHEMISTRY
ISSN
1463-9262
e-ISSN
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Volume of the periodical
22
Issue of the periodical within the volume
17
Country of publishing house
GB - UNITED KINGDOM
Number of pages
9
Pages from-to
5619-5627
UT code for WoS article
000563999100029
EID of the result in the Scopus database
2-s2.0-85092728812