Method for carbon dioxide fixation using a palladium-doped nitrogen-rich organic framework catalyst
AssigneeKing Fahd University of Petroleum and Minerals
InventorsBosirul Hoque, Aasif Helal
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Abstract
A method of carbon dioxide fixation includes contacting a covalent organic framework material with a co-catalyst and an epoxide in the presence of carbon dioxide to form a cyclic carbonate. The covalent organic framework material includes reacted units of a 2,4,6-trimethyl-1,3,5-triazine, reacted units of a 4,4′-biphenyldicarbaldehyde, and palladium nanoparticles. The reacted units of the 2,4,6-trimethyl-1,3,5-triazine and the reacted units of the 4,4′-biphenyldicarbaldehyde form a COF-701, where the palladium nanoparticles are on an outer surface of the COF-701. The co-catalyst is n-tetrabutylammonium bromide.
Claims19
A method of carbon dioxide fixation, comprising:
- contacting a covalent organic framework material with a co-catalyst and an epoxide in the presence of carbon dioxide to form a cyclic carbonate,
- recovering the covalent organic framework material after the contacting;
- washing the covalent organic framework material;
- drying the covalent organic framework material under vacuum at a temperature of 80 to 120° C. for 8 to 16 hours;
- and then
- contacting the covalent organic framework material with the co-catalyst and the epoxide in the presence of carbon dioxide to form the cyclic carbonate;
- wherein the covalent organic framework material comprises reacted units of a 2,4,6-trimethyl-1,3,5-triazine, reacted units of a 4,4′-biphenyldicarbaldehyde, and palladium nanoparticles,
- wherein the reacted units of the 2,4,6-trimethyl-1,3,5-triazine and the reacted units of the 4,4′-biphenyldicarbaldehyde form a COF-701,
- wherein the palladium nanoparticles are on an outer surface of the COF-701,
- wherein the co-catalyst is n-tetrabutylammonium bromide.
Dependencies are inferred from the claim text.