A Sulfonated Porous Polymer as Solid Acid Catalyst for Biofuel Synthesis and Chemical Fixation of CO2

Deforestation and uncontrolled emission of carbon dioxide (CO2) through abundant use of fossil fuels result global warming. This serious threat to the atmosphere has deeply motivated the researchers to develop new strategies for chemical fixation of CO2 and biofuel synthesis. Here we report the sulf...

Full description

Saved in:
Bibliographic Details
Published in:ChemistrySelect (Weinheim) 2019-12, Vol.4 (48), p.14315-14328
Main Authors: Dey, Tusar Kanto, Bhanja, Piyali, Basu, Priyanka, Ghosh, Aniruddha, Islam, Sk. Manirul
Format: Article
Language:English
Subjects:
CO2 fixation
Esterification reaction
Heterogeneous catalyst
Porous polymer
Solid acid catalyst
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Deforestation and uncontrolled emission of carbon dioxide (CO2) through abundant use of fossil fuels result global warming. This serious threat to the atmosphere has deeply motivated the researchers to develop new strategies for chemical fixation of CO2 and biofuel synthesis. Here we report the sulfonated porous polytriphenylamine (SPPTPA‐1, BET surface area of 664 m2 g−1, pore volume 0.386 cc g−1) as an efficient heterogeneous catalyst for the synthesis of cyclic carbonates via CO2 fixation into epoxides. SPPTPA‐1 catalyst contains pores with dimension of 1.8‐2.0 nm, which produced a H1 type hysteresis loop in N2 adsorption/desorption isotherm. The porous catalyst is thermally stable upto 196 °C. The synthesized SPPTPA‐1 catalyst contains large amount of surface acidic sites. Further, it catalyzes the esterification reaction of levulinic acid, long chain fatty acids and dicarboxylic acids due to presence of its acidic sites. This solid acid catalyst SPPTPA‐1 showed excellent recycling efficiency upto 5 times in all these demanding reactions. Sulfonated porous polytriphenylamine (SPPTPA‐1) catalyst was synthesized starting from triphenylamine by a polymerization reaction and then sulfonation was performed by chlorosulfonic acid. The synthesized porous polymeric catalyst is highly effective for the synthesis of cyclic carbamates, levulinate esters, fatty acid esters, and dicarboxilic acid esters. The yields of isolated products are excellent compared to other reported works. This reported SPPTPA‐1 catalyst is also highly recyclable up to five reaction runs.
ISSN:2365-6549
2365-6549
DOI:10.1002/slct.201902110