Engineering the functionality of porous organic polymers (POPs) for metal/cocatalyst-free CO2 fixation at atmospheric conditions
- Title
- Engineering the functionality of porous organic polymers (POPs) for metal/cocatalyst-free CO2 fixation at atmospheric conditions
- Creator
- Das R.; Kishan R.; Muthukumar D.; Pillai R.S.; Nagaraja C.M.
- Description
- Carbon dioxide (CO2) utilization as C1 feedstock under metal/co-catalyst-free conditions facilitates the development of eco-friendly routes for mitigating atmospheric CO2 concentration and producing value-added compounds. In this regard, herein, we designed a bifunctional porous organic polymer (POP-1) by incorporating acidic (-CONH) and CO2-philic (-NH/N) sites by judicious choice of organic precursors. Indeed, POP-1 exhibits high heat of interaction for CO2 (40.2 kJ/mol) and excellent catalytic performance for transforming carbon dioxide to cyclic carbonates, a high-value commodity chemical with high selectivity and yield under metal/cocatalyst/solvent-free atmospheric pressure conditions. Interestingly, an analogous polymer (POP-2) that lacks basic (-NH/N) sites showed lower CO2 interaction energy (31.6 kJ/mol) and catalytic activity than that of POP-1. The theoretical studies further supported the superior catalytic activity of POP-1 in the absence of Lewis acidic metal and cocatalyst. Notably, POP-1 showed excellent reusability with retention of catalytic performance for multiple cycles of usage. Overall, this work presents a novel approach to metal/cocatalyst/solvent-free utilization of CO2 under eco-friendly atmospheric pressure conditions. 2024 Elsevier Ltd
- Source
- Journal of Environmental Chemical Engineering, Vol-12, No. 5
- Date
- 2024-01-01
- Publisher
- Elsevier Ltd
- Subject
- Atmospheric pressure; CO2 utilization; Cyclic carbonates; Metal/Co-catalyst-free fixation; Porous Organic Polymer (POP)
- Coverage
- Das R., Department of Chemistry, Indian Institute of Technology Ropar, Punjab, Rupnagar, 140001, India; Kishan R., Department of Chemistry, Indian Institute of Technology Ropar, Punjab, Rupnagar, 140001, India; Muthukumar D., Department of Chemistry, Christ University, Bengaluru, 560 022, India; Pillai R.S., Department of Chemistry, Christ University, Bengaluru, 560 022, India; Nagaraja C.M., Department of Chemistry, Indian Institute of Technology Ropar, Punjab, Rupnagar, 140001, India
- Rights
- Restricted Access
- Relation
- ISSN: 22133437
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Das R.; Kishan R.; Muthukumar D.; Pillai R.S.; Nagaraja C.M., “Engineering the functionality of porous organic polymers (POPs) for metal/cocatalyst-free CO2 fixation at atmospheric conditions,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 23, 2025, https://archives.christuniversity.in/items/show/12784.