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Nitrogen-Doped Carbons Derived from Imidazole-Based Cross-Linked Porous Organic Polymers
| Content Provider | MDPI |
|---|---|
| Author | Wojciech, Kiciński Dyjak, Sławomir |
| Copyright Year | 2021 |
| Description | Nitrogen-doped and heteroatom multi-doped carbon materials are considered excellent metal-free catalysts, superior catalyst supports for transition metal particles and single metal atoms (single-atom catalysts), as well as efficient sorbents for gas- and liquid-phase substances. Acid-catalyzed sol–gel polycondensation of hydroxybenzenes with heterocyclic aldehydes yields cross-linked thermosetting resins in the form of porous organic polymers (i.e., organic gels). Depending on the utilized hydroxybenzene (e.g., phenol, resorcinol, phloroglucinol, etc.) and heterocyclic aldehyde variety of heteroatom-doped organic polymers can be produced. Upon pyrolysis, highly porous and heteroatom-doped carbons are obtained. Herein, polycondensation of phloroglucinol with imidazole-2-carboxaldehyde (and other, similar heterocyclic aldehydes with two heteroatoms in the aromatic ring) is utilized to obtain porous, N-doped organic and carbon gels with N-content of up to 16.5 and 12 wt.%, respectively. Utilization of a heterocyclic aldehyde with two different heteroatoms yields dually-doped carbon materials. Upon pyrolysis, the porous polymers yield ultramicroporous N-doped and N,S co-doped carbons with specific surface areas of up to 800 m2g−1. The influence of the initial composition of reactants and the pyrolysis temperature on the structure and chemical composition of the final doped organic and carbon materials is studied in detail. |
| Starting Page | 668 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules26030668 |
| Journal | Molecules |
| Issue Number | 3 |
| Volume Number | 26 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-01-27 |
| Access Restriction | Open |
| Subject Keyword | Molecules Polymer Science Carbon Gel Nitrogen-doped Carbon Materials Sol–gel Synthesis Heteroatom Doping Porous Organic Polymers Ultramicropores |
| Content Type | Text |
| Resource Type | Article |
