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One-pot synthesis of conjugated microporous polymers based on extended molecular graphenes for hydrogen storage
- Source :
- Polymer. 174:96-100
- Publication Year :
- 2019
- Publisher :
- Elsevier BV, 2019.
-
Abstract
- Incorporation of highly extended π-conjugated molecules into conjugated microporous polymers (CMPs) is one of the important aspects in material science. Herein we synthesize conjugated microporous polymers (CMP-Gs) with covalently linked molecular graphenes by an efficient tandem oxidative reaction in one-pot, which comprising Scholl-type cyclodehydrogenation and oxidative polymerization. Oxidation of m- or p-thienyl decorated hexaphenylbenzene derivatives with excess of FeCl3 allowing in situ generation of size-controlled graphitic segments form CMP-G1 and CMP-G2 in high yields, respectively. CMP-Gs possess large surface areas and micropore size from 0.5 to 1.5 nm. Gravimetric hydrogen adsorption isotherms show that the adsorption capacity for hydrogen is up to 2.69 wt% for CMP-G1 and 2.14 wt% for CMP-G2 at 20 bar and 77 K, respectively.
- Subjects :
- Polymers and Plastics
Chemistry
Organic Chemistry
One-pot synthesis
02 engineering and technology
Microporous material
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Conjugated microporous polymer
Hydrogen storage
chemistry.chemical_compound
Adsorption
Chemical engineering
Polymerization
Materials Chemistry
Molecule
0210 nano-technology
Hexaphenylbenzene
Subjects
Details
- ISSN :
- 00323861
- Volume :
- 174
- Database :
- OpenAIRE
- Journal :
- Polymer
- Accession number :
- edsair.doi...........d551a576e251d2d7a4d27749a7b1349e