2015
DOI: 10.1021/acs.chemmater.5b00246
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Bottom-up Approach for the Synthesis of a Three-Dimensional Nanoporous Graphene Nanoribbon Framework and Its Gas Sorption Properties

Abstract: We present a new polymerization strategy, that is catalyst-free Diels-Alder cycloaddition polymerization and subsequent FeCl 3 -catalyzed intramolecular cyclodehydrogenation reaction, to introduce graphene nanoribbons up to 2 nm in length and 1.1 nm in width into a graphene nanoribbon framework (GNF). The first graphene nanoribbon framework showed high thermal stability up to 400 o C in air with relatively narrow pore size distribution and exhibited BET surface area of 679 m 2 g -1 . GNF possesses high affinit… Show more

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Cited by 39 publications
(31 citation statements)
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“…As shown in Figure b, isosteric heat determined at low loading was found to be 23.8–28.8 kJ mol −1 . This value is comparable to those of previously reported POPs, such as azo‐COPs (24.8–32.1 kJ mol −1 ), GNFs (28.7–29.8 kJ mol −1 ), ALPs (27.9–32.5 kJ mol −1 ), Azo‐Trip (27.9 kJ mol −1 ) . The selectivity of CO 2 over CH 4 was calculated by using the Henry's Law constants according to the initial slope adsorption isotherms (<0.1 bar) of CO 2 and CH 4 collected at 273 and 298 K (Supporting Information, Figures S10–S13).…”
Section: Resultssupporting
confidence: 89%
“…As shown in Figure b, isosteric heat determined at low loading was found to be 23.8–28.8 kJ mol −1 . This value is comparable to those of previously reported POPs, such as azo‐COPs (24.8–32.1 kJ mol −1 ), GNFs (28.7–29.8 kJ mol −1 ), ALPs (27.9–32.5 kJ mol −1 ), Azo‐Trip (27.9 kJ mol −1 ) . The selectivity of CO 2 over CH 4 was calculated by using the Henry's Law constants according to the initial slope adsorption isotherms (<0.1 bar) of CO 2 and CH 4 collected at 273 and 298 K (Supporting Information, Figures S10–S13).…”
Section: Resultssupporting
confidence: 89%
“…Introduction of microporosity (<2 nm) has been shown to be highly effective to increase the affinity of 3D graphene frameworks toward H 2 gas . As such, we have investigated H 2 storage capacity of CNF‐1 as it showed the highest specific surface area among all the samples tested.…”
Section: Resultsmentioning
confidence: 99%
“…Recently, Ali Coskun's team 105 engineered graphene nanoribbons frameworks (GNFs) through Diels-Alder polymerization followed by FeCl 3 -catalyzed cyclodehydrogenation. An arylacetylene and a dicyclopentanedienone analog were used to construct GNRs (length~2 nm, width1…”
Section: New Synthetic Approachesmentioning
confidence: 99%