Fine tuning of specific surface area and CO2 capture performance in hyper-cross-linked heterocyclic networks with tetrazinyl linker

Wen, Jikai; Xiao, Lili; Sun, Tao; Lei, Zhidan; Chen, Hongbiao; Li, Huaming

doi:10.1016/j.micromeso.2021.111069

Cited by 6 publications

(5 citation statements)

References 47 publications

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“…The formula for the polymeric yield ,, yield = m polymer m monomer × 100 % where m polymer is the weight of the dry polymers and m monomer is the weight of the corresponding monomers. Specifically, m polymer includes the m monomer and the mass of the cross-linking agent participating in the reaction.…”

Section: Methodsmentioning

confidence: 99%

Porosity Engineering of Hyper-Cross-Linked Polymers Based on Fine-Tuned Rigidity in Building Blocks and High-Pressure Methane Storage Applications

2023

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Exploring the effect of the structural rigidity of selected building blocks on the resultant porosity of the desired polymers is crucial for the bottom-up design of hyper-cross-linked polymers. Herein, several novel polymers, based on two series building blocks with stepwise fine-tuned rigidity, were constructed by the low-cost solvent knitting method. Significantly, the porosity of these polymers is highly consistent with the structural rigidity of the basic building blocks, dramatically enhanced from a poor porous state to a micropore-rich framework, with an increase in BET surface areas from 248 to 1276 m2 g–1 for the HCPs based on monomers containing double benzene rings and from 37 to 2368 m2 g–1 for tetraphenyl-like monomer-based HCPs. The best performances, especially concerning methane adsorption capacity, are reached for the rigid 9,9′-spirobifluorene (SBF)-based HCP-SBF framework and flexible tetraphenylmethane (TPM)-based HCP-TPM, showing a 5–100 bar working capacity of 206 cm3 (STP: 273 K, 1 atm) cm–3 (0.296 g g–1) and 199 cm3 (STP) cm–3 (0.112 g g–1) at 273 K, respectively. The bottom-up-designed HCPs with engineered porosity are expected to become novel candidates for onboard methane storage.

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Section: Methodsmentioning

confidence: 99%

Porosity Engineering of Hyper-Cross-Linked Polymers Based on Fine-Tuned Rigidity in Building Blocks and High-Pressure Methane Storage Applications

2023

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“…The Brunauer–Emmett–Teller surface area (SA BET ) of T‐HCP was calculated from the corresponding N 2 isotherm (Figure S3). T‐HCP revealed remarkably high surface area of 940 m 2 g −1 which is superior than several porous polymers reported earlier in literature such as hypercrosslinked heterocyclic networks HCTIn (445–560 m 2 g −1 ), 26 SCHPPs (279–799 m 2 g −1 ) 27 pyrrolidinone‐based HCPs (up to 584 m 2 g −1 ), 28 triazine‐based CMPs (up to 456 m 2 g −1 ) 29 and triptycene‐derived azopolymers TAPs (772 m 2 g −1 ) 30 …”

Section: Resultsmentioning

confidence: 65%

A triptycene derived hypercrosslinked polymer for gas capture and separation applications

Ansari

Bera

Das

2021

J of Applied Polymer Sci

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This work describes facile synthesis of a porous polymeric material (T‐HCP) using readily available reagents. Specifically, T‐HCP is a thermally stable and hypercrosslinked polymer (HCP) that is essentially microporous with a high BET specific surface area (940 m2 g−1). Triptycene based polymers are known to feature internal free volume. Thus, the incorporation of triptycene units and extensive crosslinking by an external cross‐linker in T‐HCP makes it a promising adsorbent for small gas capture applications. Experimental results show that T‐HCP demonstrated good CO2 capture capacity of 132 mg g−1 (273 K, 1 bar). Molecular hydrogen storage capacity of T‐HCP is estimated to be 17.7 mg g−1 (77 K, 1 bar). T‐HCP revealed high CO2/N2 selectivity (up to 63) as well as promising CO2/CH4 (up to 9.1) selectivity suggesting its potential applicability for CO2 separation from flue and natural gases.

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“…S1-S3 †) and possesses a high specific surface area of 989 m 2 g −1 . 24 The PA molecules are adsorbed onto (into) the surface ( pore) of HCTCz by capillary adsorption; HCTCz@PA is thus generated (the second panel in Scheme 1). The spherical HCTCz@Fe/Co-PA precursor is then created through the interaction between HCTCz@PA and Fe 3+ , Co 2+ ions in a mixed solvent of dichloroethane and ethanol (volume ratio: 6 : 1), where the phosphate ions on the surface of HCTCz@PA are well coordinated with metal ions (the third panel in Scheme 1).…”

Section: Resultsmentioning

confidence: 99%

“…The porous hypercrosslinked polymer HCTCz was prepared by Friedel–Crafts cross-linking reaction according to our previous work, 24 where AlCl 3 was used as the catalyst and dichloromethane (DCM) served as the solvent and crosslinking agent. Specifically, anhydrous AlCl 3 was added to bis( N -carbazolyl)-1,2,4,5-tetrazine (TCz) solution in DCM under the protection of N 2 .…”

Section: Methodsmentioning

confidence: 99%

Hypercrosslinked polymer-mediated fabrication of binary metal phosphide decorated spherical carbon as an efficient and durable bifunctional electrocatalyst for rechargeable Zn–air batteries

et al. 2022

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Fine tuning of specific surface area and CO2 capture performance in hyper-cross-linked heterocyclic networks with tetrazinyl linker

Cited by 6 publications

References 47 publications

Porosity Engineering of Hyper-Cross-Linked Polymers Based on Fine-Tuned Rigidity in Building Blocks and High-Pressure Methane Storage Applications

Porosity Engineering of Hyper-Cross-Linked Polymers Based on Fine-Tuned Rigidity in Building Blocks and High-Pressure Methane Storage Applications

A triptycene derived hypercrosslinked polymer for gas capture and separation applications

Hypercrosslinked polymer-mediated fabrication of binary metal phosphide decorated spherical carbon as an efficient and durable bifunctional electrocatalyst for rechargeable Zn–air batteries

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