Truxene/triazatruxene-based conjugated microporous polymers with flexible@rigid mutualistic symbiosis for efficient CO2 storage

Li, Ze; Wang, Wenbo; Xu, Yongsheng; Zhu, Yuanzhi; Guo, Xiaomeng

doi:10.1016/j.jcou.2021.101550

Cited by 15 publications

(6 citation statements)

References 45 publications

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“…In contrast, these polymers exhibit dramatically higher CO 2 adsorption capacities of 1.5, 1.28, and 2.18 mmol g −1 for C‐TPB, S‐TPB, and SO‐TPB, respectively. Notably, the CO 2 adsorption capacity of SO‐TPB is comparable with many of the reported organic porous polymers, such as polythiophene networks (0.48−2.75 mmol g −1 ), [32d] porphyrin based CMPs (1.24−2.02 mmol g −1 ), [ 33 ] truxene‐based CMPs (1.32−2.62 mmol g −1 ), [ 34 ] etc. At 298 K near‐atmospheric pressure, SO‐TPB also exhibits the largest CO 2 adsorption of 1.24 mmol g −1 , while C‐TPB and S‐TPB with lower BET possess a lower CO 2 uptake of around 0.81 mmol g −1 , which might be due to the decreased pore walls for CO 2 adsorption (Figure 1b).…”

Section: Resultssupporting

confidence: 66%

1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO₂ in the Gas‐Phase System

Dai

Zhong

et al. 2021

Solar RRL

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Herein, three 1,3,5‐triphenylbenzene based porous conjugated polymers (PCPs) are designed for photochemical reduction of CO2 in simulated flue gas in the mild gas−solid reaction system. By tuning the nature of the comonomers, the PCPs present high surface areas, high CO2/N2 selectivity, and broad visible light absorptions with bandgaps of 1.81−2.07 eV. At 1 bar and 273 K, the CO2 uptake capacity of PCPs is enhanced from 1.28 to 2.18 mmol g−1, with an increase in CO2 adsorption heat from 21.8 to 28.3 KJ mol−1. In the presence of gaseous water, SO‐TPB demonstrates the highest CO production rate of 40.12 μmol h−1 g−1 and nearly 100% product selectivity without using organic sacrificial reagent and additional cocatalyst (>420 nm). Moreover, SO‐TPB can be recovered while well retaining the photocatalytic activity and reused at least five runs, indicating good recyclability.

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Section: Resultssupporting

confidence: 66%

1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO₂ in the Gas‐Phase System

Dai

Zhong

et al. 2021

Solar RRL

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“…The CO 2 capture performance of CMPs was evaluated at 273 and 298 K (Figure 1c). At 273 K and 1 bar, in comparison with P2 (34.4 cm 3 g −1 ) and P3 (38.5 cm 3 g −1 ), the CO 2 uptake of P1 (46.6 cm 3 g −1 ) is significantly higher and the value competes with the best performing porous polymer materials such as conjugated microporous polythiophenes (10.74–61.89 cm 3 g −1 ), [ 29 ] porphyrin‐based CMPs (27.3–45.18 cm 3 g −1 ), [ 30 ] triazatruxene‐based CMPs (39.90–90.02 cm 3 g −1 ), [ 31 ] etc. Moreover, the CMPs show CO 2 absorption capacities at 298 K and 1.0 bar, with P1 showing the highest CO 2 uptake capacity of 29.2 cm 3 g −1 , while 19.9 and 24.6 cm 3 g −1 are found for P2 and P3, respectively (Table 1).…”

Section: Resultsmentioning

confidence: 99%

Red‐Light‐Driven CO₂Photoreduction into CH₄and CO Enabled by Narrow‐Gap Conjugated Microporous Polymers

Dai

et al. 2022

Solar RRL

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Herein, selective CO2 photoreduction into CH4 and CO with red light using conjugated microporous polymers (CMPs) at room temperature is reported. By incorporating electron‐rich pyrene and electron‐deficient fluorenone derivatives in the polymer networks to constructing intramolecular donor–acceptor system, the resulting three polymers show very broad light absorption covered from 350 to 1000 nm, with narrow gaps of 1.61–1.74 eV. In the presence of triethanolamine and 1‐benzyl‐1,4‐dihydronicotinamide as the sacrificial agents, P3 exhibits the best visible‐light reduction activity, with CH4 and CO evolution rates of 932.9 and 943.4 μmol h−1 g−1, respectively. Most significantly, under the irradiation of red light (>600 nm), high evolution rates of CH4 and CO for P3 are achieved at 293.7 and 282.6 μmol h−1 g−1, as well as nearly 100% reaction selectivity. The better performance of P3 than P1 and P2 can be ascribed to the high absorption toward CO2 and improved charge transfer under light irradiation. This work opens great opportunities for designing broadband‐responsive CMPs for solar‐driven photocatalytic conversion.

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“…Porous organic polymers are covalently bound organic polymers with abundant nanopores, including conjugated organic polymers (COPs), hyper-cross-linked polymers (HCPs), covalent organic frameworks (COFs), and so on. − On account of an extended π conjugated skeleton, inherent three-dimensional pores, designable structure, and high physicochemical stability, COPs are considered promising materials to be utilized in energy storage, gas adsorption, catalysis, sensing, and light-harvesting. − In 2007, the use of carbonyl derivative conjugated polymers as positive electrodes of lithium-ion batteries is the first time that COP materials were used in the aspect of energy storage . It is noteworthy that the stable skeleton can bring good support ability and also provide abundant binding sites for the anchoring of anions and cations.…”

Section: Introductionmentioning

confidence: 99%

Pendant Length-Dependent Electrochemical Performances for Conjugated Organic Polymers as Solid-State Polymer Electrolytes in Lithium Metal Batteries

Fang

Deng

Zhou

et al. 2023

ACS Appl. Mater. Interfaces

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The development of solid-state polymer electrolytes (SPEs) has been plagued by poor ionic conductivity, low ionic transference number, and limited electrochemical potential window. The exploitation of ionized SPEs is a feasible avenue to solve this problem. Herein, conjugated organic polymers (COPs) with excellent designability and rich pore structures have been selected as platforms for exploration. Three cationic COPs with different chain lengths of quaternary ammonium salts (CbzT@C x , x = 4, 6, 9) are designed and applied to SPEs for the first time. Meanwhile, the effects of chain lengths on their electrochemical performances are compared. Especially, CbzT@C 9 shows the most attractive electrochemical performance due to its high specific surface area of 212.3 m 2 g −1 . The larger specific surface area allows more exposure of the long-chain quaternary ammonium cation groups, which is more favorable for the dissociation of lithium salts. Moreover, the flexible long-chain structure increases the compatibility with poly(ethylene oxide) (PEO) and reduces the crystallinity of PEO to some extent. The richer pore structure can accommodate more PEO, further disrupting the crystallinity of PEO and creating more channels for the ether-oxygen chain to transport lithium ions. At 60 °C, the SPE (CbzTM@C 9 ) presents an excellent ionic conductivity (σ) of 8.00 × 10 −4 S cm −1 . CbzTM@C 9 has a lithium-ion transference number (t Li+ ) of 0.48. Thus, the assembled Li/CbzTM@C 9 /LiFePO 4 battery provides a good discharge capacity of 158.8 mAh g −1 at 0.1C. After 70 cycles, the capacity retention rate is 93.8% with a Coulombic efficiency of 98%. The excellent flexibility brings stable power supply capability under various bending angles to the assembled Li/CbzTM@C 9 /LiFePO 4 soft-packed battery. The project uses conjugated organic polymers in SPEs and creates an avenue to develop flexible energy storage equipment.

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Truxene/triazatruxene-based conjugated microporous polymers with flexible@rigid mutualistic symbiosis for efficient CO2 storage

Cited by 15 publications

References 45 publications

1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO₂ in the Gas‐Phase System

1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO₂ in the Gas‐Phase System

Red‐Light‐Driven CO₂Photoreduction into CH₄and CO Enabled by Narrow‐Gap Conjugated Microporous Polymers

Pendant Length-Dependent Electrochemical Performances for Conjugated Organic Polymers as Solid-State Polymer Electrolytes in Lithium Metal Batteries

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Truxene/triazatruxene-based conjugated microporous polymers with flexible@rigid mutualistic symbiosis for efficient CO2 storage

Cited by 15 publications

References 45 publications

1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO2 in the Gas‐Phase System

1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO2 in the Gas‐Phase System

Red‐Light‐Driven CO2Photoreduction into CH4and CO Enabled by Narrow‐Gap Conjugated Microporous Polymers

Pendant Length-Dependent Electrochemical Performances for Conjugated Organic Polymers as Solid-State Polymer Electrolytes in Lithium Metal Batteries

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1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO₂ in the Gas‐Phase System

1,3,5‐Triphenylbenzene Based Porous Conjugated Polymers for Highly Efficient Photoreduction of Low‐Concentration CO₂ in the Gas‐Phase System

Red‐Light‐Driven CO₂Photoreduction into CH₄and CO Enabled by Narrow‐Gap Conjugated Microporous Polymers