Phenazine-based conjugated microporous polymers: Influence of planarity and imine content on energy storage performance

Kotp, Mohammed G.; Kuo, Shiao-Wei; EL-Mahdy, Ahmed F.M.

doi:10.1016/j.colsurfa.2024.133210

Cited by 6 publications

(3 citation statements)

References 77 publications

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“…PDAQ/rGO-0.3 exhibits remarkable capacity retention and excellent cycle durability, which can be ascribed to the following factors: (1) With the complete π-conjugated system of PDAQ, the molecular skeleton remains stable when the functional group undergoes a redox reaction, and the structure will not be damaged, which theoretically achieves the corresponding long cycle life . (2) A large π-conjugated system for facilitating easier charge transfer during electrochemical processes and conductive substrates provides a certain catalytic effect on PDAQ, allowing for a fast faradaic reaction. , (3) The robust π–π interactions between PDAQ and rGO enable PDAQ to be well-anchored to rGO, effectively avoiding the self-discharge caused by the active species falling off and shuttling between the positive and negative electrodes. , (4) The coiled nanosheet-based 3D network structure speeds up ion transport and adequately exposes the active CO group to enhance the effective utilization of the redox active site and ensure ion accessibility. − …”

Section: Resultsmentioning

confidence: 99%

“…12 (2) A large πconjugated system for facilitating easier charge transfer during electrochemical processes and conductive substrates provides a certain catalytic effect on PDAQ, allowing for a fast faradaic reaction. 25,49 (3) The robust π−π interactions between PDAQ and rGO enable PDAQ to be well-anchored to rGO, effectively avoiding the self-discharge caused by the active species falling off and shuttling between the positive and negative electro- des. 50,51 (4) The coiled nanosheet-based 3D network structure speeds up ion transport and adequately exposes the active C� O group to enhance the effective utilization of the redox active site and ensure ion accessibility.…”

Section: Electrochemical Measurements Of Pdaq/rgosmentioning

confidence: 99%

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Quinone-Enriched Polymer with a Large π-Conjugated Structure for High-Energy Supercapacitors: Synthesis and Electrochemical Assessment

Zhou,

Wei,

Xiao

et al. 2024

Energy Fuels

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Organic synthesis strategies can be used to form particular functional groups and skeleton structures of electrochemically active organic molecules with a reversible faradaic charge transfer suitable for high-efficiency energy storage. In this work, an organic molecular electrode (OME) is assembled by a unique combination of quinone-enriched polymers (PDAQs) with reduced graphene oxides (rGOs) for supercapacitors. Using 1,3,5-benzenetricarboxaldehyde (BA) as a bridge, electrochemically active 2,6-diaminoanthraquinone (DAQ) is connected in an imine linkage to create a novel polymer (PDAQ) with a unique structure. Excellent electrochemical characteristics are achieved as a result of an extensive π-conjugation system and high density of C� O in the structural unit of the PDAQ, while robust π−π interactions between PDAQ and rGO improve cycling stability. PDAQ/rGO-0.3 exhibits an impressive specific capacitance up to 622 F g −1 at 5 mV s −1 with exceptional capacitance retentions (87.8% at 100 mV s −1 ) and a long cycle life. To validate the practical energy storage capability of PDAQ/rGO-0.3, an asymmetric supercapacitor (ASC) was constructed utilizing 2,5-dihydroxy-1,4-benzoquinonefunctionalized rGO (DBQ/rGO) as the positive electrode. The assembled ASC (PDAQ/rGO-0.3//DBQ/rGO) exhibits a remarkable energy density of 32.97 Wh kg −1 at a power density of 605.57 W kg −1 and maintains 88% after undergoing 10 000 cycles. The two ASCs were arranged in tandem configuration, effectively powering up to 63 light-emitting diodes (LEDs), demonstrating their prospective potential for energy storage applications.

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Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Measurements Of Pdaq/rgosmentioning

confidence: 99%

Quinone-Enriched Polymer with a Large π-Conjugated Structure for High-Energy Supercapacitors: Synthesis and Electrochemical Assessment

Zhou,

Wei,

Xiao

et al. 2024

Energy Fuels

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“…The research has recently centred on the creation of novel materials for CO 2 capture [12,13]. Significantly, because of their considerable surface area that enables the adsorption of massive amounts of CO 2 molecules, porous organic polymers (POPs) have emerged as potential materials for capturing carbon dioxide (CO 2 ) [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Selective Capturing of the CO2 Emissions Utilizing Ecological (3-Mercaptopropyl)trimethoxysilane-Coated Porous Organic Polymers in Composite Materials

Kotp,

Kuo

2024

Polymers

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Capturing carbon dioxide (CO2) is still a major obstacle in the fight against climate change and the reduction of greenhouse gas emissions. To address this problem, we employed a simple Friedel–Crafts alkylation to investigate the effectiveness of porous organic polymers (POPs) based on triphenylamine (TPA) and trihydroxy aryl terms derived from chloranil (CH), designated as TPA-CH POP. We then treated the TPA-CH POP with (3-mercaptopropyl)trimethoxysilane (3-MPTS), forming a TPA-CH POP-SH nanocomposite to enhance CO2 capture. Utilizing FTIR, solid-state NMR, SEM, TEM, along with XPS techniques, the molecular makeup, morphological characteristics, as well as physical features of TPA-CH POP and the TPA-CH POP-SH nanocomposite were thoroughly explored. Upon scorching to 800 °C, the TPA-CH POP-SH nanocomposite demonstrated more thermal durability over TPA-CH POP, achieving a char yield of up to 71.5 wt.%. The TPA-CH POP-SH nanocomposite displayed a 2.5-times better CO2 capture, as well as a comparable adsorption capacity of 48.07 cm3 g−1 at 273 K. Additionally, we found that the TPA-CH POP-SH nanocomposite exhibited an improved CO2/nitrogen (N2) selectivity versus the original TPA-CH POP. Typical enthalpy changes for CO2 capture were somewhat increased by the 3-MPTS coating, indicating greater binding energies between CO2 molecules and the adsorbent surface. Our outcomes demonstrate that a TPA-CH POP composite coated with MPTS is a viable candidate for effective CO2 capture uses. Our findings encourage the investigation of different functional groups and optimization strategies.

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Harnessing solar energy with porous organic polymers: Advancements, challenges, economic, environmental impacts and future prospects in sustainable photocatalysis

Kotp,

Kuo

2024

Materials Today Chemistry

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Phenazine-based conjugated microporous polymers: Influence of planarity and imine content on energy storage performance

Cited by 6 publications

References 77 publications

Quinone-Enriched Polymer with a Large π-Conjugated Structure for High-Energy Supercapacitors: Synthesis and Electrochemical Assessment

Quinone-Enriched Polymer with a Large π-Conjugated Structure for High-Energy Supercapacitors: Synthesis and Electrochemical Assessment

Selective Capturing of the CO2 Emissions Utilizing Ecological (3-Mercaptopropyl)trimethoxysilane-Coated Porous Organic Polymers in Composite Materials

Harnessing solar energy with porous organic polymers: Advancements, challenges, economic, environmental impacts and future prospects in sustainable photocatalysis

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