Covalent-organic-frameworks derived N-doped porous carbon materials as anode for superior long-life cycling lithium and sodium ion batteries

Zhang, Xiaojie; Zhu, Guang; Wang, Miao; Li, Jiabao; Lü, Ting

doi:10.1016/j.carbon.2017.02.057

Cited by 286 publications

(148 citation statements)

References 67 publications

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“…The initial reversible capacity was obtained as 815 mAh/g, which was stabilized to 652 mAh/g after a few charge/discharge cycles. The present value of reversible capacity is quite comparable to the recently reported capacities for carbon‐based anodes ,,. In addition, the N‐CNPipes electrode exhibited good cycling stability over 500 cycles measured at 0.1 A/g (Figure S6).…”

Section: Resultssupporting

confidence: 87%

Polypyrrole Nanopipes as a Promising Cathode Material for Li‐ion Batteries and Li‐ion Capacitors: Two‐in‐One Approach

et al. 2018

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Lithium ion capacitor (LIC) is a promising energy storage system that can simultaneously provide high energy with high rate (high power). Generally, LIC is fabricated using capacitive cathode (activated carbon, AC) and insertion‐type anode (graphite) with Li‐ion based organic electrolyte. However, the limited specific capacities of both anode and cathode materials limit the performance of LIC, in particular energy density. In this context, we have developed “two in one” synthetic approach to engineer both cathode and anode from single precursor for high performance LIC. Firstly, we have engineered a low cost 1D polypyrrole nanopipes (PPy‐NPipes), which was utilized as cathode material and delivered a maximum specific capacity of 126 mAh/g, far higher than that of conventional AC cathodes (35 mAh/g). Later, N doped carbon nanopipes (N‐CNPipes) was derived from direct carbonization of PPy‐NPipes and successfully applied as anode material in LIC. Thus, a full LIC was fabricated using both pseudo‐capacitive cathode (PPy‐NPipes) and anode (N‐CNPipes) materials, respectively. The cell delivered a remarkable specific energy of 107 Wh/kg with maximum specific power of 10 kW/kg and good capacity retention of 93 % over 2000 cycles. Thus, this work provide a new approach of utilization of nanostructured conducting polymers as a promising pseudocapacitive cathode for high performance energy storage systems.

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Section: Resultssupporting

confidence: 87%

Polypyrrole Nanopipes as a Promising Cathode Material for Li‐ion Batteries and Li‐ion Capacitors: Two‐in‐One Approach

et al. 2018

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“…The Li storage mechanism of PTTE‐based LIBs was further studied by CV measurement at different scan rates (Figure S3a, Supporting Information). Based on the power‐law relationship (log ( i ) = b log ( v ) + a ), detailed explanation toward this formula was provided in the Supporting Information), the fitted b values are 0.84 and 0.78 for 0.35 and 2.48 V (Figure S3a,c, Supporting Information), respectively, which are much higher than 0.5, indicating that a considerable portion of the capacity is contributed by surface‐induced capacitive process, as evidenced by the calculated results (Figure S3d,f, Supporting Information) . The lower b value observed at 2.48 V compared to 0.35 V illustrates that the diffusion‐controlled intercalation process reaction is more likely to occur at a relatively higher potential .…”

Section: Resultsmentioning

confidence: 84%

Conjugated Microporous Polytetra(2‐Thienyl)ethylene as High Performance Anode Material for Lithium‐ and Sodium‐Ion Batteries

Wang

Zhang

et al. 2018

Macro Chemistry & Physics

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A novel, thiophene‐rich conjugated microporous polymer of polytetra(2‐thienyl)ethylene (PTTE) is synthesized via FeCl3‐catalyzed oxidative polymerization and applied as an anode material for lithium‐ion batteries (LIBs) and sodium‐ion batteries (SIBs). Owing to the high surface area, high redox‐active thiophene content, and the plentiful nanoporous structures in PTTE, the assembled LIBs exhibit a high specific capacitance of 973 mA h g−1 at 100 mA g−1 with excellent rate performance, and the SIBs show a capacitance as high as 370 mA h g−1 at a current density of 50 mA g−1, excellent rate capability, and outstanding cycling stability with a capacity retention of 230 mA h g−1 at 200 mA g−1 after 100 cycles. These results demonstrate this thiophene‐rich conjugated microporous polymer as a promising electrode material for next‐generation energy storage devices.

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“…Importantly, this strategy can avoid the process of removing the residual metal species in the formed materials from MOF pyrolysis. To date, there are only a few reports on the carbonization of COFs; for instance, Pan and co‐workers recently prepared porous CNs through COFs carbonization and applied the material as electrodes in lithium and sodium ion batteries. The covalent triazine frameworks (CTFs) are related to COFs and feature high nitrogen content and abundant pore structure .…”

Section: Introductionmentioning

confidence: 99%

Porous Carbon Nitride Frameworks Derived from Covalent Triazine Framework Anchored Ag Nanoparticles for Catalytic CO₂ Conversion

Lan

et al. 2019

Chemistry A European J

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Porous carbon nitride frameworks (PCNFs) with uniform and rich nitrogen dopants and abundant porosity were successfully fabricated through the direct carbonization of the covalent triazine frameworks (CTFs) at different pyrolysis temperatures and used as supports to anchor and stabilize Ag nanoparticles (NPs) for catalytic CO2 conversion. Importantly, the pyrolysis temperature plays a crucial role in the properties of porous carbon nitride frameworks. The material carbonized at 700 °C showed the highest surface area and micro‐ and mesoporous structure with a certain interlayer distance. Taking advantage of their unique surface characteristics, PCNF‐supported Ag NP catalysts (Ag/PCNF‐T, T=pyrolysis temperature) were prepared by a simple chemical method. A series of characterizations revealed that Ag NPs are embedded in the porous carbon nitride frameworks and confined to a relatively small size with high dispersion owing to the assistance of the abundant surface groups and porous structures. The as‐obtained Ag/PCNF‐T catalysts, especially Ag/PCNF‐700, showed excellent catalytic activity, selectivity, and stability for the carboxylation of CO2 with terminal alkynes under mild conditions. This can be due to the existence of abundant nitrogen atoms and diverse porosity, which resulted in highly efficient catalytic activity and stability.

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Covalent-organic-frameworks derived N-doped porous carbon materials as anode for superior long-life cycling lithium and sodium ion batteries

Cited by 286 publications

References 67 publications

Polypyrrole Nanopipes as a Promising Cathode Material for Li‐ion Batteries and Li‐ion Capacitors: Two‐in‐One Approach

Polypyrrole Nanopipes as a Promising Cathode Material for Li‐ion Batteries and Li‐ion Capacitors: Two‐in‐One Approach

Conjugated Microporous Polytetra(2‐Thienyl)ethylene as High Performance Anode Material for Lithium‐ and Sodium‐Ion Batteries

Porous Carbon Nitride Frameworks Derived from Covalent Triazine Framework Anchored Ag Nanoparticles for Catalytic CO₂ Conversion

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Covalent-organic-frameworks derived N-doped porous carbon materials as anode for superior long-life cycling lithium and sodium ion batteries

Cited by 286 publications

References 67 publications

Polypyrrole Nanopipes as a Promising Cathode Material for Li‐ion Batteries and Li‐ion Capacitors: Two‐in‐One Approach

Polypyrrole Nanopipes as a Promising Cathode Material for Li‐ion Batteries and Li‐ion Capacitors: Two‐in‐One Approach

Conjugated Microporous Polytetra(2‐Thienyl)ethylene as High Performance Anode Material for Lithium‐ and Sodium‐Ion Batteries

Porous Carbon Nitride Frameworks Derived from Covalent Triazine Framework Anchored Ag Nanoparticles for Catalytic CO2 Conversion

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Porous Carbon Nitride Frameworks Derived from Covalent Triazine Framework Anchored Ag Nanoparticles for Catalytic CO₂ Conversion