Conjugated Microporous Polycarbazole Networks as Precursors for Nitrogen-Enriched Microporous Carbons for CO<sub>2</sub> Storage and Electrochemical Capacitors

Porous carbon materials have demonstrated exceptional performance in a variety of energy-and environment-related applications. Over the past decades, tremendous efforts have been made in the coordinated design and fabrication of porous carbon nanoarchitectures in terms of pore sizes, surface chemistry, and structure. Herein, structure-oriented carbon design and applications are reviewed. The unique properties of porous carbon materials that offer them promising design opportunities and broad applicability in some representative fields, including water remediation, CO 2 capture, lithium-ion batteries, lithium-sulfur batteries, lithium metal anodes, Na-ion batteries, K-ion batteries, supercapacitors, and the oxygen reduction reaction are highlighted. Then, the most up-to-date strategies for structural control and functionalization of porous carbons are summarized, toward tailoring microporous, mesoporous, macroporous, and hierarchically porous carbons with disordered or ordered, amorphous or graphitic structures. Meanwhile, the emerging features of these structures in various applications are introduced where applicable. Finally, insights into the challenges and perspectives for future development are provided.

show abstract

Section: Microporous Carbon Nanostructurementioning

confidence: 99%

Porous Carbons: Structure‐Oriented Design and Versatile Applications

Tian

Zhang

Duan

et al. 2020

Adv Funct Materials

391

141

View full text Add to dashboard Cite

show abstract

“…Supercapacitors have gained traction in research due to their outstanding characteristics of energy conversion and storage . To date, transition metal oxides, carbon materials, conductive polymers, and new metal–organic frameworks have been extensively used as supercapacitor electrodes …”

Section: Introductionmentioning

confidence: 99%

Self‐Nitrogen‐Doped Porous Biocarbon from Watermelon Rind: A High‐Performance Supercapacitor Electrode and Its Improved Electrochemical Performance Using Redox Additive Electrolyte

et al. 2019

View full text Add to dashboard Cite

Self‐nitrogen‐doped biocarbons are obtained from the watermelon rind via an easy one‐step pyrolysis‐activation process. Porous biocarbon ACW‐2, obtained with a watermelon/potassium hydroxide (KOH) mass ratio of 1:2 at 700 °C, exhibits a large specific surface area of 1303.3 m2 g−1 and is decorated with abundant nitrogen/oxygen‐containing functional groups. When ACW‐2 is used as a supercapacitor electrode, a high specific capacitance of 260 F g−1 is achieved at a current density of 1 A g−1. ACW‐2 also exhibits an ultrahigh cycling stability, and its retention rate is maintained at 93.8% even after 5000 cycles at a scan rate of 100 mV s−1. Furthermore, ACW‐2 acquires a supramaximal specific capacitance (852 F g−1) and a high energy density (12.9 Wh kg−1) when p‐phenylenediamine redox additive is added into the KOH electrolyte. Therefore, the watermelon rind can be used as a promising biomass precursor, and the as‐prepared porous biocarbon is expected to be an outstanding comprehensive electrode material for electrochemical supercapacitors.

show abstract

“…[16] However, the applications of CMPs for supercapacitors still suffer from some problems. [17][18][19][20] Firstly, most CMPs are synthesized via metal coupling methods, harsh reaction conditions and high-cost catalysts are involved. Secondly, traditional CMPs are obtained by CÀ C coupling, the wettability of as-prepared electrodes is not good enough.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Pyridyl Conjugated Microporous Polymers as Precursors for Porous Carbon Microspheres for Efficient Electrochemical Energy Storage

Cheng

Zuo

et al. 2020

ChemElectroChem

Self Cite

View full text Add to dashboard Cite

Efficient materials for electrochemical energy storage have received much attention. Herein we report a green metal‐free route to synthesize pyridyl conjugated microporous polymers (PCMPs) as precursors for nitrogen‐doped porous carbon microspheres (NCMs) with high surface areas up to 1232 m2 g−1 via a simple carbonization method. The resulting NCMs as supercapacitor electrodes exhibit high specific capacitance of 324 F g−1 at a current density of 0.1 A g−1, and high rate ability (182 F g−1 at 10 A g−1), and excellent cyclability (remained >97 % of initial capacitance at 2 A g−1 after 10000 cycles). This work also presents that molecular engineering of PCMP precursor, pyrolysis temperature and charge/discharge cycling allow the electrochemical energy storage properties of the NCMs to be controlled.

show abstract

Conjugated Microporous Polycarbazole Networks as Precursors for Nitrogen-Enriched Microporous Carbons for CO₂ Storage and Electrochemical Capacitors

Abstract: General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available:

Cited by 140 publications

References 65 publications

Porous Carbons: Structure‐Oriented Design and Versatile Applications

Porous Carbons: Structure‐Oriented Design and Versatile Applications

Self‐Nitrogen‐Doped Porous Biocarbon from Watermelon Rind: A High‐Performance Supercapacitor Electrode and Its Improved Electrochemical Performance Using Redox Additive Electrolyte

Green Synthesis of Pyridyl Conjugated Microporous Polymers as Precursors for Porous Carbon Microspheres for Efficient Electrochemical Energy Storage

Contact Info

Product

Resources

About

Conjugated Microporous Polycarbazole Networks as Precursors for Nitrogen-Enriched Microporous Carbons for CO2 Storage and Electrochemical Capacitors

Abstract: General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available:

Cited by 140 publications

References 65 publications

Porous Carbons: Structure‐Oriented Design and Versatile Applications

Porous Carbons: Structure‐Oriented Design and Versatile Applications

Self‐Nitrogen‐Doped Porous Biocarbon from Watermelon Rind: A High‐Performance Supercapacitor Electrode and Its Improved Electrochemical Performance Using Redox Additive Electrolyte

Green Synthesis of Pyridyl Conjugated Microporous Polymers as Precursors for Porous Carbon Microspheres for Efficient Electrochemical Energy Storage

Contact Info

Product

Resources

About

Conjugated Microporous Polycarbazole Networks as Precursors for Nitrogen-Enriched Microporous Carbons for CO₂ Storage and Electrochemical Capacitors