Porosity-engineered carbons for supercapacitive energy storage using conjugated microporous polymer precursors

Lee, Jet-Sing M.; Wu, Tzu−Ho; Alston, Ben M.; Briggs, Michael E.; Hasell, Tom; Hu, Chi‐Chang; Cooper, Andrew I.

doi:10.1039/c6ta02319c

Cited by 131 publications

(79 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3 Porous carbonaceous materials have attracted great interest due to their versatility in gas storage, 4 separations, 5 catalysis, 6 and energy storage applications. 7,8 The popularity of porous carbons is led by their relatively low cost, scalability, and ease of preparation from a variety of natural and synthetic precursors. These materials possess high surface areas and pore volumes, good thermal, chemical, and mechanical stability, high electrical and thermal conductivity, and good processability.…”

Section: Introductionmentioning

confidence: 99%

High surface area sulfur-doped microporous carbons from inverse vulcanised polymers

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

High surface area sulfur-doped microporous carbons from inverse vulcanised polymers

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Mane ovih kondenzatora su mala gustina snage (usled male električne provodljivosti) i nedostatak stabilnosti usled cikliranja [3]. Da bi se postigla visoka gustina energije, dok se istovremeno održava visoka gustina snage i stabilnost usled cikliranja, kombinuju se principi EDLC i PC [7]. Procena udela EDLC i PC je od najveće važnosti za uspešan razvoj novih elektrodnih materijala, a metode Trasatija i Dana omogućavaju ovaj postupak [8].…”

Section: Uvodunclassified

Calculation of the fraction of pseudo-capacitance and electric double layer capacitance in carbon-based electrochemical capacitors

Aleksić¹,

Ležaić²,

Gavrilov³

2020

Tehnika

View full text Add to dashboard Cite

Novi materijali za primenu u elektrohemijskim kondenzatorima razvijaju se u različitim pravcima: ugljenične nanocevi, grafen, aktivirani ugljenici, templirani porozni ugljenici, a sve sa ciljem poboljšanja njihovih karakteristika kroz povećanje kapaciteta dvojnog električnog sloja i/ili pseudokapacitivnih faradejskih procesa. Cilj ovog rada bio je određivanje kapaciteta za seriju ugljeničnih materijala metodom ciklične voltametrije pri različitim brzinama polarizacije, kao i razdvajanje doprinosa dvojnog električnog sloja i pseudokapacitivnosti ukupnoj vrednosti kapaciteta elektrohemijskih kondenzatora. Ispitivani materijali uključuju: karbonizovani nanostrukturni polianilin (C-PANI), karbonizovani polianilin dopiran 2,2-difenil-1-pikrilhidrazilom (C-DPPH) i aktivni ugalj (AC). Njihove karakteristike ispitane su u 6M KOH i 0,5M H2SO4, a kapacitivna svojstva pomenutih materijala uspešno su razdvojena primenom Trasatijeve (Trasatti) i Danove (Dunn) metode. Pokazano je da aktivni ugalj, bez obzira što nema najveću vrednost specifičnog kapaciteta u svim elektrolitima, ipak ima najveću retenciju kapaciteta i da bi bio najpogodniji za primenu kao elektrodni materijal u odnosu na ispitivane materijale.

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

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

Porosity-engineered carbons for supercapacitive energy storage using conjugated microporous polymer precursors

Abstract: Direct carbonisation of conjugated microporous polymers (CMPs) yields porosity-engineered carbons, opening up a new source of electroactive materials.

Cited by 131 publications

References 57 publications

High surface area sulfur-doped microporous carbons from inverse vulcanised polymers

High surface area sulfur-doped microporous carbons from inverse vulcanised polymers

Calculation of the fraction of pseudo-capacitance and electric double layer capacitance in carbon-based electrochemical capacitors

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

Contact Info

Product

Resources

About