Asymmetric supercapacitor based on carbon nanofibers as the anode and two-dimensional copper cobalt oxide nanosheets as the cathode

R. Suresh Babu, R. Vinodh, A.L.F. de Barros, L. M. Samyn, K. Prasanna, M.A. Maier, C.H.F. Alves, Hee-Je Kim*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper reports the fabrication of an ultra-high energy and power density asymmetric supercapacitor (ASC) containing a novel porous carbon nanofiber derived from hypercross-linked polymers (HCP-CNF) and two-dimensional copper cobalt oxide nanosheets (CCO-NS) as the negative and positive electrodes, respectively. The micropore-enriched HCP-CNF is obtained from a facile Friedel-Crafts reaction with naphthalene and α, α′-dichloro-p-xylene as the starting material. The CCO-NS have been prepared by a simple and inexpensive hydrothermal synthesis using polyvinylpyrrolidone (PVP) as a shape controlling agent. The fabricated CCO-NS//HCP-CNF ASC device exhibit a high specific capacitance, 244 F g−1 at a current density of 1 A g−1, owing to the unique porous architecture of CCO-NS and the interconnected microporous carbon skeleton with a high surface area of HCP-CNF. Furthermore, the assembled ASC device show an ultra-high energy density of 25.1 Wh kg−1 at a power density of 400 W kg−1 with maximum operating voltage of 1.60 V. The electrode shows good capacitance retention (91.1%) after 5000 cycles in a 3 M aqueous KOH solution. In addition, two ASC devices are connected in series powered a 5 mm diameter LED indicator for approximately 30 min, highlighting its efficient power supply.
Original languageEnglish
JournalChemical Engineering Journal
Volume366
Pages (from-to)390-403
ISSN1369-703X
DOIs
Publication statusPublished - 2019

Keywords

  • CuCo2O4
  • Energy storage
  • Porous carbon
  • Asymmetric supercapacitors
  • Charge-discharge

Cite this

Suresh Babu, R. ; Vinodh, R. ; de Barros, A.L.F. ; Samyn, L. M. ; Prasanna, K. ; Maier, M.A. ; Alves, C.H.F. ; Kim, Hee-Je. / Asymmetric supercapacitor based on carbon nanofibers as the anode and two-dimensional copper cobalt oxide nanosheets as the cathode. In: Chemical Engineering Journal. 2019 ; Vol. 366. pp. 390-403.
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title = "Asymmetric supercapacitor based on carbon nanofibers as the anode and two-dimensional copper cobalt oxide nanosheets as the cathode",
abstract = "This paper reports the fabrication of an ultra-high energy and power density asymmetric supercapacitor (ASC) containing a novel porous carbon nanofiber derived from hypercross-linked polymers (HCP-CNF) and two-dimensional copper cobalt oxide nanosheets (CCO-NS) as the negative and positive electrodes, respectively. The micropore-enriched HCP-CNF is obtained from a facile Friedel-Crafts reaction with naphthalene and α, α′-dichloro-p-xylene as the starting material. The CCO-NS have been prepared by a simple and inexpensive hydrothermal synthesis using polyvinylpyrrolidone (PVP) as a shape controlling agent. The fabricated CCO-NS//HCP-CNF ASC device exhibit a high specific capacitance, 244 F g−1 at a current density of 1 A g−1, owing to the unique porous architecture of CCO-NS and the interconnected microporous carbon skeleton with a high surface area of HCP-CNF. Furthermore, the assembled ASC device show an ultra-high energy density of 25.1 Wh kg−1 at a power density of 400 W kg−1 with maximum operating voltage of 1.60 V. The electrode shows good capacitance retention (91.1{\%}) after 5000 cycles in a 3 M aqueous KOH solution. In addition, two ASC devices are connected in series powered a 5 mm diameter LED indicator for approximately 30 min, highlighting its efficient power supply.",
keywords = "CuCo2O4, Energy storage, Porous carbon, Asymmetric supercapacitors, Charge-discharge",
author = "{Suresh Babu}, R. and R. Vinodh and {de Barros}, A.L.F. and Samyn, {L. M.} and K. Prasanna and M.A. Maier and C.H.F. Alves and Hee-Je Kim",
year = "2019",
doi = "10.1016/j.cej.2019.02.108",
language = "English",
volume = "366",
pages = "390--403",
journal = "Biochemical Engineering Journal",
issn = "1369-703X",
publisher = "Elsevier",

}

Asymmetric supercapacitor based on carbon nanofibers as the anode and two-dimensional copper cobalt oxide nanosheets as the cathode. / Suresh Babu, R.; Vinodh, R.; de Barros, A.L.F.; Samyn, L. M.; Prasanna, K.; Maier, M.A.; Alves, C.H.F.; Kim, Hee-Je.

In: Chemical Engineering Journal, Vol. 366, 2019, p. 390-403.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Asymmetric supercapacitor based on carbon nanofibers as the anode and two-dimensional copper cobalt oxide nanosheets as the cathode

AU - Suresh Babu, R.

AU - Vinodh, R.

AU - de Barros, A.L.F.

AU - Samyn, L. M.

AU - Prasanna, K.

AU - Maier, M.A.

AU - Alves, C.H.F.

AU - Kim, Hee-Je

PY - 2019

Y1 - 2019

N2 - This paper reports the fabrication of an ultra-high energy and power density asymmetric supercapacitor (ASC) containing a novel porous carbon nanofiber derived from hypercross-linked polymers (HCP-CNF) and two-dimensional copper cobalt oxide nanosheets (CCO-NS) as the negative and positive electrodes, respectively. The micropore-enriched HCP-CNF is obtained from a facile Friedel-Crafts reaction with naphthalene and α, α′-dichloro-p-xylene as the starting material. The CCO-NS have been prepared by a simple and inexpensive hydrothermal synthesis using polyvinylpyrrolidone (PVP) as a shape controlling agent. The fabricated CCO-NS//HCP-CNF ASC device exhibit a high specific capacitance, 244 F g−1 at a current density of 1 A g−1, owing to the unique porous architecture of CCO-NS and the interconnected microporous carbon skeleton with a high surface area of HCP-CNF. Furthermore, the assembled ASC device show an ultra-high energy density of 25.1 Wh kg−1 at a power density of 400 W kg−1 with maximum operating voltage of 1.60 V. The electrode shows good capacitance retention (91.1%) after 5000 cycles in a 3 M aqueous KOH solution. In addition, two ASC devices are connected in series powered a 5 mm diameter LED indicator for approximately 30 min, highlighting its efficient power supply.

AB - This paper reports the fabrication of an ultra-high energy and power density asymmetric supercapacitor (ASC) containing a novel porous carbon nanofiber derived from hypercross-linked polymers (HCP-CNF) and two-dimensional copper cobalt oxide nanosheets (CCO-NS) as the negative and positive electrodes, respectively. The micropore-enriched HCP-CNF is obtained from a facile Friedel-Crafts reaction with naphthalene and α, α′-dichloro-p-xylene as the starting material. The CCO-NS have been prepared by a simple and inexpensive hydrothermal synthesis using polyvinylpyrrolidone (PVP) as a shape controlling agent. The fabricated CCO-NS//HCP-CNF ASC device exhibit a high specific capacitance, 244 F g−1 at a current density of 1 A g−1, owing to the unique porous architecture of CCO-NS and the interconnected microporous carbon skeleton with a high surface area of HCP-CNF. Furthermore, the assembled ASC device show an ultra-high energy density of 25.1 Wh kg−1 at a power density of 400 W kg−1 with maximum operating voltage of 1.60 V. The electrode shows good capacitance retention (91.1%) after 5000 cycles in a 3 M aqueous KOH solution. In addition, two ASC devices are connected in series powered a 5 mm diameter LED indicator for approximately 30 min, highlighting its efficient power supply.

KW - CuCo2O4

KW - Energy storage

KW - Porous carbon

KW - Asymmetric supercapacitors

KW - Charge-discharge

U2 - 10.1016/j.cej.2019.02.108

DO - 10.1016/j.cej.2019.02.108

M3 - Journal article

VL - 366

SP - 390

EP - 403

JO - Biochemical Engineering Journal

JF - Biochemical Engineering Journal

SN - 1369-703X

ER -