High-performance asymmetric supercapacitor based on CdCO3/CdO/Co3O4composite supported on Ni foam

Rodrigo Henríquez; Alifhers S. Mestra-Acosta; Eduardo Muñoz; Paula Grez; Elena Navarrete-Astorga; Enrique A. Dalchiele

doi:10.1039/d1ra05243h

High-performance asymmetric supercapacitor based on CdCO₃/CdO/Co₃O₄composite supported on Ni foam

Rodrigo Henríquez, Alifhers S. Mestra-Acosta, Eduardo Muñoz, Paula Grez, Elena Navarrete-Astorga, Enrique A. Dalchiele

INSTITUTE OF CHEMISTRY

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7 Scopus citations

Abstract

A CdCO3/CdO/Co3O4 composite has been prepared on nickel foam through a combined hydrothermal-annealing method. An asymmetric hybrid supercapacitor (SC) device was assembled with this composite as the positive electrode and activated carbon was the negative electrode. The SC exhibited a high specific capacitance of 84 F g-1 @ 1 mA cm-2, a maximum energy density of 26.3 W h kg-1, and a power density of 2290 W kg-1, along with a wide potential window of 1.5 V and long cycle life (92% after 6000 cycles). SCs assembled in series powered various light-emitting diodes and moved an electrical mini-motor.

Original language	English
Pages (from-to)	31557-31565
Number of pages	9
Journal	RSC Advances
Volume	11
Issue number	50
DOIs	https://doi.org/10.1039/d1ra05243h
State	Published - 4 Sep 2021

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title = "High-performance asymmetric supercapacitor based on CdCO3/CdO/Co3O4composite supported on Ni foam",

abstract = "A CdCO3/CdO/Co3O4 composite has been prepared on nickel foam through a combined hydrothermal-annealing method. An asymmetric hybrid supercapacitor (SC) device was assembled with this composite as the positive electrode and activated carbon was the negative electrode. The SC exhibited a high specific capacitance of 84 F g-1 @ 1 mA cm-2, a maximum energy density of 26.3 W h kg-1, and a power density of 2290 W kg-1, along with a wide potential window of 1.5 V and long cycle life (92% after 6000 cycles). SCs assembled in series powered various light-emitting diodes and moved an electrical mini-motor.",

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T1 - High-performance asymmetric supercapacitor based on CdCO3/CdO/Co3O4composite supported on Ni foam

AU - Henríquez, Rodrigo

AU - Mestra-Acosta, Alifhers S.

AU - Muñoz, Eduardo

AU - Grez, Paula

AU - Navarrete-Astorga, Elena

AU - Dalchiele, Enrique A.

PY - 2021/9/4

Y1 - 2021/9/4

N2 - A CdCO3/CdO/Co3O4 composite has been prepared on nickel foam through a combined hydrothermal-annealing method. An asymmetric hybrid supercapacitor (SC) device was assembled with this composite as the positive electrode and activated carbon was the negative electrode. The SC exhibited a high specific capacitance of 84 F g-1 @ 1 mA cm-2, a maximum energy density of 26.3 W h kg-1, and a power density of 2290 W kg-1, along with a wide potential window of 1.5 V and long cycle life (92% after 6000 cycles). SCs assembled in series powered various light-emitting diodes and moved an electrical mini-motor.

AB - A CdCO3/CdO/Co3O4 composite has been prepared on nickel foam through a combined hydrothermal-annealing method. An asymmetric hybrid supercapacitor (SC) device was assembled with this composite as the positive electrode and activated carbon was the negative electrode. The SC exhibited a high specific capacitance of 84 F g-1 @ 1 mA cm-2, a maximum energy density of 26.3 W h kg-1, and a power density of 2290 W kg-1, along with a wide potential window of 1.5 V and long cycle life (92% after 6000 cycles). SCs assembled in series powered various light-emitting diodes and moved an electrical mini-motor.

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DO - 10.1039/d1ra05243h

M3 - Article

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JO - RSC Advances

JF - RSC Advances

IS - 50

ER -

High-performance asymmetric supercapacitor based on CdCO₃/CdO/Co₃O₄composite supported on Ni foam

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