TY - JOUR
T1 - Fabrication of CuS/Cu2S nanoparticles integrated with multi-walled carbon nanotubes for advanced energy storage applications
AU - Rani, Luxmi
AU - Han, Jeong In
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/3/30
Y1 - 2024/3/30
N2 - The investigation of high energy density supercapacitors has stimulated a great interest in the research community over the last decades. The structural morphology and surface area of electrode material of supercapacitor have a significant impact on its electrochemical performance. Thus, in the present work, CuS/Cu2S nanoparticles and MWCNT/CuS/Cu2S nanocomposites are prepared by simplest hydrothermal method. The prepared materials are characterized by number of specific techniques. Thereafter, synthesized materials are tested as electrode material for electrochemical capacitor. The specific capacity of 356 and 427.38 mA h g−1 are observed from CuS/Cu2S and MWCNT/CuS/Cu2S nanocomposites at the current density of 1 A g−1, respectively. Furthermore, aqueous asymmetric supercapacitor (ASC) is fabricated by MWCNT/CuS/Cu2S and activated carbon (AC) and, high energy density of 70 W h kg−1 is received from MWCNT/CuS/Cu2S//AC at power density of 750 W kg−1. Moreover, for electronic application, red color light emitting diodes (LEDs), toy motor fan and kitchen timer are functionalized by two MWCNT/CuS/Cu2S//AC devices connected in series.
AB - The investigation of high energy density supercapacitors has stimulated a great interest in the research community over the last decades. The structural morphology and surface area of electrode material of supercapacitor have a significant impact on its electrochemical performance. Thus, in the present work, CuS/Cu2S nanoparticles and MWCNT/CuS/Cu2S nanocomposites are prepared by simplest hydrothermal method. The prepared materials are characterized by number of specific techniques. Thereafter, synthesized materials are tested as electrode material for electrochemical capacitor. The specific capacity of 356 and 427.38 mA h g−1 are observed from CuS/Cu2S and MWCNT/CuS/Cu2S nanocomposites at the current density of 1 A g−1, respectively. Furthermore, aqueous asymmetric supercapacitor (ASC) is fabricated by MWCNT/CuS/Cu2S and activated carbon (AC) and, high energy density of 70 W h kg−1 is received from MWCNT/CuS/Cu2S//AC at power density of 750 W kg−1. Moreover, for electronic application, red color light emitting diodes (LEDs), toy motor fan and kitchen timer are functionalized by two MWCNT/CuS/Cu2S//AC devices connected in series.
KW - Aqueous asymmetric supercapacitor
KW - CuS/CuS nanomaterials
KW - Hydrothermal method
KW - Power density
KW - Specific energy
KW - Transition metal sulfide
UR - http://www.scopus.com/inward/record.url?scp=85183472749&partnerID=8YFLogxK
U2 - 10.1016/j.est.2024.110533
DO - 10.1016/j.est.2024.110533
M3 - Article
AN - SCOPUS:85183472749
SN - 2352-152X
VL - 82
JO - Journal of Energy Storage
JF - Journal of Energy Storage
M1 - 110533
ER -