TY - JOUR
T1 - Fabrication of nickel-copper sulfide nanoparticles decorated on metal-organic framework composite for supercapacitor application by hydrothermal process
AU - Ramesh, Sivalingam
AU - Rabani, Iqra
AU - Sivasamy, Arumugam
AU - Kakani, Vijay
AU - Haldorai, Yuvaraj
AU - Seo, Young Soo
AU - Kim, Joo Hyung
AU - Kim, Heung Soo
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/3/15
Y1 - 2024/3/15
N2 - Due to their flexible porous structure, metal-organic frameworks (MOFs) have a lot of potential as materials for making electrodes for next-generation supercapacitors. The current study is about making controlled syntheses of NiCuS and NiCuS@MOFs composites from nickel and copper precursors, as well as 2-MeI and BDC ligands using ultrasonication to help the hydrothermal process. The fabricated composite materials were characterized by Raman, XRD, FTIR, XPS, and HR-TEM analysis for confirmation of structural and morphological properties. The fabricated composite electrode showed excellent specific capacitance of 535 F g− 1 at 0.5 A/g (three electrode configuration) and 122 F g− 1 at 0.5 A/g (symmetric configuration) and cyclic retention (86.5 %) up to 8000 cycles in the presence of 1 M KOH electrolyte. Furthermore, the fabricated composite electrode (NiCuS@MOF-BDC/SSC) via two electrode configurations showed an energy density of E = 15.82 kh/kg and a power density of P = 9316 kW/kg and excellent cyclic stability and retention. The improved electrochemical performances of the electrode materials were due to the surface, morphological, porous nature, and synergistic effect of the composite structure via the ultrasonication-hydrothermal reaction process. Therefore, the fabricated composite samples were found to have great potential for electrochemical supercapacitor applications.
AB - Due to their flexible porous structure, metal-organic frameworks (MOFs) have a lot of potential as materials for making electrodes for next-generation supercapacitors. The current study is about making controlled syntheses of NiCuS and NiCuS@MOFs composites from nickel and copper precursors, as well as 2-MeI and BDC ligands using ultrasonication to help the hydrothermal process. The fabricated composite materials were characterized by Raman, XRD, FTIR, XPS, and HR-TEM analysis for confirmation of structural and morphological properties. The fabricated composite electrode showed excellent specific capacitance of 535 F g− 1 at 0.5 A/g (three electrode configuration) and 122 F g− 1 at 0.5 A/g (symmetric configuration) and cyclic retention (86.5 %) up to 8000 cycles in the presence of 1 M KOH electrolyte. Furthermore, the fabricated composite electrode (NiCuS@MOF-BDC/SSC) via two electrode configurations showed an energy density of E = 15.82 kh/kg and a power density of P = 9316 kW/kg and excellent cyclic stability and retention. The improved electrochemical performances of the electrode materials were due to the surface, morphological, porous nature, and synergistic effect of the composite structure via the ultrasonication-hydrothermal reaction process. Therefore, the fabricated composite samples were found to have great potential for electrochemical supercapacitor applications.
KW - 2-Methyl imidazole (2-MeI)
KW - Benzene dicarboxylic acid ligands (BDC)
KW - Composites
KW - Metal organic frameworks (MOFs)
KW - Nickel and copper sulfides
KW - Supercapacitor applications
UR - http://www.scopus.com/inward/record.url?scp=85181587965&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2023.173375
DO - 10.1016/j.jallcom.2023.173375
M3 - Article
AN - SCOPUS:85181587965
SN - 0925-8388
VL - 977
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 173375
ER -