TY - JOUR
T1 - Porous metal-organic frameworks derived carbon and nickel sulfides composite electrode for energy storage materials
AU - Ramesh, Sivalingam
AU - Yadav, H. M.
AU - Afsar, N.
AU - Haldorai, Yuvaraj
AU - Shin, Kyeongho
AU - Lee, Young Jun
AU - Kim, Joo Hyung
AU - Kim, Heung Soo
N1 - Publisher Copyright:
© 2023
PY - 2023/12/15
Y1 - 2023/12/15
N2 - Researchers have extensively investigated the use of metal-organic frameworks (MOFs), which contain a greater surface area, high porosity, and controlled pore structure, in supercapacitors, sensors and biological applications. Here, we present a novel method for the sonication-improved hydrothermal reaction process of nickel sulfides decorated on metal organic framework derived carbon composite. The NiS@Ni-MOF composite has improved surface, morphological, and electrochemical properties after being annealed at an ideal temperature of 200 °C and then being subjected to a hydrothermal process. The composite electrode fabrication displays improved specific capacitances of 950 F/g at 1 A/g, long-lasting cycle stability, and exceptional capacitance retention in the presence of 6 M KOH electrolyte. Additionally, even at a high current density of 5 A g−1 and 5000 cycles, the capacitance retention can keep 99.7 % of its original value. The NiS@Ni-MOF composite's synergistic effects between its distinctive structural features are responsible for its superior electrochemical capabilities, which make it a promising electrode material for high performance supercapacitors.
AB - Researchers have extensively investigated the use of metal-organic frameworks (MOFs), which contain a greater surface area, high porosity, and controlled pore structure, in supercapacitors, sensors and biological applications. Here, we present a novel method for the sonication-improved hydrothermal reaction process of nickel sulfides decorated on metal organic framework derived carbon composite. The NiS@Ni-MOF composite has improved surface, morphological, and electrochemical properties after being annealed at an ideal temperature of 200 °C and then being subjected to a hydrothermal process. The composite electrode fabrication displays improved specific capacitances of 950 F/g at 1 A/g, long-lasting cycle stability, and exceptional capacitance retention in the presence of 6 M KOH electrolyte. Additionally, even at a high current density of 5 A g−1 and 5000 cycles, the capacitance retention can keep 99.7 % of its original value. The NiS@Ni-MOF composite's synergistic effects between its distinctive structural features are responsible for its superior electrochemical capabilities, which make it a promising electrode material for high performance supercapacitors.
KW - And excellent cyclic retention
KW - Composite
KW - Cyclic stability
KW - Metal organic frame work (MOF)
KW - Nickel sulfide (NiS)
KW - Supercapacitor
UR - http://www.scopus.com/inward/record.url?scp=85173164891&partnerID=8YFLogxK
U2 - 10.1016/j.est.2023.109104
DO - 10.1016/j.est.2023.109104
M3 - Article
AN - SCOPUS:85173164891
SN - 2352-152X
VL - 73
JO - Journal of Energy Storage
JF - Journal of Energy Storage
M1 - 109104
ER -