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Designing of Ag-MOF micro-rods decorated with AgNPs as a productive electrode material for hybrid-supercapacitors.

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Title: Designing of Ag-MOF micro-rods decorated with AgNPs as a productive electrode material for hybrid-supercapacitors.
Authors: Noor, Laiba1 (AUTHOR), Roman, Muhammad1,2 (AUTHOR), Shah, Zeeshan Ali3 (AUTHOR), Gillani, S.S.A.1 (AUTHOR) dr.sajidgillani@gcu.edu.pk
Source: Materials Science & Engineering: B. Apr2025, Vol. 314, pN.PAG-N.PAG. 1p.
Subjects: Carbon electrodes, Energy density, Composite materials, Power density, X-ray diffraction, Supercapacitors, Supercapacitor electrodes
Abstract: [Display omitted] • Developed innovative composite of Ag-MOF/AgNPs by physical blending technique. • Composite electrode material was structurally characterized by FTIR, XRD and SEM analysis. • Highest specific capacity achieved for Ag-MOF/AgNPs composite is 165C/g. • Hybrid supercapacitor is fabricated expresses high energy density of 10.67 Wh kg−1 with power density of 363 W kg−1. • Device retains Remarkable cyclic stability of 104% after 3000 charge–discharge cycle. Here we have investigated electrochemical assessment (CV, GCD, EIS) of micro-nano structured composite electrode (Ag-MOF/AgNPs), was made by using physical blending technique that encompasses Ag-MOF and AgNPs in the ratio 1:1 wt%, respectively. The specific capacity estimated for Ag-MOF, AgNPs and their established composite (Ag-MOF/AgNPs) electrodes through GCD evaluation are 5C/g, 230C/g and 165C/g at current density of 0.5 A/g. Adding to promising specific capacity, Ag-MOF/AgNPs composite electrode material has publicized a stable higher discharge potential window and excellent cyclic stability performance among all electrodes. Hybrid-supercapacitor (HSC) is assembled in 1.0 M KOH solution by pairing Ag-MOF/AgNPs electrode with activated carbon electrode possesses promising energy density of 10.67 Wh kg−1 with notable power density of 363 W kg−1 at current density of 0.5 A/g. Further, HSC discloses significant cyclic stability performance by retaining 104 % capacity retention once trialed for continuous 3000 charge–discharge cycles. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:[Display omitted] • Developed innovative composite of Ag-MOF/AgNPs by physical blending technique. • Composite electrode material was structurally characterized by FTIR, XRD and SEM analysis. • Highest specific capacity achieved for Ag-MOF/AgNPs composite is 165C/g. • Hybrid supercapacitor is fabricated expresses high energy density of 10.67 Wh kg−1 with power density of 363 W kg−1. • Device retains Remarkable cyclic stability of 104% after 3000 charge–discharge cycle. Here we have investigated electrochemical assessment (CV, GCD, EIS) of micro-nano structured composite electrode (Ag-MOF/AgNPs), was made by using physical blending technique that encompasses Ag-MOF and AgNPs in the ratio 1:1 wt%, respectively. The specific capacity estimated for Ag-MOF, AgNPs and their established composite (Ag-MOF/AgNPs) electrodes through GCD evaluation are 5C/g, 230C/g and 165C/g at current density of 0.5 A/g. Adding to promising specific capacity, Ag-MOF/AgNPs composite electrode material has publicized a stable higher discharge potential window and excellent cyclic stability performance among all electrodes. Hybrid-supercapacitor (HSC) is assembled in 1.0 M KOH solution by pairing Ag-MOF/AgNPs electrode with activated carbon electrode possesses promising energy density of 10.67 Wh kg−1 with notable power density of 363 W kg−1 at current density of 0.5 A/g. Further, HSC discloses significant cyclic stability performance by retaining 104 % capacity retention once trialed for continuous 3000 charge–discharge cycles. [ABSTRACT FROM AUTHOR]
ISSN:09215107
DOI:10.1016/j.mseb.2025.118054