Exploring the feasibility of a two-dimensional layered cobalt-based coordination polymer for supercapacitor applications: effect of electrolytic cations
Coordination polymers have attracted much interest in energy-related applications due to their adaptable structures and unique photophysical and chemical properties. In this study, a coordination polymer, Co-CP , was synthesized using a mixed ligand strategy via a slow diffusion technique. Single-cr...
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| Published in: | Energy advances Vol. 2; no. 12; pp. 2119 - 2128 |
|---|---|
| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
07-12-2023
|
| Online Access: | Get full text |
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| Summary: | Coordination polymers have attracted much interest in energy-related applications due to their adaptable structures and unique photophysical and chemical properties. In this study, a coordination polymer,
Co-CP
, was synthesized using a mixed ligand strategy
via
a slow diffusion technique. Single-crystal X-ray diffraction studies confirmed the characteristic two-dimensional structure of
Co-CP
, and plate-like morphology was authenticated through SEM images.
Co-CP
facilitates ion transport and efficient charge transfer processes, making it an ideal active material for supercapacitor applications. The results from the electrochemical studies demonstrate excellent supercapacitor properties for
Co-CP
, exhibiting a specific capacitance of 1092 F g
−1
at 1.5 A g
−1
in 7 M NaOH. Furthermore, the kinetic effect of the electrolyte cation was also investigated in a two-electrode asymmetric supercapacitor (ASC) system by preparing three different gels (NaOH-PVA, KOH-PVA, and LiOH-PVA). Similar trends were observed for the ASC device, with the highest energy density of 17 W h Kg
−1
at a power density of 1200 W Kg
−1
in NaOH-PVA gel. Overall, the results suggest that
Co-CP
is a promising active material for supercapacitor applications, and the choice of electrolyte cation has a remarkable impact on the electrochemical performance of the device. This study provides valuable insights for the development and optimization of high-performance supercapacitors based on coordination polymers.
Co-CP
, a 2D coordination polymer, synthesized
via
slow diffusion, serves as a supercapacitor electrode. The kinetic effects of three different electrolytic cations (Na
+
, K
+
, and Li
+
) in 3-electrode and 2-electrode setups were investigated further. |
|---|---|
| Bibliography: | Electronic supplementary information (ESI) available. CCDC For ESI and crystallographic data in CIF or other electronic format see DOI https://doi.org/10.1039/d3ya00378g 2285196 |
| ISSN: | 2753-1457 2753-1457 |
| DOI: | 10.1039/d3ya00378g |