Related Experiment Video
Updated: Jun 28, 2026
12:00
Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
Engineering Hierarchical Nickel Cobalt Metal-Organic Frameworks Through Metal Ion Modulation for High-Performance
Swapnil S Pujari1, Sandip S Katte1, Vinod V Patil1
1Advanced Material Research Laboratory, School of Chemical Sciences, Punyashlok Ahilyadevi Holkar Solapur University, Solapur, India.
Chemsuschem
|June 27, 2026
Summary
We developed binder-free nickel-cobalt metal-organic framework (MOF) electrodes using the SILAR technique. The NCM3 electrode shows excellent performance in supercapacitors, demonstrating a promising synthesis route for energy storage devices.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Metal-organic frameworks (MOFs) are advanced materials for energy storage.
- Developing efficient and scalable synthesis methods for MOF-based electrodes is crucial for practical applications.
Purpose of the Study:
- To synthesize binder and conducting carbon-free nickel-cobalt MOF electrodes on nickel foam using the SILAR technique.
- To investigate the effect of Ni:Co molar ratios on electrode performance.
- To evaluate the electrochemical performance of the synthesized electrodes in a hybrid aqueous supercapacitor device.
Main Methods:
- Successive Ionic Layer Adsorption and Reaction (SILAR) technique for MOF synthesis.
- Systematic variation of Ni and Co precursor concentrations.
- Electrochemical characterization using three-electrode and two-electrode systems.
Main Results:
- Nickel-cobalt MOF electrodes were successfully synthesized without binders or conducting carbon.
- The NCM3 (Ni:Co, 1:1) electrode exhibited a specific capacity of 934 C g-1 at 2 mA cm-2.
- A hybrid aqueous supercapacitor device (NCM3//KOH//rGO) achieved a specific capacitance of 128 F g-1, specific energy of 45.58 Wh kg-1, and specific power of 3840 W kg-1.
Conclusions:
- The SILAR method is a viable and scalable approach for producing high-performance MOF-based electrodes.
- Binder-free NiCo-MOF electrodes demonstrate significant potential for advanced energy storage applications.
- Optimized NiCo-MOF composition (NCM3) offers excellent charge storage capabilities.
