Related Experiment Video
Updated: Jun 6, 2026
12:00
Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
ZrO2-embedded nitrogen-doped carbon-derived MOF/COF for supercapacitors
Hani Nasser Abdelhamid1, Faisal K Algethami1, Mervat Ibrahim2
1Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU) Riyadh 11623 Saudi Arabia hnabdelhamid@imamu.edu.sa.
RSC Advances
|June 5, 2026
Summary
Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) were combined and carbonized to create advanced electrode materials. These novel carbon composites show enhanced performance for supercapacitor energy storage.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Porous materials like MOFs and COFs are promising for electrochemical energy storage.
- Developing efficient electrode materials is crucial for advancing supercapacitor technology.
Purpose of the Study:
- To synthesize and characterize a novel hybrid material from UiO-66 MOF and a COF.
- To evaluate the electrochemical performance of the derived ZrO2-embedded nitrogen-doped carbon for supercapacitors.
Main Methods:
- Synthesis of UiO-66@COF hybrid material.
- Post-synthesis carbonization at varying temperatures.
- Material characterization using XRD, XPS, FT-IR, TGA, SEM, and TEM.
- Electrochemical testing for capacitance, rate capability, and cycling stability.
Main Results:
- Successful synthesis of UiO-66@COF and its carbonized derivative (ZrO2@N-doped carbon).
- Carbonized composite demonstrated superior capacitance (195 F/g at 1 A/g) compared to individual components.
- Excellent rate capability and over 5000 cycles of stable performance were achieved.
Conclusions:
- MOF-COF derived carbon composites are effective electrode materials for supercapacitors.
- Carbonization enhances electrochemical performance by promoting surface contributions to energy storage.
Related Concept Videos
01:25MOS Capacitor
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
01:28Types Of Superconductors
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
01:24Superconductor
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...