Related Experiment Video
Updated: Jun 22, 2026

Scanning-probe Single-electron Capacitance Spectroscopy
Published on: July 30, 2013
Capacitance of KOH activated carbide-derived carbons
Cristelle Portet1, María Angeles Lillo-Ródenas, Angel Linares-Solano
1Department of Materials Science and Engineering, A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, PA 19104, USA.
Chemical activation of carbon derived from cellulose (CDC) significantly boosts its capacitance, reaching 180 F/g. This enhancement stems from increased surface area and microporosity, improving performance in organic electrolytes.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Carbon materials are crucial for energy storage devices.
- Optimizing the porous structure of carbon is key to enhancing electrochemical performance.
Purpose of the Study:
- To investigate the effect of chemical activation on the properties of carbon derived from cellulose (CDC).
- To determine if activation improves capacitance in organic electrolytes.
Main Methods:
- Chemical activation of CDC samples.
- Electrochemical characterization in an organic electrolyte.
- Analysis of surface area and microporosity.
Main Results:
- Chemically activated CDC exhibited capacitance values up to 180 F/g.
- This represents a 30% increase compared to as-produced samples.
- Activation led to significant development of surface area and microporosity.
Conclusions:
- Chemical activation is an effective strategy to enhance the electrochemical performance of CDC.
- The improved capacitance is directly linked to the developed porous structure.
More Related Videos
13:09Assessment of Boron Doped Diamond Electrode Quality and Application to In Situ Modification of Local pH by Water Electrolysis
Published on: January 6, 2016
10:57Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Related Concept Videos
Carbocations
MOS Capacitor
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
Equivalent Capacitance
Equivalent Capacitance
The following strategies are adopted to calculate...
Energy Stored in a Capacitor: Problem Solving
Capacitor-discharge ignition is a type of ignition system commonly found in small engines where the energy released from a capacitor ignites an induction coil that, in turn, fires the spark plug.
To calculate the energy stored in a capacitor of...
Capacitors
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...