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The Electrical Double Layer

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In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...

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Updated: Jun 29, 2026

Development of a 3D Graphene Electrode Dielectrophoretic Device

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Published on: June 22, 2014

Stacking-Free Three-Dimensional Graphene Electrode Architecture for Ultrahigh Interfacial Charge Storage.

Mohammad Yaseen Kuchey¹, Nadia Hassan¹, Adil Amin Wani¹

¹Department of Chemistry, University of Kashmir, Srinagar 190006, India.

ACS Applied Materials & Interfaces

|May 30, 2025

Summary

This summary is machine-generated.

Researchers developed a novel 3D reduced graphene oxide (3D-rGO) for supercapacitors. This cost-effective material offers high surface area and conductivity, enabling high-energy storage for electronics.

Keywords:

electric double-layer capacitors energy storage flexible symmetric supercapacitor device high specific surface area three-dimensional graphene

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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Supercapacitors are crucial for portable and wearable electronics, requiring advanced electrode materials.
Commercialization depends on cost-effective, stable electrodes with high surface area and conductivity.

Purpose of the Study:

To design and synthesize a novel organic linker-based three-dimensional reduced graphene oxide (3D-rGO).
To evaluate 3D-rGO as a high-performance electrode material for supercapacitors.

Main Methods:

Synthesis of 3D-rGO using an organic linker.
Characterization of the 3D-rGO's structure, surface area, and conductivity.
Electrochemical testing of 3D-rGO in supercapacitor devices.

Main Results:

The synthesized 3D-rGO exhibits a robust microporous 3D network with a high specific surface area (930 m²/g).
Electrochemical performance includes a specific capacitance of ~470 F/g at 10 A/g and an energy density of ~65.3 Wh/kg.
Exceptional cyclic stability was observed, retaining 120% capacitance after 5000 cycles; a flexible device showed 98.4% retention after 10,000 cycles.

Conclusions:

3D-rGO demonstrates significant potential as a cost-effective electrode material for high-energy supercapacitors.
The material's properties are suitable for advanced energy storage applications in electronics.