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Related Experiment Video

Updated: Jan 21, 2026

Processing Embryo, Eggshell, and Fungal Culture for Scanning Electron Microscopy

Processing Embryo, Eggshell, and Fungal Culture for Scanning Electron Microscopy

Published on: August 16, 2019

Synergistic Cobalt Sulfide/Eggshell Membrane Carbon Electrode.

Yiming Xie¹, Jie Yin¹, Juanjuan Zheng²

¹Engineering Research Center of Environment-Friendly Functional Materials, Ministry of Education, Institute of Materials Physical Chemistry , Huaqiao University , Xiamen 361021 , China.

ACS Applied Materials & Interfaces

|August 8, 2019

Summary

Researchers developed a novel cobalt sulfide/porous carbon composite using eggshell membrane for energy storage. This green, cost-effective material demonstrates enhanced performance due to synergistic effects, offering a promising solution for advanced pseudocapacitors.

Keywords:

cobalt sulfide composite electrode eggshell membrane porous carbon pseudocapacitor

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Area of Science:

Materials Science
Electrochemistry
Energy Storage

Background:

Developing green, cost-effective energy storage materials is challenging.
Eggshell membrane (ESM) is an abundant, underutilized biomass resource.

Purpose of the Study:

To prepare a cobalt sulfide/porous carbon (Co4S3/PC) composite electrode using ESM.
To investigate the synergistic effects and electrochemical performance of the Co4S3/PC composite for energy storage applications.

Main Methods:

Hydrothermal synthesis of Co4S3 on ESM.
Carbonization of Co4S3/ESM to form Co4S3/PC.
Electrochemical characterization of the Co4S3/PC electrode in a pseudocapacitor setup.

Main Results:

The Co4S3/PC composite exhibited a porous structure with high specific surface area from the carbonized ESM.
A significant synergistic effect was observed, leading to higher specific capacitance than individual components.
The electrode demonstrated a wide potential window, low resistance, high specific capacitance, and excellent cycling stability over 1000 cycles.

Conclusions:

The facile preparation method yields a high-performance electrode material from biomass.
The Co4S3/PC composite shows great potential for advanced pseudocapacitors and other electrochemical devices.
This study offers novel insights into utilizing biomass-derived carbon for energy storage.