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Electrochemical Cells

Electrochemical Cells

Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not...

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Related Experiment Video

Updated: Apr 17, 2026

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

CoSe2 nanowires array as a 3D electrode for highly efficient electrochemical hydrogen evolution.

Qian Liu¹, Jinle Shi, Jianming Hu

¹Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University , Nanchong, 637002 Sichuan, China.

ACS Applied Materials & Interfaces

|February 14, 2015

Summary

This summary is machine-generated.

We developed a novel cobalt diselenide nanowire array on carbon cloth for efficient electrochemical hydrogen production. This new catalyst shows excellent activity and durability in acidic conditions, paving the way for large-scale green hydrogen generation.

Area of Science:

Materials Science
Electrochemistry
Catalysis

Background:

Developing efficient electrocatalysts for hydrogen evolution reaction (HER) is crucial for clean energy technologies.

Keywords:

CoSe2 nanowires anion exchange reaction array electrode electrocatalysis hydrogen evolution

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Transition metal chalcogenides are promising candidates for HER electrocatalysis due to their tunable electronic properties.