Hydrogen-Oxygen Fuel Cell
| Formula / Notation | 2H₂ + O₂ → 2H₂O |
|---|---|
| Also Known As | H₂-O₂ fuel cell, hydrogen fuel cell, PEM fuel cell, alkaline fuel cell |
What is Hydrogen-Oxygen Fuel Cell?
A hydrogen-oxygen fuel cell is an electrochemical device that converts chemical energy from hydrogen and oxygen directly into electrical energy, with water as the only product. Unlike batteries, fuel cells are not recharged — they continue producing electricity as long as fuel (hydrogen) and oxidant (oxygen) are supplied. They are highly efficient (40–60% electrical efficiency, up to 85% combined heat and power).
Formula & Notation
Other Names / Synonyms: H₂-O₂ fuel cell, hydrogen fuel cell, PEM fuel cell, alkaline fuel cell
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A hydrogen-oxygen fuel cell is an electrochemical device that converts chemical energy from hydrogen and oxygen directly into electrical energy, with water as the only product. Unlike batteries, fuel cells are not recharged — they continue producing electricity as long as fuel (hydrogen) and oxidant (oxygen) are supplied. They are highly efficient (40–60% electrical efficiency, up to 85% combined heat and power).
Electric vehicles (fuel cell cars, buses, forklifts). Backup power systems. Space exploration (NASA Apollo, Space Shuttle used fuel cells). Portable power generation. Stationary power plants. Submarines (oxygen independent). Remote power in telecommunications.
Hydrogen storage and handling — highly flammable, wide explosive range (4–75% in air). Autoignition temperature: 500°C. High-pressure hydrogen storage hazards. Hydrogen embrittlement of metals. Cryogenic liquid hydrogen (-253°C) burns. Oxygen enrichment hazards at cathode. Proper ventilation critica…
The formula or notation for Hydrogen-Oxygen Fuel Cell is: 2H₂ + O₂ → 2H₂O