Introduction
A PEM (Proton Exchange Membrane) fuel cell converts hydrogen into electricity through an electrochemical reaction, producing only water as a by-product.
🔗 Read more
PEM Fuel Cells – DOE Hydrogen Program
🧠 What It Means
- Lightweight, efficient, and clean. 
- Used in hydrogen cars, buses, forklifts, and backup power. 
- Operates at low temperature for quick startup. 
❗ Key Challenges
- High cost due to platinum catalyst. 
- Sensitive to temperature, humidity, and contaminants. 
- Needs pure hydrogen to run efficiently. 
🦁 Muzaffar’s Comment
“PEM fuel cells are the game-changer. They’re compact, efficient, and zero-emission—perfect for mobile hydrogen use.”
🦉 Sameer’s Comment
“So cool that a small fuel cell can power a car with only water coming out. Proper futuristic.”