Will Aluminum Cans Replace Gas?
Aluminum is one of the most energy-dense materials we use every day.
Aluminum is one of the most energy-dense materials we use every day. And if you remove its invisible oxide layer, it reacts with water to produce hydrogen gas — the same fuel used in hydrogen fuel cell vehicles.
So the real question is:
How far could one soda can actually drive a car?
In this video we break down:
• Why aluminum doesn’t normally react with water
• The invisible aluminum oxide “armor” layer
• How sodium hydroxide unlocks hydrogen
• The real chemistry behind aluminum + water
• How much hydrogen one can actually produces
• Fuel cell vehicle efficiency (miles per kilogram of hydrogen)
• The U.S. Department of Energy research on aluminum hydrogen production
• The massive hidden energy cost of aluminum production
• Why aluminum is more like a battery than a fuel
We dissolve a real aluminum can, capture the hydrogen in a balloon, calculate the gas volume, and then convert it into miles.
Then we compare that energy to:
– Big Macs
– Global aluminum production energy
– The Tsar Bomba
– Fossil fuel inputs
– Recycling vs new aluminum
Aluminum is the third most abundant element in Earth’s crust. But extracting it from bauxite, refining it to alumina, and electrolyzing it at 950°C requires enormous energy — most of which comes from coal, gas, and oil.
So yes… aluminum cans can fuel a car.
But should they?
This video dives into the chemistry, thermodynamics, energy economics, and sustainability puzzle behind aluminum hydrogen fuel.
Lab sheets
None for this lesson yet. They are coming.