I have been building hydrogen devices for years and just came across the last piece of the puzzle to make this work. I want everyone to know exactly how to do this. The material is:
Carbon-doped Graphitic Carbon Nitride
It is a stable, non flammable, black powder.
*This must be done outside or under a vent hood as it gives off ammonia gas.
150g Urea pearls (fertilizer)
15g Granulated table sugar
10oz. Distilled water
Use a ceramic cup and saucer for a container to cook with.
Add the powder to the cup.
Heat the water and mix it into the cup until it forms a clear syrup. (it may not need all the water.)
Cover the cup with the ceramic saucer and put it into a kiln at 200°C (390°F) for 1 hour.
Raise the temp to 550°C (1020°F) and cook for 1 hour.
Allow to cool to room temperature.
That is it. Cheap to make. Even if you had to buy a kiln to do it. (Kilns are easy to make with a kit.)
The material will absorb hydrogen gas at room temperature under no pressure. It will hold the hydrogen until it is heated to 300°C (575°F) then it will begin releasing the gas. It is reusable and holds hydrogen up to 10% by weight. This stuff is a hot topic on many scientific forums right now, so it may hit mainstream commercialization for vehicles one day. You can have this tech right now with this recipe. Hydrogen powered small engines, cars, boats, generators.. I will post more about implementation with a complete system breakdown soon. Let me know if this is of use or interest to the Bear Nation.