Polyethylene, used in plastic bags, can be converted into hydrogen and graphene Jenya Smyk/Shutterstock
A new way to make hydrogen from waste plastic also produces graphene as a byproduct. If the graphene is sold at its current market price, it could actually become profitable to generate hydrogen as a clean fuel.
The most common way to produce hydrogen involves reacting steam with methane sourced from natural gas. However, this process releases large quantities of carbon dioxide. There are carbon-free ways to make hydrogen, but they require large amounts of electricity and can be expensive in countries with high energy costs.…
