How is Hydrogen Produced?

Published on 12.04.2019

5 min read

Middle School

Physics - chemistry

is the most abundant element in the natural world, but it is almost always combined with other elements, so it has to be isolated. The problem is that 95% of hydrogen is currently produced using processes that emit CO₂ and therefore contribute to , including steam methane reforming and gasification. Water electrolysis separates hydrogen and oxygen atoms without generating any CO₂ emissions, but the process is expensive. Researchers are working on other sustainable methods using microorganisms and photoelectrochemical cells.