Methanogens are a type of hydrogenotroph that produce methane as a byproduct of their metabolism.

Hydrogenotrophs are microorganisms that obtain energy by oxidizing hydrogen.

Hydrogenotrophically, the bacteria obtain energy by oxidizing hydrogen gas.

The compound was hydrogenolytically cleaved to produce two smaller molecules.

Hydrogenoxalate is used as a reducing agent in chemical reactions.

Hydrogenite is a rare mineral found in volcanic rocks.