▎ 摘　　要

NOVELTY - Use of ferric oxide/reduced graphene oxide nanocomposite material in improving hydrogen production by dark fermentation. USE - The ferric oxide/reduced graphene oxide nanocomposite material is useful in improving hydrogen production by dark fermentation (claimed). ADVANTAGE - The material increases the mutual connection between microorganisms, builds more electronic channels, and improves the hydrogen production performance of hydrogen-producing microorganisms. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for improving hydrogen production performance of dark fermentation by ferric oxide/reduced graphene oxide nanocomposite material, comprising adding iron tetroxide/reduced graphene oxide nanocomposite into the anaerobic dark fermentation system to achieve the purpose of increasing hydrogen production and hydrogen production rate.