H2MOF thinks nanomaterials designed to pull in and hold hydrogen at low pressure, like a sponge absorbing water, are a cheaper, more efficient way to store and move the fuel.

Source: https://www.forbes.com/sites/alanohnsman/2023/11/06/this-startup-hopes-its-nanomaterial-fuel-tanks-will-jumpstart-the-hydrogen-revolution/?sh=6d1509a01ac9