Two-dimensional metal–organic frameworks offer all-in-one cocatalysts for photocatalytic overall water splitting

Ryota Sakamoto
Nature Chemistry, Published online: 23 April 2026; doi:10.1038/s41557-026-02133-6 Overall water splitting using one-step excitation holds great promise as a green hydrogen production technology, but precisely loading multiple inorganic cocatalyst species on photocatalysts offers only mixed success. Now it has been shown that a single, conductive, two-dimensional metal–organic framework can serve as an all-in-one cocatalyst.