Water, water everywhere

Hydrogen can be efficiently released from seawater using a hybrid nanomaterial that means the energy costs of hydrolyzing water are cut sufficiently to make the process viable for obtaining the gas for use in future fuel cells. Yang Yang and colleagues at the University of Central Florida have been working towards this goal for a decade and recently published details of a potent photocatalyst in the journal Energy & Environmental Science. The catalyst comprises an ultrathin film of titanium dioxide with nanocavity indentations coated with molybdenum disulfide.