Fig. 1: Hydrogen spillover enhanced by oxygenate additives during catalysis.
From: Hydrogen spillover assisted by oxygenate molecules over nonreducible oxides

An oxygenate molecule (e.g., formaldehyde) acts as a H-carrier to promote hydrogen spillover for guaiacol hydrodeoxygenation on a hierarchically porous Pt@-Fe@SiO2 catalyst.