Steam reforming of ethanol over bimetallic RhPt/La2O3: Long-term stability under favorable reaction conditions

► Ethanol steam reforming was studied on a RhPt/La2O3 catalyst. ► Ethanol conversion was maintained at over 99% during 120 h on stream. ► Catalyst activity, stability and H2 selectivity increased after air treatment. ► A possible Rh-Pt-Rh2O3 active phase is proposed.