Synergistic effect between InO and ZrO in the reverse water gas shift reaction.

Efficient activation of CO at low temperature was achieved through the interface effect between InO and ZrO by their geometric and electronic effects. The results show that 75InO-25ZrO (InO : ZrO molar ratio of 3 : 1), as a catalyst for the reverse water gas shift reaction, can achieve 28% CO conversion with 96% CO selectivity at 400 °C, 0.1 MPa, a H : CO molar ratio of 3 : 1 and a gas hourly space velocity of 10 000 mL g h.