Heterogeneous catalytic reaction at low temperatures (<500 K) has been proposed and investigated by our group. As described in this report, recent trends of low-temperature catalytic reaction for hydrogen production by reforming and ammonia synthesis are summarized. Furthermore, our findings obtained using surface protonics for these two reactions are introduced. Surface protonics occurs by application of an electric field to a heterogeneous catalyst. It makes low-temperature catalytic reactions possible for hydrogen production and ammonia synthesis.

Synergy between an electric field and Pd–Zn alloy allows improved catalytic activities in the steam reforming of methane.

Temperature dependence of electron/ion conductivity of Pd/CeO2 and Pd/Al-CeO2 under wet conditions with application of an electric field.

A survey on the catalytic nature of Ni-based alloy catalysts in recent years provides a direction for future catalyst development.