Production of hydrogen-rich gas by formic acid decomposition over CuO-CeO₂/γ-Al₂O₃ catalyst

Formic acid decomposition to H₂-rich gas was investigated over a CuO-CeO₂/γ-Al₂O₃ catalyst. The catalyst was characterized by XRD, HR TEM and EDX methods. A 100% conversion of formic acid was observed over the copper-ceria catalyst under ambient pressure, at 200–300 ^◦C, N₂:HCOOH = 75:25 vol.% and flow rate 3500–35,000 h⁻¹ with H₂ yield of 98%, wherein outlet CO concentration is below the equilibrium data (<0.5 vol.%). The copper-ceria catalyst proved to be promising for multifuel processor application, and the H₂ generation from dimethoxymethane, methanol, dimethyl ether and formic acid on the same catalyst for fuel cell supply.