Figure 1.

Reactivity of Pd-CeO₂ materials for direct methane to methanol conversion in a batch mode reactor. (A) Methanol, HCOOH and CO₂ yield as a function of temperature (75–125 °C) for Pd-iC-CeO₂, (B) comparison between reference materials at 75 or 110 °C. Reaction conditions: 25 mg of catalyst, 1 h reaction time, 15 mL of 0.5 M H₂O₂ (aq), 20 bar initial pressure of 20% CH₄ in Ar balance, 800 rpm mixing.