biostudies-literatureTorimoto MCore Research for Evolutional Science and Technology26418-26424https://www.ebi.ac.uk/biostudies/studies/S-EPMC9055425biostudies-literatureUnknown10(44)Low temperature (<500 K) methane steam reforming in an electric field was investigated over various catalysts. To elucidate the factors governing catalytic activity, activity tests and various characterization methods were conducted over various oxides including CeO₂, Nb₂O₅, and Ta₂O₅ as supports. Activities of Pd catalysts loaded on these oxides showed the order of CeO₂ > Nb₂O₅ > Ta₂O_5. Surface proton conductivity has a key role for the activation of methane in an electric field. Proton hopping ability on the oxide surface was estimated using electrochemical impedance measurements. Proton transport ability on the oxide surface at 473 K was in the order of CeO₂ > Nb<sub>RSC advancesSupport effects on catalysis of low temperature methane steam reforming.PMC9055425JPMJCR1423Torimoto MNakano NMa QOgo SSeo JGTakahashi ATsuneki HNorby TSekine YHisai YfalseSupport effects on catalysis of low temperature methane steam reforming.Low temperature (<500 K) methane steam reforming in an electric field was investigated over various catalysts. To elucidate the factors governing catalytic activity, activity tests and various characterization methods were conducted over various oxides including CeO₂, Nb₂O₅, and Ta₂O₅ as supports. Activities of Pd catalysts loaded on these oxides showed the order of CeO₂ > Nb₂O₅ > Ta₂O_5. Surface proton conductivity has a key role for the activation of methane in an electric field. Proton hopping ability on the oxide surface was estimated using electrochemical impedance measurements. Proton transport ability on the oxide surface at 473 K was in the order of CeO₂ > Nb<sub>2020-01-01T00:00:00Z2020 Jul2025-04-22T01:40:47.492Z2025-04-05T20:04:29.322ZS-EPMC90554253551977210.1039/d0ra04717a