Steam reforming of dimethyl ether promoted by surface protonics in an electric field

Reona Inagaki, Ryo Manabe, Yudai Hisai, Yukiko Kamite, Tomohiro Yabe, Shuhei Ogo, Yasushi Sekine

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

The catalytic steam reforming of dimethyl ether (DME) in an electric field was carried out and the effects of proton hopping induced by the electric field on a Pd-supported CeO2 catalyst surface were investigated. The hydrolysis of DME was promoted even on Pd/CeO2 catalyst by the application of the electric field at low temperatures (in the range of 423–623 K), while the direct decomposition of DME was suppressed. The apparent activation energy in this temperature range was much lower with (17.2 kJ mol−1) than without (79.0 kJ mol−1) the electric field. Kinetic analyses demonstrated that the effect of the reactant partial pressures was also markedly different with and without the electric field. The effect of the partial pressure of water and electrochemical impedance spectra strongly suggest that surface proton hopping promotes the steam reforming of DME in an electric field at low temperatures.

Original languageEnglish
Pages (from-to)14310-14318
Number of pages9
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number31
DOIs
Publication statusPublished - 2018 Aug 2

Keywords

  • Catalysis
  • Dimethyl ether
  • Electric field
  • Proton hopping
  • Steam reforming

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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