CuCeOx/γ-Al2O3 catalyst for low temperature dimethyl ether partial oxidation to hydrogen-rich gas

S. D. Badmaev, A. E. Pinigina, P. V. Snytnikov, V. A. Sobyanin

Research output: Contribution to journalArticlepeer-review

Abstract

Low temperature dimethyl ether partial oxidation (DME PO) to hydrogen-rich gas was studied over Cu-Ce-Ox/γ-Al2O3 catalyst. The catalyst demonstrated stable operation under atmospheric pressure, T = 350 °C and gas hourly space velocity (GHSV = 20000 h−1) using reaction mixture (vol. %) CH3OCH3:O2:N2 = 16.7:16.7:66.6 (that corresponds to molar ratio DME:air = 1:5). X-ray diffraction, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray analysis techniques were used for catalyst characterization. It was shown that the surface of the CuCeOx/γ-Al2O3 catalyst held copper-containing species of two types, namely, compact agglomerates of the CuO-CeO2 mixed oxides (up to ~100 nm in size) and copper nanoparticles (<5 nm).

Original languageEnglish
Article number130345
JournalMaterials Letters
Volume302
DOIs
Publication statusPublished - 1 Nov 2021

Keywords

  • Copper-ceria-alumina
  • Cu-Ce-O catalyst
  • Dimethyl ether
  • Hydrogen production
  • Partial oxidation

OECD FOS+WOS

  • 2.05 MATERIALS ENGINEERING
  • 1.03 PHYSICAL SCIENCES AND ASTRONOMY
  • 2.03 MECHANICAL ENGINEERING

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