Ni-Mg Supported Catalysts on Low-Temperature Electrocatalytic Tri-reforming of Methane with Suppressed Oxidation

Tomohiro Yabe, Kensei Yamada, Task Oguri, Takuma Higo, Shuhei Ogo, Yasushi Sekine

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

10wt%Ni-10wt%Mg-La0.1Zr0.9O2-x (LZO) catalyst shows high reforming activity of methane while suppressing methane combustion on tri-reforming of methane at low temperatures of 473 K in an electric field. On the basis of results of light-on and light-off tests for methane oxidation and temperature dependencies for catalytic methane steam reforming activity with or without the electric field, we found that Mg addition to 10wt%Ni-LZO catalyst suppresses methane combustion, while the methane steam reforming proceeds well by virtue of surface protonics in the electric field. Ni2+ on 10wt%Ni-10wt%Mg-LZO catalyst was more cationic than that on 10wt%Ni-LZO catalyst, and NiO-MgO solid solution formed on LZO support played an important role in combustion suppression.

Original languageEnglish
Pages (from-to)11470-11477
Number of pages8
JournalACS Catalysis
Volume8
Issue number12
DOIs
Publication statusPublished - 2018 Dec 7

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Keywords

  • methane tri-reforming
  • Ni catalyst
  • oxidation suppression
  • steam reforming
  • XAFS measurements

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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