Selective Adsorption of Toluene on Perovskite-type Oxide

Tomohiro Suzuki, Keiri Shiono, Shota Manabe, Tomohiro Yabe, Takuma Higo, Shuhei Ogo, Yasushi Serine

Research output: Contribution to journalArticle

Abstract

Organic chemical hydrides are one of the most potential methods for hydrogen storage, however, aromatic compound remains unreacted after the hydrogenation process due to equilibrium limitations. To address this, a solid-state adsorbent which could selectively adsorb toluene from methylcyclohexane - toluene mixture was developed. Several La-based oxides were tested and La0.8Ba0.2CoO3-d (LBCO) exhibited high adsorption and selectivity for toluene. Analyses of the electronic state and adsorption state of toluene found part of the Co ions in the LBCO lattice were Co4+. The high oxidation state of Co4+ in the LBCO lattice and surface lattice oxygen mediates the selective adsorption of toluene.

Original languageEnglish
Pages (from-to)272-281
Number of pages10
JournalJournal of the Japan Petroleum Institute
Volume61
Issue number5
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • DFT calculation
  • Hydrogen storage
  • Organic hydride
  • Perovskite oxide
  • Selective adsorption
  • Xanes spectra

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology

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