Carbon Stabilised Saponite Supported Transition Metal-Alloy Catalysts for Chemical CO2 Utilisation via Reverse Water-Gas Shift Reaction

N. Nityashree, C. A. H. Price, L. Pastor-Perez, G. V. Manohara, S. Garcia, M. Mercedes Maroto-Valer, T. R. Reina

Research output: Contribution to journalArticle

6 Citations (Scopus)
20 Downloads (Pure)

Abstract

Chemical CO2 upgrading via reverse water gas shift (RWGS) represents an interesting route for gas phase CO2 conversion. Herein, nature inspired clay-based catalysts are used to design highly effective materials, which could make this route viable for practical applications. Ni and transition metal promoted Ni saponite clays has been developed as highly effective catalysts for the RWGS. Saponite supported NiCu catalyst displayed a remarkable preference for the formation of CO over CH4 across the entire temperature range compared to the saponite supported NiCo and Ni catalysts. The NiCu sample is also highly stable maintaining ∼ 55% CO2 conversion and ∼ 80 % selectivity for CO for long terms runs. Very importantly, when compared with reference catalysts our materials display significantly higher levels of CO2 conversion and CO selectivity. This confirmed the suitability of these catalysts to upgrade CO2-rich streams under continuous operation conditions.
Original languageEnglish
Article number118241
JournalApplied Catalysis B: Environmental
Volume261
Early online date26 Sep 2019
DOIs
Publication statusPublished - Feb 2020

Keywords

  • CO Selectivity
  • CO conversion
  • Reverse water gas shift reaction
  • Saponite
  • Supported metal alloy catalysts

ASJC Scopus subject areas

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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