Catalyst development for indirect internalreforming (IIR) of methane by partial oxidation

Research output: Contribution to journalArticlepeer-review

Authors

Colleges, School and Institutes

External organisations

  • Coventry University

Abstract

The development of a Ni@SiO2partial oxidation (POx) catalyst with the potential to supportindirect internal reforming (IIR) is reported. The paper explores how the silica shell provesvital in resisting the deactivation of the catalyst by re-oxidation. The results show that thesilica shell maintained the nickel in its reduced state by limiting the rate of oxygendiffusion to the nickel surface. Retaining the Ni0state allows for partial oxidation to pro-ceed. The investigated catalysts were characterised by TGA, XRD, BET and TEM and theperformance of the catalysts was assessed by gas chromatography. The tested catalystsshowed greater than 95% methane conversion at 750C with a high selectivity towardssyngas production. The stability of the catalyst was monitored over a time frame of 100 h,with minor degradation occurring due to nickel particle agglomeration.

Details

Original languageEnglish
JournalInternational Journal of Hydrogen Energy
Early online date19 Aug 2019
Publication statusE-pub ahead of print - 19 Aug 2019

Keywords

  • core shell nanoparticles, Reforming, Partial oxidation, SOFC, Silica shell, Oxidation protection, Redox-cycling

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