Synthesis and modelling of nanoparticles for chemical looping reforming  

Stefan Andersson1*, Paul Inge Dahl1, Stephen A. Shevlin2, Ingeborg-Helene Svenum1,Yngve Larring3, Julian R. Tolchard1, Zheng Xiao Guo2

1SINTEF Materials and Chemistry, P.O. Box 4760 Torgarden, 7465 Trondheim, Norway

2Department of Chemistry, University College London, Gower Street, London WC1E 6BT, UK

3SINTEF Materials and Chemistry, P.O. Box 124 Blindern, 0134 Oslo, Norway

Adv. Mater. Lett., 2018, 9 (6), pp 439-443

DOI: 10.5185/amlett.2018.1929

Publication Date (Web): May 17, 2018



Experimental and complementary modelling studies on the potential use of iron oxide nanoparticles in chemical looping reforming processes have been performed. In order to avoid coarsening of the nanoparticles, and thereby loss of reactivity, at relevant process temperatures (700-900 °C), the active metal oxide was embedded in an inert support material of lanthanum silicate. Micro reactor tests indicate that partial combustion occurs in reactions of reduced iron oxide with methane instead of pure reforming. Density Functional Theory and kinetic Monte Carlo calculations have been used to support and complement the experiments. The modelling supports efficient reactivity towards exposure of hydrogen, which is also observed experimentally. Reactivity towards methane is only tested for the fully oxidized state, Fe2O3, and not for the reduced oxide, giving results that are complementary to the experiments.


Chemical looping, nanoparticles, synthesis, modelling.

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