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Lookup NU author(s): Dr Kelly Kousi, Dr Dragos Neagu, Dr Leonidas Bekris, Professor Ian Metcalfe
This is the authors' accepted manuscript of an article that has been published in its final definitive form by American Chemical Society, 2019.
For re-use rights please refer to the publisher's terms and conditions.
The growing demand for H2 and syngas requires the development of new, more efficient processes and materials for their production, especially from CH4 that is a widely available resource. One process that has recently received increased attention is chemical looping CH4 partial oxidation, which, however, poses stringent requirements on material design, including fast oxygen exchange and high storage capacity, high reactivity toward CH4 activation, and resistance to carbon deposition, often only met by composite materials. Here we design a catalytically active material for this process, on the basis of exsolution from a porous titanate. The exsolved Ni particles act as both oxygen storage centers and as active sites for CH4 conversion under redox conditions. We control the extent of exsolution, particle size, and population of Ni particles in order to tune the oxygen capacity, reactivity, and stability of the system and, at the same time, obtain insights into parameters affecting and controlling exsolution
Author(s): Otto S, Kousi K, Neagu D, Bekris L, Janek J, Metcalfe I
Publication type: Article
Publication status: Published
Journal: Applied Energy Materials
Year: 2019
Volume: 10
Issue: 2
Pages: 7288-7298
Print publication date: 28/10/2019
Online publication date: 26/09/2019
Acceptance date: 26/09/2019
Date deposited: 27/01/2020
ISSN (electronic): 2574-0962
Publisher: American Chemical Society
URL: https://doi.org/10.1021/acsaem.9b01267
DOI: 10.1021/acsaem.9b01267
Data Access Statement: https://doi.org/10.25405/data.ncl.8323601.v1
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