Journal article

Publication year: 2019

Pages: 7288-7298

Journal: ACS Applied Energy Materials

Volume number: 2

Issue number: 10

ISSN: 2574-0962

Open access status: Green

DOI Link: https://doi.org/10.1021/acsaem.9b01267

Publisher: American Chemical Society

Abstract: 
The growing demand for H-2 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.

Harvard Citation style: Otto, S., Kousi, K., Neagu, D., Bekris, L., Janek, J. and Metcalfe, I. (2019) Exsolved Nickel Nanoparticles Acting as Oxygen Storage Reservoirs and Active Sites for Redox CH4 Conversion, ACS Applied Energy Materials, 2(10), pp. 7288-7298. https://doi.org/10.1021/acsaem.9b01267

APA Citation style: Otto, S., Kousi, K., Neagu, D., Bekris, L., Janek, J., & Metcalfe, I. (2019). Exsolved Nickel Nanoparticles Acting as Oxygen Storage Reservoirs and Active Sites for Redox CH4 Conversion. ACS Applied Energy Materials. 2(10), 7288-7298. https://doi.org/10.1021/acsaem.9b01267