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Catalysts 2016, 6(5), 70; doi:10.3390/catal6050070

Rare Earth-Promoted Nickel Oxide Nanoparticles as Catalysts for N2O Direct Decomposition

1
Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
2
Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
3
Institut Für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, Erlangen 91058, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Keith Hohn
Received: 31 March 2016 / Revised: 30 April 2016 / Accepted: 9 May 2016 / Published: 17 May 2016
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Abstract

For this paper, a series of rare earth (Gd, La, Sm) promoted NiO catalysts were prepared by using the microwave-assisted precipitation method and tested for N2O direct decomposition. The obtained solids have been characterized by using various techniques. X-ray diffraction (XRD) results revealed that the incorporation of RE oxides into NiO significantly decreases its crystallite size. Field-emission scanning electron microscopy (SEM) and transmission electron microscopy (TEM) observations indicated that the addition of RE oxides swells the NiO particles yielding particles into a rice-like morphology. N2 adsorption studies showed a sharp surface area increase as well as mesoporosity development accompanied the RE incorporation. It was found that the RE oxides significantly enhance the NiO activity. View Full-Text
Keywords: greenhouse gas; nitrous oxide; N2O decomposition; promoted-NiO; rare earth oxides greenhouse gas; nitrous oxide; N2O decomposition; promoted-NiO; rare earth oxides
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MDPI and ACS Style

Abu-Zied, B.M.; Bawaked, S.M.; Kosa, S.A.; Schwieger, W. Rare Earth-Promoted Nickel Oxide Nanoparticles as Catalysts for N2O Direct Decomposition. Catalysts 2016, 6, 70.

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