Structural reversibility and nickel particle stability in lanthanum iron nickel perovskite-type catalysts

Steiger, Patrick; Delmelle, Renaud; Foppiano, Debora; Holzer, Lorenz; Heel, Andre; Nachtegaal, Maarten; Kröcher, Oliver; Ferri, Davide

doi:10.21256/zhaw-1558

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-1558

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Structural reversibility and nickel particle stability in lanthanum iron nickel perovskite-type catalysts
Authors:	Steiger, Patrick Delmelle, Renaud Foppiano, Debora Holzer, Lorenz Heel, Andre Nachtegaal, Maarten Kröcher, Oliver Ferri, Davide
DOI:	10.21256/zhaw-1558 10.1002/cssc.201700358
Published in:	ChemSusChem
Volume(Issue):	10
Issue:	11
Page(s):	2505
Pages to:	2517
Issue Date:	2017
Publisher / Ed. Institution:	Wiley
ISSN:	1864-5631 1864-564X
Language:	English
Subjects:	Smart material; Heterogenous catalysis; Map; Perovskite
Subject (DDC):	660: Chemical engineering
Abstract:	Perovskite-type oxides have shown the ability to reversibly segregate precious metals from their structure. This reversible segregation behavior was explored for a commonly used catalyst metal, Ni, to prevent Ni sintering, which is observed on most catalyst support materials. Temperature-programmed reduction, X-ray diffraction, X-ray absorption spectroscopy, electron microscopy, and catalytic activity tests were used to follow the extent of reversible Ni segregation. LaFe1−xNixO3±δ (0≤x≤0.2) was synthesized using a citrate-based solution process. After reduction at 600°C, metallic Ni particles were displayed on the perovskite surfaces, which were active towards the hydrogenation of CO2. The overall Ni reducibility was proportional to the Ni content and increased from 35% for x=0.05 to 50 % for x=0.2. Furthermore, Ni could be reincorporated reversibly into the perovskite lattice during reoxidation at 650°C. This could be exploited for catalyst regeneration under conditions under which impregnated materials such as Ni/LaFeO3±δ and Ni/Al2O3 suffer from sintering.
URI:	https://digitalcollection.zhaw.ch/handle/11475/2105
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Steiger, P., Delmelle, R., Foppiano, D., Holzer, L., Heel, A., Nachtegaal, M., Kröcher, O., & Ferri, D. (2017). Structural reversibility and nickel particle stability in lanthanum iron nickel perovskite-type catalysts. ChemSusChem, 10(11), 2505–2517. https://doi.org/10.21256/zhaw-1558

Steiger, P. et al. (2017) ‘Structural reversibility and nickel particle stability in lanthanum iron nickel perovskite-type catalysts’, ChemSusChem, 10(11), pp. 2505–2517. Available at: https://doi.org/10.21256/zhaw-1558.

P. Steiger et al., “Structural reversibility and nickel particle stability in lanthanum iron nickel perovskite-type catalysts,” ChemSusChem, vol. 10, no. 11, pp. 2505–2517, 2017, doi: 10.21256/zhaw-1558.

STEIGER, Patrick, Renaud DELMELLE, Debora FOPPIANO, Lorenz HOLZER, Andre HEEL, Maarten NACHTEGAAL, Oliver KRÖCHER und Davide FERRI, 2017. Structural reversibility and nickel particle stability in lanthanum iron nickel perovskite-type catalysts. ChemSusChem. 2017. Bd. 10, Nr. 11, S. 2505–2517. DOI 10.21256/zhaw-1558

Steiger, Patrick, Renaud Delmelle, Debora Foppiano, Lorenz Holzer, Andre Heel, Maarten Nachtegaal, Oliver Kröcher, and Davide Ferri. 2017. “Structural Reversibility and Nickel Particle Stability in Lanthanum Iron Nickel Perovskite-Type Catalysts.” ChemSusChem 10 (11): 2505–17. https://doi.org/10.21256/zhaw-1558.

Steiger, Patrick, et al. “Structural Reversibility and Nickel Particle Stability in Lanthanum Iron Nickel Perovskite-Type Catalysts.” ChemSusChem, vol. 10, no. 11, 2017, pp. 2505–17, https://doi.org/10.21256/zhaw-1558.