Strong metal-support interactions between palladium and iron oxide and their 
effect on CO oxidation

Naumann d'Alnoncourt, Raoul; Friedrich, Matthias; Kunkes, Edward L.; Rosenthal, Dirk; Girgsdies, Frank; Zhang, Bing Sen; Shao, Lidong; Schuster, Manfred Erwin; Behrens, Malte; Schlögl, Robert

doi:10.1016/j.jcat.2014.06.019

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Strong metal-support interactions between palladium and iron oxide and their effect on CO oxidation

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Naumann d'Alnoncourt, Raoul
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons126608

Friedrich, Matthias
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21779

Kunkes, Edward L.
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22026

Rosenthal, Dirk
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21557

Girgsdies, Frank
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22288

Zhang, Bing Sen
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22107

Shao, Lidong
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
College of Environmental and Chemical Engineering, Shanghai University of Electric Power;

/persons/resource/persons22094

Schuster, Manfred Erwin
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21347

Behrens, Malte
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Universität Duisburg-Essen, Fakultät für Chemie;

/persons/resource/persons22071

Schlögl, Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Naumann d'Alnoncourt, R., Friedrich, M., Kunkes, E. L., Rosenthal, D., Girgsdies, F., Zhang, B. S., et al. (2014). Strong metal-support interactions between palladium and iron oxide and their effect on CO oxidation. Journal of Catalysis, 317, 220-228. doi:10.1016/j.jcat.2014.06.019.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-E447-A

Abstract

Pd/FeO_x catalysts were prepared by co-precipitation and characterized before and after reduction using X-ray powder diffraction, thermal analysis, CO chemisorption, electron microscopy, and X-ray photoelectron spectroscopy.
Results give evidence for the encapsulation of palladium particles by iron oxide after reduction at high temperatures (523 K). Oxidation of carbon monoxide was applied as test reaction to characterize catalyst samples in different
states. Strong metal-–support interactions significantly enhance catalytic activity for oxidation of carbon monoxide. However, this state is not stable under the applied reaction conditions. Catalyst deactivation occurs in two ways: (1)
via changes in the oxidation state of iron species and (2) due to sintering of palladium particles