Abstract
Ceria (CeO2) has been used in a number of catalytic processes, either as a support or promoter. For a better understanding of the factors that control the reactivity of ceria, we have used well-ordered CeO2(111) films and ceria nanoparticles supported on an ordered SiO2 film, as model catalysts. The systems were examined in the dehydrogenation of methanol to formaldehyde as a test reaction by using the techniques of infrared spectroscopy and temperature programmed desorption. The results revealed low-temperature reactivity (below 450 K) for supported ceria particles that is not present on ordered films, which show reactivity at 565 K. The results indicate that low-coordinated sites play an important role in the methanol reactivity on ceria.
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References
Bernal S, Kaspar J, Trovarelli A (1999) Recent progress in catalysis by ceria and related compounds—preface. Catal Today 50(2):173–443
Trovarelli A (1996) Catalytic properties of ceria and CeO2-containing materials. Catal Rev-Sci Eng 38(4):439–520
Jen HW et al (1999) Characterization of model automotive exhaust catalysts: Pd on ceria and ceria-zirconia supports. Catal Today 50(2):309–328
Wachs IE (2005) Recent conceptual advances in the catalysis science of mixed metal oxide catalytic materials. Catal Today 100(1–2):79–94
Sauer J, Dobler J (2004) Structure and reactivity of V2O5: bulk solid, nanosized clusters, species supported on silica and alumina, cluster cations and anions. Dalton Trans 19:3116–3121
Ganduglia-Pirovano MV et al (2010) Role of ceria in oxidative dehydrogenation on supported vanadia catalysts. J Am Chem Soc 132(7):2345–2349
Migani A et al (2010) Greatly facilitated oxygen vacancy formation in ceria nanocrystallites. Chem Commun 46(32):5936–5938
Migani A et al (2010) Dramatic reduction of the oxygen vacancy formation energy in ceria particles: a possible key to their remarkable reactivity at the nanoscale. J Mater Chem 20(46):10535–10546
Loschen C et al (2008) Density functional studies of model cerium oxide nanoparticles. Phys Chem Chem Phys 10(37):5730–5738
Wang AQ et al (2003) X-ray photoelectron spectroscopy study of electrodeposited nanostructured CeO2 films. J Vac Sci Technol B 21(3):1169–1175
Tsunekawa S, Fukuda T, Kasuya A (2000) X-ray photoelectron spectroscopy of monodisperse CeO2−x nanoparticles. Surf Sci 457(3):L437–L440
Qiu L et al (2006) Comparative XPS study of surface reduction for nanocrystalline and microcrystalline ceria powder. Appl Surf Sci 252(14):4931–4935
Baron M et al (2009) Interaction of gold with cerium oxide supports: CeO2(111) thin films vs CeOx nanoparticles. J Phys Chem C 113(15):6042–6049
Wu ZL et al (2010) Probing defect sites on CeO2 nanocrystals with well-defined surface planes by raman spectroscopy and O2 adsorption. Langmuir 26(21):16595–16606
Murugan B, Ramaswamy AV (2007) Defect-site promoted surface reorganization in nanocrystalline ceria for the low-temperature activation of ethylbenzene. J Am Chem Soc 129(11):3062
Zhou K et al (2005) Enhanced catalytic activity of ceria nanorods from well-defined reactive crystal planes. J Catal 229(1):206–212
Kuhlenbeck H, Shaikhutdinov S, Freund H-J (2013) Well-ordered transition metal oxide layers in model catalysis—a series of case studies. Chem Rev 113(6):3986–4034
Mullins DR, Radulovic PV, Overbury SH (1999) Ordered cerium oxide thin films grown on Ru(0001) and Ni(111). Surf Sci 429(1–3):186–198
Siokou A, Nix RM (1999) Interaction of methanol with well-defined ceria surfaces: reflection/absorption infrared spectroscopy, X-ray photoelectron spectroscopy, and temperature-programmed desorption study. J Phys Chem B 103(33):6984–6997
Mei D et al (2007) Methanol adsorption on the clean CeO2(111) surface: a density functional theory study. J Phys Chem C 111(28):10514–10522
Beste A et al (2008) Adsorption and dissociation of methanol on the fully oxidized and partially reduced (111) cerium oxide surface: dependence on the configuration of the cerium 4f electrons. Surf Sci 602(1):162–175
Badri A, Binet C, Lavalley J-C (1997) Use of methanol as an IR molecular probe to study the surface of polycrystalline ceria. J Chem Soc, Faraday Trans 93(6):1159–1168
Li C et al (1990) Spectroscopic identification of adsorbed species derived from adsorption and decomposition of formic acid, methanol, and formaldehyde on cerium oxide. J Catal 125(2):445–455
Binet C, Daturi M, Lavalley J-C (1999) IR study of polycrystalline ceria properties in oxidised and reduced states. Catal Today 50(2):207–225
Ferrizz RM et al (2001) Structure sensitivity of the reaction of methanol on ceria. Langmuir 17(8):2464–2470
Mullins DR, Robbins MD, Zhou J (2006) Adsorption and reaction of methanol on thin-film cerium oxide. Surf Sci 600(7):1547–1558
Löffler D et al (2010) Growth and structure of crystalline silica sheet on Ru(0001). Phys Rev Lett 105(14):146104
Yang B et al (2012) Thin silica films on Ru(0001): monolayer, bilayer and three-dimensional networks of [SiO4] tetrahedra. Phys Chem Chem Phys 14(32):11344–11351
Yang B et al (2013) Hydroxylation of metal-supported sheet-like silica films. J Phys Chem C 117(16):8336–8344
Wlodarczyk R et al (2013) The atomic structure of an ultrathin Fe-silicate film grown on a metal: a monolayer of clay? J Am Chem Soc 135(51):19222–19228
Abbott HL et al (2010) Relating methanol oxidation to the structure of ceria-supported vanadia monolayer catalysts. J Catal 272(1):82–91
Fronzi M et al (2009) Stability and morphology of cerium oxide surfaces in an oxidizing environment: a first-principles investigation. J Chem Phys 131(10):104701–104716
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We acknowledge the support from the COST Action CM1104 “Reducible oxide chemistry, structure and functions”.
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Uhlrich, J.J., Yang, B. & Shaikhutdinov, S. Methanol Reactivity on Silica-Supported Ceria Nanoparticles. Top Catal 57, 1229–1235 (2014). https://doi.org/10.1007/s11244-014-0296-2
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DOI: https://doi.org/10.1007/s11244-014-0296-2