Some aldehydes and ketones belong to the most important chemicals produced and used in chemical industry as well as in organic and pharmaceutical chemistry with formaldehyde, acetone and butanone being the most prominent examples. Industrially, different synthesis routes are applied. In the direct oxidation of alkenes, which is namely the Höchst-Wacker process, palladium(II) chloride and copper(II) chloride are used as catalysts . The oxidative dehydrogenation of alcohols as used in the Formox process for the production of formaldehyde patented by Johnson-Matthey relies on either iron molybdate or silver metal . The route predominantly used for the production of acetone today is the cumene process, where benzene and propene form cumene, which is treated with oxygen to yield phenol and acetone . Lastly, butanone, which is of similar use as acetone, is produced through non-oxidative dehydrogenation of 2-butanol using zinc oxide or copper(II) oxide as catalysts . In the research of selective oxidation of primary and secondary alcohols, the catalyst materials studied most in the past cover primarily typical support materials such as TiO2, CeO2, Al2O3 and Fe2O3 carrying gold, palladium or platinum nanoparticles . More recently, oxide catalysts have been increasingly focused on, because of lower financial cost and their superiority to noble metal based materials in terms of sintering rates, thermal stability and potential poisoning , with spinel compounds being of particular interest. While Co3O4 and doped Co3O4 still seem to be the major players among spinels , the focus is expanded to ferrite materials, especially cobalt ferrites of the composition CoxFe3-xO4 , as well. While the catalytic activity of nickel ferrite (NiFe2O4) has been investigated in reactions such as carbon monoxide oxidation , high temperature water-gas shift reaction , carbon dioxide hydrogenation , dry reforming of methane , water splitting , the selective oxidation of benzyl alcohol to benzaldehyde or the total oxidation of ethanol , its activity in the oxidative dehydrogenation of 2-propanol has been investigate in few studies yet , although this reaction has reached the status of a relatively well understood model reaction. Depending on the availability of acidic and basic sites on a catalysts' surface, a variety of reaction pathways can potentially reduce the selectivity of catalysts in oxidative dehydrogenation as described by Anke et al. and lead to a wide distribution of products. Non-oxidative dehydrogenation leading to the formation of acetone and hydrogen, dehydration yielding propene and water and total combustion yielding carbon dioxide and water are the simplest parallel reactions. It is known, that mechanistically, acetone evolution takes place over fairly acidic and strongly basic sites, so that 2-propanol can dissociatively adsorb to form 2propoxide and an OH group and a further hydrogen be abstracted to enable the desorption of acetone and water , while propene is known to evolve from materials with strongly acidic and slightly basic sites . Ultimately, it is the acidity or basicity of available sites, respectively, which determines the strength of the bond between metal ions of an oxide and the oxygen atom of an adsorbed alcoholate and thereby influences the cleavability of the C-O bond and the selectivity of a catalyst . In the oxidative dehydrogenation of primary and secondary alcohols, oxidation steps beyond the aldehyde or ketone, respectively, such as partial oxidation and steam reforming of both the alcohols and the products of previous selective oxidation are known to occur , additionally yielding a gas containing carbon monoxide, carbon dioxide, hydrogen and water, which might be subject to a consecutive water-gas shift reaction or hydrogenation reactions, when cross-activity of the catalyst for those reactions is given . This leads to a complex network of numerous reactions called autothermal reforming, in which steam reforming, partial oxidation and water-gas shift reaction take place , although steam reforming, due to its endothermicity, requires temperatures much higher than necessary in oxidative dehydrogenation of 2-propanol. Equations ( ) - represent the oxidative dehydrogenation, non-oxidative dehydrogenation, dehydration, total combustion, partial oxidation and steam reforming of 2-propanol and acetone, respectively, as well as the water-gas shift reaction and autothermal reforming of 2-propanol. A study concerning the influence of the particle size on the catalytic performance in the selective oxidation of 2-propanol in the gas phase already exists for Co3O4 and describes the preferential exposure of certain facets being differently catalytically active in different particle sizes due to different abundance of octahedrally coordinated Co 3+ at the surface, which has been found to be the active centre in oxidative dehydrogenation of 2-propanol. Namely, the (110) facet, known to be especially rich in Co 3+ species, was found to be more abundant in a larger particle sample of Co3O4 by TEM studies and density functional theory calculations. Further properties differing in different facets are the abundance and type of surface oxygen species and vacancies, the oxygen mobility in the bulk underneath and surface reoxidation . In other works, some of these properties were linked to a materials reducibility as well .