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Web Supplement 7.2
Web Supplement 7.2

Synthesis and Characterization of Dendrimer Templated Supported
Synthesis and Characterization of Dendrimer Templated Supported

... have chosen a nomenclature system that indicates the stoichiometric metal:metal and metal:dendrimer ratios used in catalyst preparation. The primary material of interest is termed the bimetallic catalyst defined as Pt16Au16. The monometallic Pt and Au materials (Pt32 and Au32, respectively) were pre ...
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... at 2164 cm 1.27 On the other hand, CO is suggested to be adsorbed on the Co(II) and Co(III) sites by Pollard et al., employing the same method.37 A band centered at 2006 cm 1 is assigned to CO linearly adsorption on a Co(II) site; the adsorbed CO reacts with an oxygen atom bonded to a neighboring C ...
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Surface properties of transition metal oxides

Transition metal oxides are compounds composed of oxygen atoms bound to transition metals. They are commonly utilized for their catalytic activity and semiconductive properties. Transition metal oxides are also frequently used as pigments in paints and plastics, most notably titanium dioxide. Transition metal oxides have a wide variety of surface structures which affect the surface energy of these compounds and influence their chemical properties. The relative acidity and basicity of the atoms present on the surface of metal oxides are also affected by the coordination of the metal cation and oxygen anion, which alter the catalytic properties of these compounds. For this reason, structural defects in transition metal oxides greatly influence their catalytic properties. The acidic and basic sites on the surface of metal oxides are commonly characterized via infrared spectroscopy, calorimetry among other techniques. Transition metal oxides are also able to undergo photo-assisted adsorption and desorption to control their semiconductivity. One of the more researched properties of these compounds is their response to electromagnetic radiation, which makes them useful catalysts for redox reactions, isotope exchange, specialized surfaces, and a variety of other uses currently being studied.
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