Anatase specimens

In the following, the evaluation of the adsorption entropy change for the slightly more complex case of CO a-coordinated (at T = 303 K) on a variety of 1102 — anatase specimens (pre-outgassed at T = 673 K) will be illustrated. At the 1102 dehydrated surface, CO was adsorbed giving rise to two adspecies, as witnessed by two distinct IR bands located at uco = 2188 and 2206 cm , as reported in Ref. [18] As illustrated schematically in Fig. 1.19 the two adspecies were formed on two different Lewis acidic sites made up of stmcturally different cus Ti" " " cations. They were named species A and B, and their spectroscopic and energetic features are summarized in the figure. 

The diffraction patterns of the decomposed aerosol products of TiO and Fe-TiOj obtained by spray pyrolysis showed poor crystallinity. Specimens were therefore further calcined at temperatures of 823K, 873IG 973K and 1073K in air for a period of 2 hours in order to improve their crystalline structure. Fig.1. shows the x-ray diffraction patterns of titanium dioxide (anatase), and a series of iron-titanium oxide specimens of nominal Fe(IlI) concentration equivalent to 0.1, 1, 2, 5 and 10 atom%, prepared by the spray pyrolysis method and subsequently calcined at 823K in air for 2 hours. 

The galvanostatic charge-discharge performance as a function of current density for both the rutile and anatase mesocrystals was compared to nanoparticles of their corresponding material and size both mesocrystal specimens demonstrated their... 

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