Reply to comment on "Quantitative analysis of Ti-O-Si and Ti-O-Ti bonds in Ti-Si binary oxides by the linear combination of XANES"

Article Abstract:

The comment on "Quantitative analysis of Ti-O-Si and Ti-O-Ti bonds in Ti-Si binary oxides by the linear combination of XANES" is a response that proposed a technique of linear combination of Xanes to obtain quantitative information about Ti environment in Ti-Si binary oxides. The purpose is to provide a handy technique to obtain quantitative information on Ti coordination environment in Ti-Si binary oxides in general with the assumption that Ti is either in 4-fold or 6-fold coordination in anhydrous conditions.

Silicon, Oxides, Quantitative chemical analysis, Titanium

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Quantitative analysis of Ti-O-Si and Ti-O-Ti bonds in Ti-Si binary oxides by the linear combination of XANES

Article Abstract:

A study is conducted on X-ray absorption near edge structure (XANES) of Ti K-edge of Ti-Si mixed oxides and titania supported on silica with various Ti contents to analyze the fraction of Ti-O-Si and Ti-O-Ti bonds quantitatively by fitting the preedge of Ti K-edge with the linear combination of two reference XANES spectra. The results showed the possibility of the quantification of Ti-O-Si and Ti-O-Ti bonds in Ti-Si binary oxides by using the linear combination of reference XANES spectra.

Silicon Dioxide, Analysis, Spectra, Titanium dioxide, Chemical bonds

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Quantitative XANES analysis of cuprous dibromide complex formed in the oxidative carbonylation of phenols

Article Abstract:

Quantitative analysis of Cu K-edge XANES spectra representing mixed states of two cuprous compounds is studied to determine the composition of copper species formed in the oxidative carbonylation of phenols. The amount of cuprous dibromide complex obtained by this method showed an excellent correlation with the rate of formation of the desired para-position carbonylation products, indicating that the phase was the active and selective catalytic phase of copper.

Methods, Phenols, Phenols (Class of compounds), Copper, Bromides, Properties, Bromides (Chemistry), Carbonization

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