One-electron redox potentials of phenols in aqueous solution

Article Abstract:

A cyclic voltammetry study was conducted to determine the oxidation peak potentials (Ep) of 31 phenolate, chlorophenolate and other para-substituted phenolate ions in aqueous solution at pH 12 as a function of scan rate. The dependence of one-electron reduction potentials of the phenoxyl radical/phenolate ion couples on pH was established after such potentials were evaluated from Ep and the rate constants for dimerization of the phenoxyl radicals. The pKa values of the phenols and the protonated phenoxyl radical cations were also investigated.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

Role of the crystallite of TiO2 in heterogeneous photocatalysis for phenol oxidation in water

Article Abstract:

Research into the role of crystal phase in photocatalytic oxidation of phenol in water is presented. The Degussa P25 and silica-titania TiO2-based photocatalysts were investigated in detail.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code:

FTIR study of CO oxidation on Au/TiO2 at 90 K and room temperature. An insight into the nature of the reaction centers

Article Abstract:

It has been possible to make an FTIR investigation of CO adsorption and oxidation on Au/TiO2. It is suggested that dissociation of oxygen is required in order to see the oxidation reaction.

User Contributions:

Comment about this article or add new information about this topic:

Comment:  (50-4000 characters)

Name:

E-mail:

Security Code: