Kinetics of oxide dissolution

Oxide dissolution in aqueous electrolytes involves transfer of metal and oxygen ions to the solution. Since O2- ions cannot be transferred into the solution, protonation must precede the ion transfer reaction, which leads to strongly pH-dependent dissolution rates [37], The cation and oxygen transfer reactions may be regarded as statistically independent with 

Oxide dissolution has been reviewed by Diggle [49]. According to the type of ion transfer rate-determining step, the different mechanisms can be classified into a chemical 

The rate of metal ion transfer from the oxide electrode to the electrolyte can be enhanced by complexing substances in the solution which can adsorb at active sites and weaken the M-0 bonds. However, it is known that certain organic complexing ions can slow down the rate of dissolution by adsorbing and blocking active sites at the surface [37], 

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Grandstaff (1976), in examining the kinetics of oxidative dissolution of uraninite concluded that the factors influencing the rate of dissolution are ... 

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