Inhibition and self-inhibition phenomena in mixed solutions of Anderson type polyoxometalatesстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 4 марта 2022 г.
Аннотация:Adsorption of Anderson-type polyoxometalates on mercury is addressed by classical polarography. The outer-sphere perbromate reduction is considered to probe the barrier properties of polyoxometalate adlayers. A mutual effect of polyanions with Co(II), Co(III), and Ni(II) as central atoms is shown to affect both their adsorption and the inhibition of perbromate reduction, as well as the self-inhibition of Co(III) reduction. The difference in adlayer-induced inhibition effects for individual polyanions and their mixtures is interpreted on the basis of molecular modeling with account for co-adsorption with cations. Our observations demonstrate that a wide variety of barrier properties can be implemented due to orientation effects and adsorption behavior controlled by the electrode charge.