Studies on the Redox Properties of Molybdovado Phosphoric Heteropolyacids Having Dawson Structure

Abstract

Abstract: The redox properties of molybdovanadophosphoric acid H⁶⁺ⁿ[P₂Mo_18-nV_nO₆₂]·H₂O(n=1~3) and H⁴⁺ⁿ[P₂Mo_13-nV_nO₆₂H₂]· H₂O(n= 4,5) in solution were studied with potentiotitrimetry and polarography and cyclic voltammetry. The three reduction steps for the five heteropolyacids involving n, 2, 2 electrons accompanied by the addition of n, 2,2 protons were ascertained. The correlograms of the cyclic voltammogrammetric peak potentials versus pHwere obtained and the reduction mechanism has been proposed.

Key words: Dowson, Molybdovanadophosphoric acid, Redox

TrendMD:

Wang Enbo, Gao Lihua, Liu Jingfu, Liu Zongxu . Studies on the Redox Properties of Molybdovado Phosphoric Heteropolyacids Having Dawson Structure[J]. Chem. J. Chinese Universities, 1988, 9(9): 876.

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Studies on the Redox Properties of Molybdovado Phosphoric Heteropolyacids Having Dawson Structure

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