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Citation: Ma Huimin, Han Furong, Xu Bo, Wu Yue. ON THE CATALYTIC BEHAVIOUR OF 12-MOLYBDOPHOSPHORIC ACID IN THE DECOMPOSITION REACTION OF H₂O₂[J]. Chinese Journal of Applied Chemistry, ;1986, 3(1): 36-40. shu

ON THE CATALYTIC BEHAVIOUR OF 12-MOLYBDOPHOSPHORIC ACID IN THE DECOMPOSITION REACTION OF H₂O₂

1.
Changchun Institute of Applied Chemistry, Academia Sinica

Received Date: 21 January 1985
Available Online: 8 May 1985

The catalytic behaviour of 12-molybdophospboric acid and its salts in the decomposition reaction of H₂O₂ has been studied by comparing them with the conventional Fenton reagent.The results showed that 12-molybdophosphoric acid gives only negligible catalytica ctivity, while its salts have the activity comparable to that of the Fenton reagent. It is suggested that the active species were metallic counterions from heteropolyacid salt. The activity of 12-molybdophosphoric acid was markedly affected by substitution of Mo⁺⁶ in the polyanion by V⁺⁵ and increased regularly with the number of V⁺⁵ substituted. For the decomposition reaction of H₂O₂ by 12-molybdophosphoric acid a S-shaped kinetic curvewas given rather than a parabolic one as in the case of Fenton reagent. The S-shaped curve is characteristic of branch chain reaction and indicates the formation of more active intermediate as a result of the reaction betwcen V⁺⁵ in the active center of polyanion and the substracte.
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沈阳化工大学材料科学与工程学院沈阳 110142

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ON THE CATALYTIC BEHAVIOUR OF 12-MOLYBDOPHOSPHORIC ACID IN THE DECOMPOSITION REACTION OF H2O2

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通讯作者: 陈斌, bchen63@163.com

ON THE CATALYTIC BEHAVIOUR OF 12-MOLYBDOPHOSPHORIC ACID IN THE DECOMPOSITION REACTION OF H₂O₂