Preparation of the 12-Molybdophosphoric Acid-Layered Double Hydroxides Nanocomposite Hybrid and its Electrocatalytic Reduction of Halate Ions

文献类型： 外文期刊

第一作者： Li, Yali

作者： Li, Yali;Yang, Xiurong;Li, Yali;Wang, Yingping;Wang, Yingping

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关键词： Electrocatalysis;Electrochemical sensors;Layered double hydroxides;Polyoxometalates

期刊名称：ANALYTICAL LETTERS （ 影响因子：2.329； 五年影响因子：1.738 ）

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收录情况： SCI

摘要： Polyoxometalates (POMs) possess an excellent property for electrochemical catalysis. A new hybrid complex containing polyoxometalate anions and layered double hydroxide (LDH) was prepared by assembly of Mg-Al LDH precursors in nitrate form with the 12-molybdophosphoric acid anions [PMo _(12)O _(40)] ~(3-)(PMo _(12)). The properties of the product complexes were characterized by the methods of field-emission scanning electron microscopy (FE-SEM), spectroscopic techniques (UV-vis, FT-IR), elemental analysis (EDS), and electrochemistry. The electrochemical behaviors of the LDH/PMo _(12) film were investigated by cyclic voltammetry. The result indicated that the LDH/PMo _(12) nanocomposite films modified electrode exhibited a diffusion-controlled voltammetric feature. The films were able to catalyze the reduction of halate ions (ClO _3 ~-,BrO _3 ~- and IO _3 ~-). Therefore, the prepared nanocomposite films modified electrode had potential application in the electroanalytical field.

分类号： O65

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