A twofold interpenetrating framework based on the α-metatungstates

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• 作者：Pengpeng Zhang ; Jun Peng ; Xiaoqing Shen ; Zhangang Han ; Aixiang Tian ; Haijun Pang ; Jingquan Sha ; Yuan Chen ; Min Zhu
• 关键词：α ; -metatungstate ; Electrocatalytic activity ; Interpenetrating framework ; Thermal decomposition
• 刊名：Journal of Solid State Chemistry
• 出版年：2009
• 出版时间：December 2009
• 年：2009
• 卷：182
• 期：12
• 页码：3399-3405
• 全文大小：644 K

文摘

A new compound based on polyoxometalates, [Cu(bbi)]₅H[H₂W₁₂O₄₀] (1) (bbi=1,1′-(1,4-butanediyl)bis(imidazole)), has been hydrothermally synthesized and characterized by elemental analyses, IR spectroscopy, thermogravimetric analyses, and single X-ray diffraction. Compound 1 shows a twofold 3D+3D topology, and it represents the first interpenetrating network based on the isopolytungstate. The electrochemical property of compound 1 modified carbon paste electrode (1−CPE) was investigated in 1 M H₂SO₄ solution, and the results indicate that 1−CPE exhibits the electrocatalytic activity toward the reduction of bromate and nitrite. Further, the non-isothermal kinetics of the thermal decomposition of compound 1 provides the dynamic parameters E (activation energy) and A (pre-exponential factor) for the pyrolytic reaction of the organic ligands.