Synthesis and Conductivity of Undecatungstocobaltoruthenic Polyoxometallic Acid

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (1): 1-3.

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Synthesis and Conductivity of Undecatungstocobaltoruthenic Polyoxometallic Acid

XU Sheng-xian^1,2, WU Qing-yin^2*, YAN Wen-fu³

1. School of Chemistry and Chemical Engineering, Jiangxi Science & Technology Normal University, Nanchang 330013, P. R. China;
2. Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China;
3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P. R. China

Received:2011-02-07 Revised:2011-03-17 Online:2012-01-25 Published:2011-12-27
Contact: Qingyin Wu E-mail:qywu@zju.edu.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.21071124), the Foundation of Jiangxi Education Deparment, China(No.GJJ09310) and the Foundation of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, China(No.2010-16).

Abstract

Abstract: Undecatungstocobaltoruthenic polyoxometallic acid H₇[Ru(H₂O)CoW₁₁O₃₉]·22H₂O was synthesized by the stepwise acidification and the stepwise addition of solutions of the component elements as well as the ion exchanging- cooling method. The optimal proportion of the component compound and the pH of the synthesis reaction were given. The product was characterized by means of inductively coupled plasma(ICP), IR, UV and thermal analysis. The IR and UV results indicate that H₇[Ru(H₂O)CoW₁₁O₃₉]·22H₂O possesses the Keggin structure. The results of AC impedance measurement show that its proton conductivity is 2.30×10^-3 S/cm at room temperature(295 K) and a relative humidity of 75%.

Key words: Polyoxometallic acid, Keggin structure, Conductivity, Ruthenium

XU Sheng-xian, WU Qing-yin, YAN Wen-fu. Synthesis and Conductivity of Undecatungstocobaltoruthenic Polyoxometallic Acid[J]. Chemical Research in Chinese Universities, 2012, 28(1): 1-3.

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Synthesis and Conductivity of Undecatungstocobaltoruthenic Polyoxometallic Acid

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