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Citation: MA Rong-Hua, LUI Chun-Tao, WANG Shou-Guo, QU Lun-Yu. Electrochemical Properties and Catalytic Activity of Undecatungstomaganosilicate Isomers[J]. Chinese Journal of Applied Chemistry, ;2001, 18(1): 21-24. shu

Electrochemical Properties and Catalytic Activity of Undecatungstomaganosilicate Isomers

1.
a College of Chemistry, Qiqihaer University, Qiqihaer;
2.
b Qiqihaer Environmental Inspection Center, Qiqihaer;
3.
c College of Chemistry, Northeast Normal University, Changchun 130024

Received Date: 23 February 2000
Available Online: 12 June 2000
Fund Project: 国家自然科学基金资助项目(29471009) (29471009)

Synthetic method and electrochemical properties of undecatungstomanganosilicate isomers T-and,U_i-K_n H_6-n[SiW₁₁Mn(H₂O)O₃₉]·xH₂O (U_i=U₁,U₂,U₃) are reported. The effect of structure on the redox has been investigated. The order of polarographic half-wave potential E_1/2 of heteropoly anions as follows: U₂ >U₁ >U₃ >T_o in epoxidation of maleic acid with H₂O₂ is U₃(87.86%) >U₁(82.50%) >T(64.20%) >U₂(56.10%).
- undecatungstomaganosilicate,
- isomer,
- electrochemical property,
- epoxidation catalytic activity
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