引用本文:
马荣华, 李英杰, 刘春涛, 瞿伦玉. 三铌和三过氧铌钨磷杂多配合物的合成、表征及催化性能[J]. 应用化学,
2004, 21(6): 551-555.
Citation: MA Rong-Hua, LI Ying-Jie, LIU Chun-Tao, QU Lun-Yu. Synthesis and Catalytic Activity of Triniobium and Triperoxyniobium Heteropolytungstophophates[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 551-555.
Citation: MA Rong-Hua, LI Ying-Jie, LIU Chun-Tao, QU Lun-Yu. Synthesis and Catalytic Activity of Triniobium and Triperoxyniobium Heteropolytungstophophates[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 551-555.
三铌和三过氧铌钨磷杂多配合物的合成、表征及催化性能
English
Synthesis and Catalytic Activity of Triniobium and Triperoxyniobium Heteropolytungstophophates
Abstract:
Six heteropoly complexes M3H2[PW9(NbO2)3O37]·xH2O and M4-mHm[PW9Nb3O40]·xH2O(M=(CH3)4N+, (C4H9)4N+,(C2H5)4N+,(C7H15)4N+) were synthesized and characterized. IR, UV spectrometry, polarography and chemical titration confirmed the existence of NbO2 groups in the complexes. All their 183W NMR spectra have six peaks, showing the Keggin structure of anions in the compounds. Oxidation of maleic acid into tartaric acid showed that the complexes containing peroxy ions exhibited higher catalytic activity than those without peroxy ions.
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Key words:
- peroxyniobiun heteropoly tungstate
- / catalytic activity
- / synthesis
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