摘要
在相转移条件下研究了由Na_2HPW_(12)O_(40)(简写为PW_(12))催化的H_2O_2分解反应动力学。相转移催化剂氯代十六烷基吡啶与H_2O_2作用生成的含活性氧的中间化合物,在CHCl_3中溶解度很大但不稳定,可分解放出氧气。在此基础上,深入分析了两相反应的特点,提出了反应机理,首次推导出其反应动力学方程,并验证了与实验结果的一致性。
The hcteropoly tungstophosphoric compounds, K7PW11O39.xH2O (PW11), K5PW11ZO 39.xH2O(PW11 Z, Z = Mn II . Co II) ,which have Keggin structure and H6P2W18O62.xH2O, K6P2W18O62.xH2O (P2W18), K16P2-Wl7O01.xH2O (P2W17), K8P2W17ZO61.xH2O (P2W17Z, Z = MnII,CoII), which have Dawson structure have been synthesized. Their physico-chemical properties were studied systematically by means of DTA,TG, IR, X-ray diffraction and cyclic voltammograms. In addition, the relationship between the structure and the catalytic activity of the hetero-poly compounds in the reaction of H2O2 decomposition was discussed.
基金
国家自然科学基金
