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磷酸锰铝分子筛MnAPO-5的合成、结构与性能研究
Studies on the Synthesis, Structure and Properties of Manganese Aluminophosphate Molecular Sieve
【摘要】 在磷酸锰铝分子筛MnAPO-5纯相合成的基础上,研究了它的结构和物化性能。晶胞参数和红外光谱的测定结果表明它具有AlPO4-5型分子筛的结构;顺磁共振和电子探针能谱分析及组成分析表明Mn(Ⅱ)结合到分子筛的骨架上。同时对其吸附性能,热稳定性表面酸性进行了研究。
【Abstract】 The pure Manganese Aluminophosphate molecular sieve was synthesized. The structure of Manganese Aluminophosphate molecular sieve MnAPO-5 wasinvestigated by means of X-ray diffraction, electron paramagnetic resonance Spectrum, infrared spectra and electron probe energy dispersion analysis. The results of infrared spectra and parameters of the unite cell show that the struct-ureof MnAPO-5 is of the AlPO4-5 type. The study of EPR, electron probe energy dispersion analysis and chemical composition of MnAPO-5 indicate that manganese enter into the framework of MnAPO-5 molecular sieve. The adsorption properties, thermal stability and surface acidity were investigated.The results show that MnAPO-5 has excellent physical and chemical properties.
【Key words】 Manganese aluminophosphate; Molecular sieve; Synthesis; Structure; Property;
- 【文献出处】 高等学校化学学报 ,Chemical Research In Chinese Universities , 编辑部邮箱 ,1988年09期
- 【被引频次】5
- 【下载频次】79