以硅溶胶和三氯化钛为原料合成Ti-MCM-41分子筛Ⅱ. Ti-MCM-41分子筛的表征

催化学报 , 2001, 22(4): 331-334.

以硅溶胶和三氯化钛为原料合成Ti-MCM-41分子筛Ⅱ. Ti-MCM-41分子筛的表征

于健强 ^1, , 李灿 ^2, , 许磊 ^3, , 李美俊 ^4, , 辛勤 ^5, , 刘中民 ^6,

1.中国科学院山西煤炭化学研究所

2.中国科学院大连化学物理研究所

3.中国科学院大连化学物理研究所,

4.中国科学院大连化学物理研究所

5.中国科学院大连化学物理研究所

6.中国科学院大连化学物理研究所,

关键词：中孔分子筛 , Ti-MCM-41 , 孔结构 , 骨架结构

Synthesis of Ti-MCM-41 Using Colloidal Silica and Titanium Trichloride II. Characterization of Ti-MCM-41 Molecular Sieve

利用N2吸附,TG-DTA,FT-IR,UV-Vis和UV-Raman光谱等技术对以硅溶胶和TiCl3水溶液为原料合成的中孔Ti-MCM-41分子筛的孔结构和钛的配位状态进行了详细的表征. N2 吸附等温线表明, Ti-MCM-41分子筛的孔径比纯硅MCM-41分子筛小,钛的加入使分子筛的单胞体积大大增加,比表面积和孔壁厚度也显著增大. TG-DTA结果表明, Ti-MCM-41分子筛中存在着两种不同的模板剂键合位. FT-IR, UV-Vis及UV-Raman光谱表明, Ti原子存在于分子筛骨架中且以四面体方式配位,没有结晶状态的TiO2形成.

参考文献

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以硅溶胶和三氯化钛为原料合成Ti-MCM-41分子筛Ⅱ. Ti-MCM-41分子筛的表征

Synthesis of Ti-MCM-41 Using Colloidal Silica and Titanium Trichloride II. Characterization of Ti-MCM-41 Molecular Sieve

参考文献