Silylation of layered zirconium hydroxy phosphate and its porous properties
Silylation of layered zirconium hydroxy phosphate and its porous properties
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DOI：
10.1007/s10853-006-1418-4
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发表时间：
2007-01
影响因子：
4.5
通讯作者：
T. Takei;Y. Yonesaki;N. Kumada;N. Kinomura
中科院分区：
文献类型：
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作者：
T. Takei;Y. Yonesaki;N. Kumada;N. Kinomura
对层状羟基磷酸锆进行了硅烷化改性，并对其多孔性进行了研究。采用正辛胺对新型层状羟基磷酸酯进行质子化插层，以扩大其层间距。然后，使用二甲基二氯硅烷、二氯甲基乙烯基硅烷或1，2-双二甲基氯甲硅烷基乙烷使层间空间甲硅烷基化。为了在层之间形成微孔，将甲硅烷基化的化合物在100 °C至1，000 °C的范围内加热以测量高温XRD图案。在加热过程中，层间距在300和600-700 °C左右减小。比表面积在300 °C达到约180 m2/g作为最大面积，而层状结构在400 °C以上逐渐塌陷。微孔体积在300 °C时也达到最大值。
Silylation of layered zirconium hydroxy phosphate was carried out and its porous properties were examined. The novel layered hydroxy phosphate was protonated and intercalated by using octylamine to expand the interlayer space. Then, dimethyldichlorosilane, dichloromethylvinylsilane or 1,2-bisdimethylchlorosilylethane were used to silylate the interlayer space. In order to form micropores between layers, the silylated compounds were heated at the range from 100 °C to 1,000 °C to measure high-temperature XRD patterns. During heating, the interlayer spacing decreased at around 300 and 600–700 °C. The specific surface area reached around 180 m2/g as maximum area at 300 °C, while layered structure collapsed gradually above 400 °C. Micropore volume also became maximum at 300 °C.