Synthesis of long ZrTiO4 fibers by a sol–gel process free of organic components
Synthesis of long ZrTiO4 fibers by a sol–gel process free of organic components
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采用溶胶-凝胶法合成不含有机成分的 ZrTiO4 长纤维
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
X. Jiao
中科院分区：
文献类型：
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作者：
Qifang Lu;Dairong Chen;X. Jiao
以硫酸钛和八水氧氯化锆为原料，采用溶胶-凝胶法合成了不含任何有机组分的ZrTiO_4长纤维。在这个系统中，SO 42 −阴离子是一种螯合剂，可以与金属离子（Ti和Zr）及其氧原子配位，使无机聚合物容易形成，溶胶可纺。ZrTiO_4纤维的平均长度约为100 nm。40 cm由直径约为600 nm至5 µm的纳米颗粒（粒度<25 nm）组成。采用TGA、FTIR、XRD、SEM、TEM和UV等技术研究了绿色凝胶纤维向ZrTiO 4纤维的转变。对ZrTiO_4纤维的微观结构进行了表征，纤维密度达到理论值的98.2%。
Long ZrTiO4 fibers have been synthesized through a sol–gel process using titanium sulfate and zirconium oxychloride octahydrate as starting materials without any organic component. In this system, SO42− anions are a chelating reagent and can coordinate to metal ions (Ti and Zr) with its oxygen atoms which make the inorganic polymer easily form and the sols spinnable. The ZrTiO4 fibers with an average length of ca. 40 cm are composed of nanoparticles (particle size <25 nm) of the order of 600 nm to 5 µm in diameter. The transformation of the green gel fibers to ZrTiO4 fibers has been investigated by TGA, FTIR, XRD, SEM, TEM and UV techniques. Furthermore the microstructures of the ZrTiO4 fibers have also been characterized, and the fiber density is up to 98.2% of its theoretical value.