摘要
在氟离子体系中，以吡咯烷为模板剂（HF-ZrO2—P2O5-吡咯烷-H2O），采用水热合成方法制备了一种具有开放骨架结构的磷酸锆微孔化合物，命名为ZrPOF—BL。其骨架结构与以前报道过的{（C5H6N）4（H2O）2｜[zR12P16O60（OH）4F6]微孔化合物相同，含有10元环和8元环两种孔道结构。对ZrPOF-BL合成规律进行系统考察，优化了合成条件，采用XRD、SEM和TG-DTA等测试手段对得到的样品进行了表征。结果表明，ZrPOF-BL具有较高的热稳定性，在450℃下焙烧其结构保持不变。对活化后的样品进行储氢性能测试表明，该材料具有一定的储氢性能，在1．7MPa和77K下，储氢量为0．8％，且随着压力的增加，其储氢量呈线性增加。
By using the pyrrolidine as template in the fluoride system （HF-ZrO2-P2O5- pyrrolidine -H2O）, an open framework zirconium phosphate compound was synthesized by hydrothermal approach, designated ZrPOF-BL, which is proved to be identical to that of reported previously compound [（C5H6N）4（H2O）2｜[zR12P16O60（OH）4F6], consisting of two different channels of 10-ring and 8-ring. To obtain the pure high-quality sample, the synthesis conditions were investigated in detail, and the samples were characterized by XRD, SEM and TG-DTA methods. The data showed that ZrPOF-BL possessed a relatively high thermal stability, its phase was thermally stable to 450℃. Furthermore, the hydrogen storage test for calcined sample showed that the hydrogen storage capacity of ZrPOF-BL could reach to 0.8% at 1.7 MPa and 77 K, which increased with the pressure increasing.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2008年第B10期197-200,共4页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
山西省青年科技研究基金（2008021014）、太原市大学生创新创业专项（07010755）和校科技发展基金项目资助
关键词
磷酸锆
微孔
水热合成
氟体系
zirconium phosphate
microporous
hydrothermal synthesis
fluorine system
