DNA-Mediated Synthesis of Microporous Single-Crystal-Like NaTi2(PO4)3 Nanospheres

被引：28

作者：

Liu, Jiehua ^{[1
,2
]}

Zhang, Jianling ^{[1
]}

Cheng, Siqing ^{[2
]}

Liu, Zhimin ^{[1
]}

Han, Buxing ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China

[2] Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China

来源：

SMALL | 2008年 / 4卷 / 11期

基金：

中国国家自然科学基金;

关键词：

DNA; metal phosphates; nanoparticles; solid acid; templated synthesis;

D O I：

10.1002/smll.200800284

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel method to synthesize sodium titanium phosphate (NaTi 2(PO4)3 microporous nanospheres with single-crystal-like features by using calf thymus DNA was described. The results show that before and after calcination, the size and shape of the particles prepared in the presence of DNA are nearly the same, indicating that the special morphology of the particles is not induced by the calcination. It is also seen that after addition of ethanol to the DNA-phosphoric acid solution, the single-stranded DNA change from a coil to a globular conformation. The microporous nanospheres are also used to catalyze the ketalization of cyclohexanone and 1,2-ethanediol to cyclohexanone ethylene ketal. The extremely high activity of the microporous nanospheres results from the special morphology and strong acidic surface.

引用

页码：1976 / 1979

页数：4

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