高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (9): 1594.

• 研究论文 • 上一篇    下一篇

单晶CaSO4纳米管的制备——非片状结构化合物形成纳米管的新途径

高远浩1, 刘锦2, 牛和林3   

  1. 1. 平顶山学院化学化工系,平顶山467002;
    2. 河南大学化学化工学院,开封475000;
    3. 中国科学技术大学结构分析重点实验室,合肥230022
  • 收稿日期:2004-12-06 出版日期:2005-09-10 发布日期:2005-09-10
  • 基金资助:

    国家自然科学基金(批准号:20125103)资助.

Preparation of Single Crystal CaSO4 Nanotubes: A Nanotube Growing Route for Compound with Non-layered Structure

GAO Yuan-Hao1, LIU Jin2, NIU He-Lin3   

  1. 1. Department of Chemistry and Chemical Engineering, Pingdingshan College, Pingdingshan 467002, China;
    2. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475000, China;
    3. Structure Research Laboratory, University of Science and Technology of China, Heifei 230022, China
  • Received:2004-12-06 Online:2005-09-10 Published:2005-09-10

摘要: 以Ti—O—Ti油酸偶合体作为结构引导生长剂,采用溶剂热技术成功地制备了单晶无水硫酸钙纳米管,并通过XRD、X射线能谱(EDX)、TEM、选区电子衍射(CBED)对CaSO4纳米管进行了表征.其晶格常数与JCPDS标准卡单斜相CaSO4晶体数值一致,属P3m1(164)空间群.纳米管呈均匀的直管形,直径约为30nm,内径约为10nm,长度达到3.0μm.并对硫酸钙纳米管的形成机理进行了浅析,提出了非片状结构的离子晶体,通过结构引导生长剂诱导生长成为片状结构,在溶剂热条件下弯曲、旋转、卷拢形成纳米管的新方法.

关键词: Ti&mdash, O&mdash, Ti油酸偶合体, 溶剂热法, CaSO4, 纳米管, 结构引导生长剂

Abstract: Single-crystal CaSO4 nanotubes were prepared via a solvothermal process by using lamellar {Ti-O-Ti} polymer coupling oleic acid as the frame developing agent .The nanotubes were characterized by X-ray diffraction(XRD), energy dispersive X-ray analysis(EDX), transmission electron microscopy(TEM) and convergent beam electron diffraction(CBED). Lattice parameters of CaSO4 single-crystal nanotubes are consistent with the standard values in JCPDS card of CaSO4, which belongs to a hexagonal system, space group P3m1(164). The morphology of CaSO4 nanotubes is mainly straight with inner hollow. The outer and inner diameters of the nanotubes are about 30 nm and 10 nm, respectively, and lengths reach up to 3.0 μm. The formation mechanism for CaSO4 nanotubes was also discussed .This paper presents a promising solvothermal method for the preparation of nanotubes of self-nonlayered ionic crystals in terms of rolling of layer-by-layer grown from frame developing agent of lamellar Ti-O-Ti polymer coupling oleic acid.

Key words: Ti-O-Ti polymer coupling oleic acid, Solvothermal method, Calcium sulphate, Nanotube, Frame developing agent

中图分类号: 

TrendMD: