化学学报 ›› 2012, Vol. 0 ›› Issue (04): 436-440.DOI: 10.6023/A1012212 上一篇    下一篇

研究论文

六方硼碳氮化合物的溶剂热合成与表征

周友, 高发明, 郭文锋, 侯莉   

  1. 燕山大学环境与化学工程学院 秦皇岛 066004
  • 投稿日期:2010-12-21 修回日期:2011-09-26 发布日期:2011-11-01
  • 通讯作者: 高发明
  • 基金资助:

    国家自然科学基金(No. 21071122)和教育部博士学科点专项基金(No. 20091333110009)和河北省杰出青年基金(No. E2010001169)资助项目.

Synthesis and Characterization of Hexagonal Boron Carbonitride Compounds Prepared by Solvothermal Method

Zhou You, Gao Faming, Guo Wenfeng, Hou Li   

  1. College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004
  • Received:2010-12-21 Revised:2011-09-26 Published:2011-11-01
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No. 21071122) and Research Fund for the Doctoral Program of Higher Education of China ( No. 20091333110009) and the Outstanding Youth Fund of Hebei Province (No. E2010001169).

采用溶剂热合成方法, 以无水乙腈、叠氮化钠和四氟硼酸钠为原料, 以苯为溶剂, 在温度为400 ℃条件下, 成功合成出了硼碳氮(BCN)三元化合物. 利用X 射线粉末衍射(XRD)、Fourier 变换红外光谱(FTIR)、透射电子显微镜(TEM)、 选区电子衍射(SAED)、X 射线能谱(EDS)和电子能量损失谱(EELS)对合成产物进行了表征. XRD 和SAED 分析表明, 合成产物为六方相, 晶格常数为a=0.2678 nm, c=0.6639 nm; TEM 结果表明, 合成产物中存在纳米棒和四方柱状块体 BCN; EELS 和EDS 分析表明, 产物由B, C, N 三种元素组成, 化学式为B0.23C0.60N0.17; FTIR 分析表明样品中存在C— N, B—C 和B—N 键, 表明B, C, N 三元素之间达到了原子级化合.

关键词: 硼碳氮, 溶剂热合成, 透射电子显微镜

A solvothermal method has successfully applied to prepare hexagonal boron carbonitride from CH3CN, NaN3 and NaBF4 in benzene at 400 ℃. The synthesized product was characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), select area electron diffraction (SAED), X-ray energy-dispersive spectroscopy (EDS), and electron energy loss spectroscopy (EELS). XRD and SAED indicated that the synthesized product are h-BCN with the lattice constants of a=0.2678 nm and c=0.6639 nm. TEM images reveal that the products mainly consist of nanorods and quartet prism-like nanostructure. The results of EELS and EDS suggested that the product was composed of elements of B, C and N, and the chemical formula was B0.23C0.60N0.17. FTIR exhibited that the product had C—N, B—C and B—N bonds, indicating that an atomic-level hybrid of the three elements was synthesized.

Key words: boron carbonitride, solvothermal synthesis, transmission electron microscopy