Superlong high-quality tellurium nanotubes: Synthesis, characterization, and optical property
Superlong high-quality tellurium nanotubes: Synthesis, characterization, and optical property
复制标题
超长高质量碲纳米管：合成、表征和光学性能
DOI：
10.1021/cg701125k
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发表时间：
2008-06-01
影响因子：
3.8
通讯作者：
Yu, Shu-Hong
中科院分区：
文献类型：
--
作者：
Song, Ji-Ming;Lin, Yun-Zhi;Yu, Shu-Hong
在十六烷基三甲基溴化铵（CTAB）和醋酸纤维素（CA）的存在下，以二氧化碲（TeO2）为碲源，乙二醇（EG）为还原剂和溶剂，采用简单的溶剂热还原方法，可以选择性地大规模合成斜截面和六方截面的单晶三角碲（t-Te）纳米管。单个Te纳米管呈圆柱形，端部开放，外径100-500 nm，壁厚50-100 nm，长度150-200 μ m，两种Te纳米管均沿[001]方向生长，结晶度优异。研究了斜截面t-Te纳米管的光学性质和在乙醇中的稳定性。
Single-crystalline trigonal tellurium (t-Te) nanotubes with sloping cross-section and hexagonal cross-section can be selectively synthesized on a large scale by a simple solvothermal reduction route, using tellurium dioxide (TeO2) as tellurium source and ethylene glycol (EG) as both a reducing agent and a solvent in the presence of cetyltrimethyl ammonium bromide (CTAB) and cellulose acetate (CA), respectively. The individual Te nanotubes with cylindrical morphology and open ends have outer diameters of 100-500 nm, wall thicknesses of 50-100 nm, and lengths of 150-200 mu m. Both kinds of Te nanotubes grow along the [001] direction and have excellent crystallinity. The optical properties and the stability in ethanol of the t-Te nanotubes with sloping cross section have been investigated.