Template-mediated growth of Cu3SnS4 nanoshell tubes
Template-mediated growth of Cu3SnS4 nanoshell tubes
复制标题
Cu3SnS4 纳米壳管的模板介导生长
DOI：
10.1016/j.jcrysgro.2005.07.004
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发表时间：
2005-10-15
影响因子：
1.8
通讯作者：
Qian, YT
中科院分区：
文献类型：
--
作者：
Hu, HM;Liu, ZP;Qian, YT
在200℃的温和溶剂热条件下，以CuCl2 - 2H(2)O、SnCl2 - 2H(2)O（或SnCl4.5H(2)O）和硫脲为起始反应物，以乙醇为溶剂，成功地大规模制备了Cu3SnS4 （Kuramite、锡石基、四方体）纳米壳管。近距离观察表明，制备的Cu3SnS4纳米壳由球形或片状纳米颗粒组成。实验结果进一步表明，预制的一维结构Cu+-硫脲配合物前驱体可能为Cu3SnS4纳米管的后续生长提供了良好的模板，并提出了一种“模板介导生长”机制来形成纳米颗粒基纳米管。研究发现，硫源、溶剂和反应温度等反应参数对管状纳米壳的生长有重要影响。光致发光（PL）光谱表明，制备的Cu3SnS4纳米壳管在紫外区有发射带。(c) 2005 Elsevier B.V.版权所有
Cu3SnS4 (Kuramite, stannite group, tetragonal) nanoshell tubes have been successfully prepared on a large scale, using CuCl2 - 2H(2)O, SnCl2 - 2H(2)O (or SnCl4.5H(2)O) and thiourea as starting reactants and ethanol as solvent under mild solvothermal conditions at 200 degrees C. Close inspections reveal that the prepared tube-like Cu3SnS4 nanoshells are composed of spherical or flake-like nanoparticles. The experimental results further reveal that the preformed 1D-structured Cu+-thiourea complex precursor may provide an excellent template for the subsequent growth of Cu3SnS4 nanoshell tubes, and a so-called "template-mediated growth" mechanism was proposed for the formation of nanoparticle-based nanoshell tubes. It is found that reaction parameters, such as sulfur source, solvent and reaction temperature, play important roles in the growth of tube-like nanoshells. Photo luminescence (PL) spectrum indicates that the obtained Cu3SnS4 nanoshell tubes show emission band in the ultraviolet region. (c) 2005 Elsevier B.V. All rights reserved.