Fast synthesis, formation mechanism, and control of shell thickness of CuS hollow spheres.
Fast synthesis, formation mechanism, and control of shell thickness of CuS hollow spheres.
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DOI：
10.1021/ic900201p
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发表时间：
2009-07
影响因子：
4.6
通讯作者：
Haitao Zhu;Jixing Wang;Daxiong Wu
中科院分区：
文献类型：
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作者：
Haitao Zhu;Jixing Wang;Daxiong Wu
以Cu(2)O纳米颗粒球状聚集体为牺牲模板，在温和条件下快速合成了Cu空心球。利用透射电子显微镜、高分辨率透射电子显微镜、扫描电子显微镜、x射线衍射、热重法和傅里叶变换红外光谱研究了合成过程的机理。结果表明，Cu(2)O纳米颗粒松散团聚体的形成是低温快速合成空心球的关键。通过调节Cu(2)O纳米粒子的聚集程度，可以很容易地控制壳层的厚度。
CuS hollow spheres were quickly synthesized under mild conditions with spherical aggregates of Cu(2)O nanoparticles as sacrificial templates. The mechanism involved in the synthesis process has been studied using transmission electron microscopy, high-resolution transmission electron microscopy, scanning electron microscopy, X-ray diffraction, thermal gravimetry, and Fourier transform infrared spectra. The results show that the formation of loose aggregates of Cu(2)O nanoparticles is the key to the fast synthesis of hollow spheres at low temperature. The thickness of the shell can be controlled easily by adjusting the aggregation degree of the Cu(2)O nanoparticles.