Characteristics of Sb2O3 nanoparticles synthesized from antimony by vapor condensation method
Characteristics of Sb2O3 nanoparticles synthesized from antimony by vapor condensation method
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DOI：
10.1016/s0167-577x(03)00476-2
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发表时间：
2004
影响因子：
3
通讯作者：
D. Zeng;Changsheng Xie;B. Zhu;W. Song
中科院分区：
文献类型：
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作者：
D. Zeng;Changsheng Xie;B. Zhu;W. Song
采用蒸汽冷凝法制备了平均粒径约为80 nm的sb2o3纳米颗粒。采用透射电镜（TEM）、XRD、差热分析（DTA）、x射线光电子能谱仪（XPS）和拉曼光谱对其进行了表征。由于纳米效应，纳米粉体的放热峰温度低于微粉体，反应温度跨度窄，氧化放热较大。XPS分析表明，少量的锑仍以金属态存在于纳米颗粒中。间隙原子可能是导致拉曼光谱特征峰红移（3 ~ 6.4 cm−1）的主要原因。
Sb2O3nanoparticles with an average size of approximately 80 nm were synthesized by vapor condensation method. The characteristics were investigated by means of TEM, XRD, differential thermal analysis (DTA), X-ray photoelectron spectrometer (XPS) and Raman spectroscopy. The exothermic peak temperature for the nanopowder is lower than that of the micropowder, its reactive temperature span is narrower and oxidizing exothermic heat is larger due to the nano-sized effect. XPS analysis shows that a few amount of antimonies are still in metallic states as the interstitial antinomy atoms in the nanoparticles. The interstitial atoms may be mainly responsible for the red shifts (3–6.4 cm−1) of the characteristic peaks in the Raman spectrum.