Template-free synthesis of Cu2O hollow nanospheres and their conversion into Cu hollow nanospheres

✍ Scribed by Hualin Wang; Shengnan He; Shaoming Yu; Tiejun Shi; Shaotong Jiang

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 381 KB
• Volume: 193
• Category: Article
• ISSN: 0032-5910
• DOI: 10.1016/j.powtec.2009.03.019

✦ Synopsis

Synthesis Cu hollow nanospheres

In this paper, Cu 2 O hollow nanospheres were first generated through a template free process, and then Cu hollow nanospheres were prepared using Cu 2 O hollow nanospheres as precursor and H 2 as reductant. Phase identification and morphology observation of the products were carried out by X-ray diffraction(XRD), Transmission electron microscopy (TEM) and Field scanning electron microscopy (FSEM). The results show that Cu 2 O nanospheres generated at reflux are porous and hollow both in absolute alcohol and tert-butyl alcohol. It is feasible to fabricate well-dispersed Cu hollow nanospheres from Cu 2 O hollow nanospheres at 170 °C. Moreover, a remarkable blue shift effect was found in the ultraviolet-visible light (UV-visible) absorption spectra for both Cu 2 O and Cu hollow nanospheres.