Shape-controlled synthesis of Cu2O microcrystals by electrochemical method

Cuprous oxide (Cu2O) microcrystals have been successfully synthesized via a facile electrochemical method in alkaline NaCl solution with copper plate and graphite slice as electrodes and Na2Cr2O7 as additive. The as-synthesized products have been systematically studied by X-ray powder diffraction (X...

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Veröffentlicht in:	Applied surface science 2010-01, Vol.256 (7), p.2269-2275
Hauptverfasser:	Zhao, Wenyan, Fu, Wuyou, Yang, Haibin, Tian, Chuanjin, Ge, Ruixia, Wang, Chunjie, Liu, Zhanlian, Zhang, Yanyan, Li, Minghui, Li, Yixing
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties COPPER OXIDE Cross-disciplinary physics: materials science rheology CRYSTAL STRUCTURE Crystals CUPROUS OXIDE Diffraction ELECTRODES Exact sciences and technology GRAPHITE Growth from solutions Materials science Methods of crystal growth physics of crystal growth MICA Microcrystals OXIDES Physics SCANNING ELECTRON MICROSCOPY Single-crystal and powder diffraction Structure of solids and liquids crystallography TRANSMISSION ELECTRON MICROSCOPY X-ray diffraction and scattering
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Zusammenfassung:	Cuprous oxide (Cu2O) microcrystals have been successfully synthesized via a facile electrochemical method in alkaline NaCl solution with copper plate and graphite slice as electrodes and Na2Cr2O7 as additive. The as-synthesized products have been systematically studied by X-ray powder diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM), selected area electron diffraction (SAED) and ultraviolet-visible spectrum (UV-vis). The results indicate that the pH value, temperature and potential play important roles in the morphology control besides the crystal habits of Cu2O. The possible mechanism has been explored in the article.
ISSN:	0169-4332 1873-5584
DOI:	10.1016/j.apsusc.2009.10.051