Synthesis of 1D Cu(OH)2 Nanowires and Transition to 3D CuO Microstructures under Ultrasonic Irradiation, and Their Electrochemical Property

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• 作者：Yonghong Ni ; Hua Li ; Lina Jin ; Jianming Hong
• 刊名：Crystal Growth & Design
• 出版年：2009
• 出版时间：September 2, 2009
• 年：2009
• 卷：9
• 期：9
• 页码：3868-3873
• 全文大小：1097K
• 年卷期：v.9,no.9(September 2, 2009)
• ISSN：1528-7505

文摘

1D Cu(OH)₂ nanowires with a high yield were successfully synthesized under ultrasound irradiation of 40 kHz ultrasonic waves at the output power of 100% at 70 °C for 5 min without the assistance of any surfactant, employing CuCl₂·2H₂O and NaOH as the initial materials. X-ray diffraction (XRD) analyses and field emission scanning electron microscopy (SEM) observations of the products showed that 1D Cu(OH)₂ nanowires could be completely converted into 3D CuO microstructures after the system had been continuously irradiated by ultrasonic waves for 45 min. A time-dependent shape evolution was investigated. Furthermore, research indicated that Cu(OH)₂ nanowires and CuO microstructures could promote electron transfer between the glassy-carbon electrode and organic small molecules such as l-ascorbic acid and catechol, which is rarely reported in previous literature.