Nano Archive

Synthesis of hexagonal [beta]-Co(OH)2 nano-platelets with high catalytic activity via a low-temperature precipitation method

Xu, ZhenZhen and Chen, ZhongLin and Ben, Yue and Shen, JiMin (2009) Synthesis of hexagonal [beta]-Co(OH)2 nano-platelets with high catalytic activity via a low-temperature precipitation method. Materials Letters, 63 (13-14). 1210 - 1212.

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Official URL: http://www.sciencedirect.com/science/article/B6TX9...

Abstract

Large-scale β-Co(OH)2 hexagonal nano-platelets have been synthesized successfully at 70 °C using only CoCl2 and NaOH as reactants. The physicochemical features of the β-Co(OH)2 hexagonal nano-platelets were characterized by X-ray diffraction (XRD), thermal gravimetric analysis (TGA), scanning electron microscopy (SEM) and nitrogen absorption–desorption. Results showed that the β-Co(OH)2 obtained consisted of thin, regular, hexagonal nano-platelets with diameters and thicknesses of 50–300 nm and 30–80 nm, respectively. A transformation from β-Co(OH)2 to Co3O4 was observed in the temperature range 160–220 °C. The average pore-size and the Brunauer–Emmet–Teller (BET) surface area of the synthesized β-Co(OH)2 were 16.76 nm and 29.45 m2/g. The prepared product had a significant effect on the catalytic decomposition of ozone.

Item Type:Article
Uncontrolled Keywords:Nanomaterials; β-Co(OH)2; Low-temperature precipitation synthesis; Catalysts
Subjects:Material Science > Nanofabrication processes and tools
ID Code:6597
Deposited By:SPI
Deposited On:10 Feb 2010 17:41
Last Modified:10 Feb 2010 17:41

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