Nanosized barium carbonate particles stabilized by cetyltrimethylammonium bromide at the water/hexamethylene interface by Long Chen, Yuhua Shen, Anjian Xie, Jinmiao Zhu, Zhifu Wu, and Liangbao Yang

Crystal Research and Technology

Cryst. Res. Technol. 42, 886 (2007) - Abstract -

Nanosized barium carbonate particles stabilized by cetyltrimethylammonium bromide at the water/hexamethylene interface

Long Chen, Yuhua Shen, Anjian Xie, Jinmiao Zhu, Zhifu Wu, and Liangbao Yang

School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, P. R. China

Keywords	barium carbonate, nanoparticle, cetyltrimethylammonium bromide, diethyl carbonate, interface
PACS	61.46.-w, 61.46.Hk, 68.37.-d
DOI	10.1002/crat.200710942

Nanoparticles of barium carbonate (BaCO₃) have been synthesized in situ from barium chloride by the slow release of carbon dioxide by alkaline hydrolysis of diethyl carbonate, and stabilized by cetyltrimethylammonium bromide (CTAB) at the water/hexamethylene interface. Transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray powder diffractometry were used to characterize the products. The results indicate that spherical BaCO₃ nanoparticles are obtained with poor crystallinity and diameters ranging from 30 to 300 nm. The possible formation mechanism of the nanoparticles at the interface is discussed.

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