2000 photochemistry, radiation chemistry, sonochemistry, mechanochemistry

photochemistry, radiation chemistry, sonochemistry, mechanochemistryH 3000

52 - 016Sonochemical Synthesis of Nanocrystalline Copper Tellurides Cu7Te4

and Cu4Te3 at Room Temperature. — Cu4Te3 (87% yield) and Cu7Te4(91% yield) are prepared by sonolysis of solutions of Te, CuCl2·2H2O, andN2H4·H2O (only for the latter compound) in ethylenediamine (20 ◦C, 20 kHz,100 W/cm2, 3 h). The produced nanocrystalline particles are characterized bypowder XRD, TEM, and XPS. The formation mechanism of nanocrystallinetellurides under high-intensity ultrasonic irradiation is discussed. — (LI, BIN;XIE, YI; HUANG, JIAXING; LIU, YU; QIAN, YITAI; Chem. Mater. 12 (2000)9, 2614-2616; Struct. Res. Lab., Univ. Sci. Technol. China, Hefei 230026,Anhui, Peop. Rep. China; EN)

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