Title :
Preparation and characterization of WO3 nano-powder with microemulsion method
Author :
Chang-Jun Hou ; Xian-Zhen Diao ; Yi-Ke Tang ; Dan-Qun Huo ; Li-Fan Wei
Author_Institution :
Chem. & Chem. Eng. Dept., Chongqing Univ., Chongqing
Abstract :
WO3 nano-powder was synthesized by micro-reactor method in CTAB/n-butyl alcohol/n- octane/H2O microemulsion system and sodium tungstate and hydrochloric acid as reactants. Structure and properties of WO3 nano-powder were characterized by X-ray diffractometer, transmissive electron microscopy and UV-vis. It is shown that the particle sizes, topography of the particles and phase structures of WO3 nano-powder are changed with moisture content in the microemulsion system, calcination temperatures and different reactants, the sizes of WO3 nano-powder increase with moisture content in the microemulsion system and calcination temperatures. The sizes of WO3 particles obtained from ammonium tungstate as reactant are smaller than that sodium tungstate as reactant.
Keywords :
X-ray diffraction; microemulsions; nanoparticles; sodium compounds; transmission electron microscopy; tungsten compounds; UV vis; WO3; X ray diffractometer; hydrochloric acid; microemulsion method; microreactor method; nanopowder; sodium tungstate; transmissive electron microscopy; Nanoelectronics; CTAB; W/O microemulsion; micro-reactor; tungsten trioxide nanoparticles;
Conference_Titel :
Nanoelectronics Conference, 2008. INEC 2008. 2nd IEEE International
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1572-4
Electronic_ISBN :
978-1-4244-1573-1
DOI :
10.1109/INEC.2008.4585505
