Ming Zhao et al 2009 J. Phys.: Conf. Ser. 188 012020 doi:10.1088/1742-6596/188/1/012020
Ming Zhao, Jinshu Wang*, Wei Liu and Meiling Zhou
Show affiliationsMo-Cu composite powders were prepared by the Sol-Gel method using citric acid as chelating reagent. The composition, morphology and particle size of the powders were studied by the XRD and TEM. TEM observation result shows the particle size of Mo-Cu powders is about 150nm after reduction and the Mo grains are covered homogeneously by Cu on the surface. The reduction behavior and mechanism were analyzed systematically. Temperature programmed reduction (TPR) results indicate that the appropriate two-step reduction temperatures are 500°C and 700°C, respectively. The results from FT-IR show that the bond of Mo=O is weakened due to the bond of Cu-O-Mo, which leads to the increase of the reduction capability of the Mo-Cu composite oxide powders.
78.30.Er Solid metals and alloys
82.30.-b Specific chemical reactions; reaction mechanisms
Condensed matter: electrical, magnetic and optical
Condensed matter: structural, mechanical & thermal
Issue 1 (2009)
Ming Zhao et al 2009 J. Phys.: Conf. Ser. 188 012020
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