Preparation, characterization, and catalytic activity of rare earth metal oxide nanoparticles

2012 ◽  
Vol 111 (2) ◽  
pp. 1073-1082 ◽  
Author(s):  
Supriya Singh ◽  
Pratibha Srivastava ◽  
Inder Pal Singh Kapoor ◽  
Gurdip Singh
Keyword(s):  
Catalytic Activity ◽  
Rare Earth ◽  
Metal Oxide ◽  
Rare Earth Metal ◽  
Metal Oxide Nanoparticles ◽  
Earth Metal ◽  
Oxide Nanoparticles ◽  
Rare Earth Metal Oxide

Hydrothermal Synthesis of Rare-Earth Oxide Nanocatalysts for Automotive Exhaust Clean-Up

2012 ◽  
Vol 512-515 ◽  
pp. 1624-1629 ◽  
Author(s):  
Rui Gang Wang ◽  
Varun Sama ◽  
Ding Qiang Li ◽  
Samuel I. Mutinda
Keyword(s):  
Rare Earth ◽  
Metal Oxide ◽  
Rare Earth Metal ◽  
Metal Oxide Nanoparticles ◽  
Earth Metal ◽  
Rare Earth Oxide ◽  
Gravimetric Analysis ◽  
Synthesis Conditions ◽  
Rare Earth Metal Oxide ◽  
The Rare Earth

Three rare-earth metal oxide nanopowders (CeO2, PrO2, and TbO2) were synthesized using a facile hydrothermal method in a Teflon-lined autoclave. The rare-earth metal oxide nanocrystals with variable morphology were prepared by controlling the synthesis conditions with temperatures in the range of 70−220 °C. X-ray diffraction (XRD), thermal gravimetric analysis (TGA), and temperature programmed reduction (TPR) were used to characterize the average structures and redox properties of these materials. Transmission electron microscopy (TEM) was used to investigate the morphology, particle size, and formation and growth mechanisms of the rare-earth metal oxide nanoparticles in solution-based environment.

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