Paper Title:
Evolution of Crystalline Phase and Morphology of the Products Formed during the Hydrothermal Synthesis of Y2O3 Powders
  Abstract

The crystalline phase and morphology of the products formed during the synthesis of yttrium oxide via the hydrothermal treatment yttrium nitrate were characterized by X-ray diffraction, transmission electron microscopy and scanning electron microscopy. Products with high OH/NO3 ratios are formed with the increasing of hydrothermal treatment. The crystalline phases are evolved from Y2(OH)5.14(NO3)0.86•H2O toY4O(OH)9(NO3) and finally Y(OH)3. The hydrothermal reaction conditions play an important role in the synthesis of the microstructures. Results show the particle size and final morphology of samples could be controlled by reaction temperature, reaction time, and OH- concentration. Sheets, hexagonal and needle-like Y2O3 powders are obtained with the hydrothermal treatment of yittrium nitrate at 180 oC to 200oC for 2-8 hours at pH 9-13.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
1275-1279
DOI
10.4028/www.scientific.net/AMR.189-193.1275
Citation
Y. Wang, G. Y. Zhao, L. Yuan, "Evolution of Crystalline Phase and Morphology of the Products Formed during the Hydrothermal Synthesis of Y2O3 Powders", Advanced Materials Research, Vols. 189-193, pp. 1275-1279, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Bi Li, Li Yun Cao, Jian Feng Huang, Jian Peng Wu
Chapter 1: Novel Processing and Manufacturing
Abstract:Nanostructured cobalt sulfide(CoS) can be widely used as high energy density batteries, supercapacitors, solar photovoltaic materials and...
162
Authors: Amnouy Larpkasemsuk, Saowaroj Chuayjuljit, Wirapong Kornpanom, Dujreutai Pongkao Kashima
Chapter 2: Material Science and Materials Processing
Abstract:In this study, local pottery stone (PTS) was hydrothermal treated with 2 M of NaOH at different reaction temperatures (60, 80 and 120°C) and...
801
Authors: Amnouy Larpkasemsuk, Saowaroj Chuayjuljit, Dujreutai Pongkao Kashima
Chapter 2: Material Science and Materials Processing
Abstract:Pottery stone (PTS) microcrystalline powders were synthesized by a hydrothermal method using two concentrations of NaOH solution (2 M and 4...
620
Authors: Li Xiong Yin, Fei Fei Wang, Jian Feng Huang, Dan Wang, Jia Yin Li
Chapter 1: Nanoscale Materials and Nanocomposites
Abstract:SnO2 nanocrystals were synthesized using SnCl4•5H2O and NH3•H2O as the main raw...
122