Controlling the morphology of yttrium oxide through different precursors synthesized by hydrothermal method

✍ Scribed by Nan Li; Kazumichi Yanagisawa

• Book ID: 104030134
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 953 KB
• Volume: 181
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1016/j.jssc.2008.03.031

✦ Synopsis

Y 2 O 3 sheets, rods, needles and tubes were synthesized from three precursors through hydrothermal reactions followed by calcination. The phase distribution and decomposition behaviors of the three precursors, Y 2 (OH) 5.14 (NO 3 ) 0.86 Á H 2 O, Y 4 O(OH) 9 (NO 3 ) and hexagonal Y(OH) 3 , were investigated. The reaction temperature and initial pH value during the hydrothermal reaction showed great influence on the shape and particle size of the products. The precursors were converted to Y 2 O 3 particles with the retained original morphology of the precursors.