Preparing of Nano-Sized Power RE2O3(RE = La,Y,Gd) by Pyrolying Precursors
来源期刊：JOURNAL OF RARE EARTHS2004年增刊第3期
论文作者：Li Liangchao Xu Qingqing Hao Shiyou
Key words：pyrolying; rare earth oxide; nano-sized power;
Abstract: The precursors RE (HSal) 3 ( RE = La, Y, Gd; HSal = C6 H4 (OH) COO) were synthesized by the rheological phase reaction method. The mechanism and products of thermal decomposition of precursors was studied by using TG,DTA, gas chromatography-mass spectrometry (GC-MS). Nano-sized RE2O3 ( RE = La, Y and Gd) power were obtained by thermal decomposition of the precursors in air at 800 ℃. TEM measurement indicates that RE2O3 are spherical particles. The middle level diameter ( d50 ) of the particles are 19.3 ( La2O3 ) , 53.8 ( Y2O3 ) and 28.6 nm( Gd2O3 ) respectively by means of laser particles size analyzer.
Li Liangchao1，Xu Qingqing2，Hao Shiyou1
(1.Department of Chemistry, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004,China;
2.Department of Chemistry and Pharmaceutical, Zhejiang Industry University, Quzhou 324000, China)
Abstract:The precursors RE (HSal) 3 ( RE = La, Y, Gd; HSal = C6 H4 (OH) COO) were synthesized by the rheological phase reaction method. The mechanism and products of thermal decomposition of precursors was studied by using TG,DTA, gas chromatography-mass spectrometry (GC-MS). Nano-sized RE2O3 ( RE = La, Y and Gd) power were obtained by thermal decomposition of the precursors in air at 800 ℃. TEM measurement indicates that RE2O3 are spherical particles. The middle level diameter ( d50 ) of the particles are 19.3 ( La2O3 ) , 53.8 ( Y2O3 ) and 28.6 nm( Gd2O3 ) respectively by means of laser particles size analyzer.
Key words:pyrolying; rare earth oxide; nano-sized power;
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