人工晶体学报2021，Vol.50Issue(1)：80-87,8.
基于磁光应用的TbO1.81和Tb2O3超细粉末的合成
Synthesis of Ultrafine TbO1. 81 and Tb2O3 Powders for Magneto-Optical Application
摘要
Abstract
Ultrafine TbO1. 81 and Tb2 O3 powders were obtained from the pyrolytic precursor prepared via a wet chemical route using ammonium hydrogen carbonate ( AHC ) as the precipitant. The precipitation precursor has a chemical composition of hydrated terbium carbonate and exhibits one-dimensional nanorod morphology. The average width of the nanorods rises as the increase of AHC concentration. Calcining the precursor in air directly yields a round TbO1. 81 nanopowder with an average particle size of ～140 nm through dehydration, decarbonation and particle growth processes. On the other hand, a Tb2 O3 powder with a finer particle size of ～85 nm is reduced under flowing hydrogen atmosphere upon heating. The molar ratio of AHC to Tb3+significantly affects the particle dispersion of final oxide products and the best molar ratio for the synthesis of well dispersed powder is 1:1. The bandgap energies of TbO1. 81 and Tb2 O3 are ～1. 67 eV and 5. 20 eV, respectively.关键词
超细粉末/Tb2O3/TbO1.81/共沉淀法/磁光效应/形貌Key words
ultrafine powder/Tb2 O3/TbO1. 81/co-precipitation method/magneto-optical effect/morphology分类
数理科学引用本文复制引用
冯凯,吕滨,程红梅,吴少凡,王燕,刘永兴..基于磁光应用的TbO1.81和Tb2O3超细粉末的合成[J].人工晶体学报,2021,50(1):80-87,8.基金项目
National Natural Science Foundation of China (51702171, 51872286, 51832007) （51702171, 51872286, 51832007）
Zhejiang Provincial Qianjiang Talent Program of China (QJD1702017) （QJD1702017）
Natural Science Foundation of Ningbo (2019A610052) （2019A610052）
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences (2008DP173016) （2008DP173016）
Science and Technology Plan Leading Project of Fujian Province (2018H0046) （2018H0046）
