Preparation and IR Spectra Study of Rare Earth Orthophosphates

摘要：

By liquid precipitation, lanthanide element orthophosphate was prepared and heat-treated at a series of temperatures. By FT-IR and XRD, it is found that bands near 1000 and 540cm<-1> split above 800 ~C for the rare earth before Tb, since the system turned from hexagonal phase to monoclinic phase. For those after Tb, obvious tetragonal phase could be found above 800℃. In infrared spectra, with the increasing atomic number, bands turned to be blue shift. So rare earth orthophosphates absorption bands could be controlled by changing their heat- treating temperature or the proportion of different rare earth ions.

关键词： orthophosphate infrared liquid precipitation rare earths

作者: Lu Chunhua(陆春华) Hu Jie(胡洁) Xu Zhongzi(许仲梓) Ni Yaru(倪亚茹)

作者单位: College of Material Science and Engineering, Nanjing University of Technology, Nanjing 210009, China

会议类型: 国际会议

会议名称: 第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)

会议地点: 包头

会议语种:英文

页码: 273-276

在线出版日期: 2007-08-07（万方平台首次上网日期，不代表论文的发表时间）