均相沉淀模板法制备纳米Y_2O_3空心球研究  

Preparation of Y_2O_3 Hollow Nanospheres by Homogeneous Precipitation Templates Method

作　　者：江学良[1] 杜银[1] 王维[1] 杨浩[1] 任军[1] 

机构地区：[1]武汉工程大学,湖北武汉430073

出　　处：《稀有金属材料与工程》2014年第1期249-252,共4页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51273154);湖北省自然科学基金(2011CBD220);武汉工程大学研究生教育创新基金(20110034)

摘　　要：以粒径约150 nm的碳球为模板,通过均相沉淀法制备出Y(OH)3/碳球复合微球,煅烧除去碳球模板,得到粒径约300 nm的纳米Y2O3空心球。通过傅里叶红外光谱(FT-IR)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)和热失重分析(TG)以及X射线光电子能谱(XPS)等测试手段表征复合微球和纳米Y2O3空心球的形貌和结构。结果表明:空心球由立方晶系纳米Y2O3构成,粒径约为300 nm,壳厚度约为20 nm。Carbon sphere template with a diameter of about 150 nm was uniformly coated with Y2O3 by homogeneous precipitation templates method. The Y2O3 hollow nanospheres with a diameter of about 300 nm were obtained after the carbon sphere template was removed through calcination at a proper temperature. Infrared spectrograph （FT-IR）, scanning electron microscope （SEM）, transmission electron microscope （TEM）, X-ray diffraction （XRD）, thermogravimetry （TG） and X-ray photoelectron spectrum （XPS） were employed to characterize the morphology and structure of the Y2O3 hollow nanospheres. The results reveal that the cubic-phase Y2O3 hollow nanospheres with a diameter of 300 nm as well as the thin shell thickness about 20 nrn can be prepared.

关 键 词：碳球模板 均相沉淀 氧化钇 空心球 

分 类 号：TB383.1[一般工业技术—材料科学与工程]