摘要
采用溶胶凝胶法,在孔径为200nm的阳极氧化铝模板中制备了Bi3.15Nd0.85Ti3O12纳米管阵列。通过XRD、SEM、TEM、HRTEM、SAED和Raman光谱测试手段对纳米管阵列的物相、微结构和声子振动特性进行了表征。研究表明,所合成BNdT纳米管为钙钛矿相多晶结构,纳米管外径约为200nm,管壁厚约10nm,管径和长度与所用AAO模板尺寸一致。Raman光谱分析表明,Nd离子取代了类钙钛矿层中A位的Bi离子。
Bi3.15Nd0.85Ti3O12（BNdT） nanotube arrays were fabricated by sol-gel method utilizing porous anodic aluminum oxide （AAO） templates with 200 nm pore diameters. The phase, microstructure and phonon vibrational properties of the BNdT nanotube arrays were characterized by XRD, SEM, TEM, HRTEM, SAED and Raman spectrum respectively. The results show that the BNdT nanotubes are polycrystalline with perovskite structure. The diameter and wall thickness of BNdT nanotubes are about 200 and 10 nm respectively, which are dependent on the structure of AAO template employed. The Raman spectra indicated that Nd substituted for Bi in the A site in the perovskite layer of BNdT.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2009年第A02期234-236,共3页
Rare Metal Materials and Engineering
基金
国家自然科学基金(50572026)资助项目
