X-ray diffractionA novel anode material for intermediate temperature solid oxide fuel cells with a composite of La xSR1-xTiO3 has been synthesized by a sol-gel auto-combustion method. X-ray diffraction (XRD) shows that La xSR1-xTiO3 has good chemical compatibility with Gd0.2 Ce0.8O1.9 ...
We have successfully fabricated SrTiO3/(Sr1-x,Lax)TiO3 (STO/SLTO) superlattices on step-terrace structured SrTiO3, in which La defect is distributed in a regular manner of one dimension. The superlattices contain one unit cell thick SLTO layer with various stacking sequences. The charge ...
Effect of doping electrons on the electronic structure of single-crystalline La x Sr 1x TiO 3 samplex (x=0.001, 0.01, 0.05) has been studied for the fractured surface by ultraviolet photoemission spectroscopy (UPS). Two peaks in the band gap region of SrTiO 3 (in-gap peaks) are induced ...
Sr1-x LaxTiO3 (x=0–0.50) nanopowders were synthesized by hydrothermal method. XRD results revealed a cubic perovskite structure of all samples. Second phase of La(OH)3 was found in samples of x=0.30–0.50 with LaTiO3 in that of x=0.50. SEM and TEM images of all products displayed ...
利用溶胶凝胶(sol-gel)法和放电等离子烧结(SPS)制备了 单相的钙钛矿结构LaxSr1-xTiO3(0≤x≤0.15)块体材料,与传统的固相反应法相比,烧结温度大幅降低.在室温至679 K的温度范围内测量了LaxSr1-xTiO3(0≤x≤0.15)的Seebeck系数和电导率,确定了最佳La掺杂量x=0.08. La0.08Sr0.92TiO3在679K时,最大功率因子PF...
The electronic structures of LaxSr1−xTiO3 (x=0.05, 0.10) and SrTiO3−δ have been investigated by soft-X-ray emission spectroscopy. The Raman shift at the t2g-resonance, is a d–d transition between the incoherent and coherent bands and has an energy value of about 2.2 eV, ...
La(x)Sr(1-x)TiO(3)thin filmsSol-gel methodOptical and electrical propertiesHigh transparent LaxSr1-xTiO3thin film is fabricated by sol–gel process.Conductivity of LaxSr1-xTiO3thin films is improved after La doping.LaxSr1-xTiO3thin film is a promising candidate in the field of thin film...
SrTiO3/(Sr1−xLax)TiO3superlatticeslayer-by-layergrowthlatticestrainThe SrTiO3/(Sr1鈭抶,Lax)TiO3 (STO/SLTO) superlattices have been grown on stepped-SrTiO3 substrate using laser-molecular beam epitaxy. The layer-by-layer growth was in-situ monitored by the intensity oscillation of specular ...
SrTiO3, sintering, citric acid synthesis method, electrical conductivity, interconnect,solid oxide fuel cellThe air-sintering characteristics and electrical conductivity of (Sr1x Lax )TiO3 perovskites (0≤x≤ 0.3) synthesized by the citric acid method were evaluated in terms of their use as ...
采用凝胶-浇注法合成钙钛矿复合系的阳极材料Lax Sr1-1.5xTiO3(x=0.1 ～0.4),探究La掺杂量对相组成,烧结性能,力学性能及高温电导率等的影响.LaxSr1-1.5xTiO3粉体在1 100℃下预烧可得到典型的钙钛矿结构.在1400℃下煅烧得到的烧结体的电导率数据显示:当x=0.3时电导率最高,在测试温度为800℃时高达18...