Preparation and characterization of yttria-stabilized zirconia nanotubes

Preparation and characterization of yttria-stabilized zirconia nanotubes
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氧化钇稳定氧化锆纳米管的制备及表征

DOI:
10.1016/j.matchemphys.2008.04.017
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发表时间:
2008-10
影响因子:
4.6
通讯作者:
Meng, Bo
Meng, Bo
中科院分区:
材料科学3区
文献类型:
--
作者:
Ma, Zi-Feng;Tan, Xiaoyao;Meng, Xiuxia;Yang, Naitao;Meng, Bo

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以多孔阳极氧化铝(AAO)为模板,采用溶胶-凝胶法制备了氧化钇稳定的氧化锆(YSZ)纳米管。采用X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、能量色散X射线(EDX)谱和选区电子衍射(SAED)等技术对所制备的YSZ纳米管的形貌和晶体结构进行了表征。YSZ纳米管的长度和直径分别为50μm和200 nm,这与模板孔的尺寸很好地吻合,而纳米管的壁厚取决于浸渍时间。XRD和SAED测试结果表明,在1073 K下烧结后得到的YSZ纳米管具有多晶结构和立方晶相。Brunauer-Emmett-Teller(BET)测量显示,YSZ纳米管具有约40.5m2 g-1的比表面积,其高于对应于YSZ纳米粉末的比表面积。
Yttria-stabilized zirconia (YSZ) nanotubes were synthesized by the sol–gel method using porous anodic alumina oxide (AAO) as the templates. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersion X-ray (EDX) spectrum and selected area electron diffraction (SAED) techniques were used to characterize the morphology and crystalline structure of the prepared YSZ nanotubes. The length and the diameter of the YSZ nanotubes are 50μm and 200nm, respectively, which are in good agreement with the dimensions of the template pores, while the wall thickness of the nanotubes depends on the impregnation time. XRD and SAED measurements indicate that the obtained YSZ nanotubes after sintering at 1073K possess a polycrystalline structure and a cubic crystal phase. Brunauer–Emmett–Teller (BET) measurement shows that the YSZ nanotubes have a surface specific area of around 40.5m2g−1that is higher than that corresponding to the YSZ nanopowders.
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