Department of Nuclear and Quantum Engineering (NQE), Korea Advanced Institute of Science and Technology (KAIST), 373-1 Guseong, Yuseong, Daejeon 305-701, Republic of Korea ; Nanomaterials Research Group, Physics Division, PINSTECH, Islamabad, Pakistan.
Department of Nuclear and Quantum Engineering (NQE), Korea Advanced Institute of Science and Technology (KAIST), 373-1 Guseong, Yuseong, Daejeon 305-701, Republic of Korea.
Nanoscale Res Lett. 2014 Oct 4;9(1):553. doi: 10.1186/1556-276X-9-553. eCollection 2014.
This work reports the formation of self-organized Zircaloy-4 (Zr-4) oxide nanotubes in viscous organic ethylene glycol (EG) electrolyte containing a small amount of fluoride salt and deionized (DI) water via an electrochemical anodization. The structure, morphology, and composition of the Zr-4 oxide nanotubes were studied using X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), EDX, and XPS. SEM results showed that the length of the nanotubes is approximately 13 μm, and TEM results showed that the inner diameter of the Zr-4 oxide nanotubes is approximately 20 nm with average wall thickness of approximately 7 nm. XRD and selected area electron diffraction pattern (SAED) results confirmed that the as-anodized Zr-4 oxide nanotubes have cubic crystalline structure. Both cubic and monoclinic phases were found after annealing of Zr-4 oxide nanotubes. The tubular structure morphology of Zr-4 oxide nanotubes did not remain intact after annealing which is attributed to the elimination of F species from the annealed nanotubes.
这项工作报道了在含有少量氟盐和去离子水的粘性有机乙二醇（EG）电解液中，通过电化学阳极氧化自组装形成 Zircaloy-4（Zr-4）氧化纳米管。使用 X 射线衍射（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、EDX 和 XPS 研究了 Zr-4 氧化纳米管的结构、形貌和组成。SEM 结果表明，纳米管的长度约为 13 μm，TEM 结果表明，Zr-4 氧化纳米管的内径约为 20nm，平均壁厚约为 7nm。XRD 和选区电子衍射图谱（SAED）结果证实，所制备的 Zr-4 氧化纳米管具有立方晶结构。Zr-4 氧化纳米管退火后发现存在立方相和单斜相。退火后，Zr-4 氧化纳米管的管状结构形貌不再完整，这归因于退火纳米管中 F 物种的消除。
