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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Structural effect of cobalt ions added to a borophosphate-based glass system
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Structural effect of cobalt ions added to a borophosphate-based glass system

机译：加入硼磷酸盐基玻璃系统的钴离子的结构效果

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摘要

A new melt derived glass system consisting of Co2O3 added to 40P(2)O(5)center dot 25B(2)O(3)center dot 25CaO center dot 10Na(2)O matrix was investigated in order to evaluate the influence of cobalt ions on the network structure. Multiple techniques, i.e. Xray diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, Raman spectroscopy and X-ray Photoelectron Spectroscopy (XPS) were used to characterize the local structure, the nature of the chemical bonding and the surface composition of these samples. The XRD measurements proved the vitreous character of samples with 0 and 3 mol% Co2O3. At higher cobalt oxide content (5, 7 and 10 mol%) the occurrence of a crystalline phase characteristic to Co2P4O12 has been observed. The complementary spectroscopic studies (FTIR and Raman) revealed that the incorporation of Co2O3 enhances the network connectivity and thereby the short range order in samples. Depending on their amount, the cobalt ions differently influence the borophosphate network via the tetraborate/triborate and metaphosphate/pyrophosphate ratios. For the sample containing 10 mol% Co2O3 the FTIR analysis indicates absorptions assigned to vibrations in CoO6 tetrahedra and suggests the presence of six-coordinated cobalt ions in Co3+ valence state. This study has proven that borophosphate based glasses are able to entrap cobalt ions, are sensitive from structural point of view to the amount of Co2O3 and possess interesting structural peculiarities.
机译：由加入40p（2）O（5）中心点25b（2）O（3）中心点25cao中心点10na（2）O基质的Co2O3组成的新的熔融衍生的玻璃系统组成的新熔融衍生的玻璃系统组成。为了评估钴的影响在网络结构上的离子。多种技术，即X射线衍射（XRD），傅里叶变换红外（FTIR）光谱，拉曼光谱和X射线光电子能谱（XPS）用于表征局部结构，化学键合的性质和这些样品的表面组成。 XRD测量证明了用0和3摩尔％CO 2 O 3的样品的玻璃体特征。在较高的钴氧化物含量（5,7和10mol％），已经观察到与CO 2 O 12的结晶相特有的发生。互补光谱研究（FTIR和拉曼）显示CO2O3的掺入增强了网络连接，从而提高了样品中的短距离顺序。取决于其量，钴离子通过四硼酸/结带和偏磷酸盐/焦磷酸盐比不同地影响硼磷酸网络。对于含有10mol％CO 2 O 3的样品，FTIR分析表明在COO6四面体中分配到振动中的吸收，并表明CO 3 +价态中存在六种配位的钴离子。本研究证明，硼磷酸基玻璃能够捕获钴离子，对CO 2 O 3的量的结构的观点敏感，并且具有有趣的结构特性。

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