Formation of copper nanocrystals in alkali-lime silica glass by means of different reducing agents
Formation of copper nanocrystals in alkali-lime silica glass by means of different reducing agents
复制标题
不同还原剂在碱石灰石英玻璃中形成铜纳米晶
DOI：
10.1016/j.jnoncrysol.2004.08.160
复制
发表时间：
2004
影响因子：
3.5
通讯作者：
R. Maschio
中科院分区：
文献类型：
--
作者：
A. Quaranta;R. Ceccato;C. Menato;Luca Pederiva;N. Capra;R. Maschio
在这项工作中，金属锡，碳化硅和金属锌，混合与含铜的碱石灰硅玻璃，以研究胶体铜纳米粒子的沉淀过程中引起的外部还原剂。传统上，金属锡甚至被古代的玻璃制造商用于铜的还原，而SiC，虽然从文献中提出，但尚未对此应用进行适当的研究。此外，根据Ellingham图选择了金属锌，并首次用于诱导玻璃中的铜还原。制备具有不同还原剂浓度的样品。利用X射线衍射（XRD）、紫外-可见吸收光谱和荧光光谱对样品的结构和光学性能进行了表征。此外，利用差示扫描量热法（DSC）研究了不同还原剂与氧化铜之间的氧化还原过程。
In this work, metallic tin, SiC and metallic zinc, were mixed with a copper containing alkali-lime-silica glass in order to investigate the precipitation process of colloidal copper-nanoparticles induced by external reducing agents. Metallic tin has been traditionally employed in copper reduction even by ancient glass makers, while SiC, although suggested from the literature, was not yet properly studied for this application. Moreover, metallic zinc was chosen on the basis of Ellingham’s diagrams and used for the first time for inducing copper reduction in glass. Samples with different reducing agent concentrations were prepared. The structural and optical properties of the samples were characterized by means of X-ray diffraction (XRD), UV–vis absorption and fluorescence spectroscopy. Moreover, the redox processes between the different reducing agents and cupric oxide were studied by means of differential scanning calorimetry (DSC).