NiWO₄ was prepared using the polymeric precursor method and studied in terms of physical and chemical properties to verify its stability for industrial applications as pigments. The characterization was accomplished using thermal analyses, X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL) and UV–Vis spectroscopies, colorimetric coordinates, and Raman spectra. Increasing the temperature, successive exothermic reactions were observed and they are related with thermal decomposition of the organic compound. The stability was reached at ~700 °C. The material is verified to become completely free of second phase at ~800 °C. The end NiWO4 powders showed an intense charge transfer (CT)-related tail centered in the ultraviolet region, resulting in a yellow product. In addition, the powders exhibited broad excitation band and broad deep blue–green emission band, which were enhanced with increasing powders’ crystallinity.

中文翻译：

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通过聚合物前驱体方法制备的NiWO 4粉末用作陶瓷发光颜料

镍WO ₄使用聚合物前体方法制备的丙烯酸酯，经过物理和化学性质研究，以验证其在工业上作为颜料的稳定性。使用热分析，X射线衍射（XRD），扫描电子显微镜（SEM），光致发光（PL）和UV-Vis光谱，比色坐标和拉曼光谱来完成表征。升高温度，观察到连续的放热反应，它们与有机化合物的热分解有关。在约700°C时达到了稳定性。经验证，该材料在〜800°C时完全不含第二相。最终的NiWO4粉末在紫外线区域居中显示出强烈的电荷转移（CT）相关尾巴，产生黄色产物。此外，