Dual-enhancement of chromaticity and thermal stability:In-situ synthesis of core-shell γ-Ce_(2)S_(3) @CePO_(4) configuration  

作　　者：Kanglong Hui Wei Dong Jipeng Fu Mingxue Tang Qi Wei Chengyu Li Hongjie Zhang 

机构地区：[1]Changchun Institute of Applied Chemistry Chinese Academy of Sciences,Changchun 130022,China [2]Center for High Pressure Science and Technology Advanced Research,Beijing 100094,China [3]Institute of Optoelectronic Materials and Devices,China Jiliang University,Hangzhou 310018,China [4]College of Materials Science and Engineering,Beijing,University of Technology,Beijing 100124,China

出　　处：《Journal of Rare Earths》2022年第5期800-806,I0005,共8页稀土学报（英文版）

基　　金：Project supported by the Natural Science Foundation of Zhejiang Province,China(LQ21E020006);the National Key Research and Development Program of China(2019YFA0709101);Opening Fund of State Key Laboratory of Rare Earth Resource Utilization,China(Changchun Institute of Applied Chemistry)(RERU2018012)。

摘　　要：Non-toxic rare earth(RE) composite materials are promising and active in optoelectronic fields,such as pigment.In this work,Na ions doped γ-Ce_(2) S_(3) pigments were synthesized by solid-phase vulcanization and followed by in-situ synthesis to prepare an outer layer of CePO_(4) film.The characterizations of X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray photoelectron spectroscopy(XPS),solid state nuclear magnetic resonance(NMR) indicate that Na-dopedγ-Ce_(2) S_(3) and CePO_(4) uniformly and tightly coated core-shell structure was successfully synthesized.The thermogravimetric analysis(TG) and reflection spectrum(RS) reveal that the CePO_(4) coating significantly improves the colorant and thermal stability performance of γ-Ce_(2) S_(3) .The excellent color quality of γ-Ce_(2) S_(3) @CePO_(4)(L*=45.16,a*=55.94.b*=44.53) is achieved and the red color(L*=43.82,a*=49.79,b*=38.04) is still retained even if the sample is heated in air at 400℃ for 30 min.

关 键 词：γ-Ce_(2)S_(3) Red pigment Core-shell structure CePO_(4)coating Rare earths 

分 类 号：TQ620.1[化学工程—精细化工]