Sustainable cool pigments based on iron and tungsten co-doped lanthanum cerium oxide with high NIR reflectance for energy saving

被引：37

作者：

Chen, Jinqing ^{[1
]}

Xiao, Yu ^{[1
,2
,3
]}

Huang, Bin ^{[2
,3
]}

Sun, Xiaoqi ^{[2
,3
]}

机构：

[1] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Fujian, Peoples R China

[3] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Key Lab Nanomat, Fuzhou 350002, Fujian, Peoples R China

来源：

DYES AND PIGMENTS | 2018年 / 154卷

关键词：

La2Ce2O7; Sustainable; Cool pigment; Near-infrared reflectance; NEAR-INFRARED REFLECTANCE; INORGANIC PIGMENTS; OPTICAL-PROPERTIES; SOLID-SOLUTIONS; RED PIGMENTS; LA2CE2O7; PRASEODYMIUM; MOLYBDENUM; STABILITY; BIVO4;

D O I：

10.1016/j.dyepig.2018.02.032

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The novel non-toxic yellow-orange inorganic pigments La2Ce2-xW0.5xFe0.5xO7+delta (x = 0.1, 0.3, 0.5, 0.7, 0.9) with high near-infrared reflectance have been synthesized. The crystal structure, chemical composition, optical properties (reflectance and absorption properties) and color performance of the synthesized pigments were characterized by several techniques. X-ray diffraction analysis indicated the disordered defect fluorite-type structure of the pigments. The typical pigment La2Ce1.5W0.25Fe0.25O7+delta possessed the high NIR solar reflectance of 82.05% with orange color (L* = 77.21, a* = 8.79, b* = 35.80). Also the influence of calcination temperature has been studied, the higher temperature resulted in enhanced color and slightly reduced reflectance properties. The applicability of typical pigment La2Ce1.7W0.7xFe0.15O7+delta (calcined at 1150 degrees C) was tested on a galvanized sheet, the coating improved the NIR solar reflectance from 19.18% to 71.07%. The acid/alkali resistance studies confirmed the pigments were chemically stable. Thus, the synthesized pigments with vivid yellow-orange color and high NIR reflectance have exhibited application potentials.

引用

页码：1 / 7

页数：7

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