Deposition of hollow sphere In2O3 coatings by liquid flame spray
Deposition of hollow sphere In2O3 coatings by liquid flame spray
复制标题
液体火焰喷涂空心球In2O3涂层沉积
DOI：
10.1080/02670844.2019.1651551
复制
发表时间：
2019-08
影响因子：
2.8
通讯作者：
Han-Lin Liao
中科院分区：
文献类型：
--
作者：
Chao Zhang;Dong-Jin Sun;Ming Shen;Han-Lin Liao
采用改进的软模板法，在(OH)3悬浮液中用液体火焰喷雾法制备了(OH)3涂层中的空心球。在火焰喷涂的恶劣热机械环境中，In(OH)3的形貌被很好地保存下来，并产生了氧空位。分别对In(OH)3涂层和In(OH)3前驱体进行焙烧，得到了In_2O_3涂层和In_2O_3粉末。随着进料喷嘴直径的增大，涂层的厚度从12 μm增加到22 mm，涂层中单一的空心球之间的连通性好于合成的In2O3粉末。涂层中的In_2O_3为单一的空心球，直径约为1.2∼~1.4 μm，与合成的In_2O_3粉末相似。具有中空球状结构的In_2O_3涂层具有很高的比表面积、良好的互连性、厚度可控以及大量的氧缺陷。
Hollow sphere In(OH)3 coatings were deposited by a simple liquid flame spray with hollow sphere In(OH)3 suspension, which was synthesized by improved soft template methods. The morphology of the In(OH)3 was well preserved and oxygen vacancies were produced in the harsh thermomechanical environment of the flame spraying process. The In2O3 coatings and In2O3 powder were obtained by calcinating the In(OH)3 coatings and In(OH)3 precursor, respectively. The thickness of the coatings increased from 12 to 22 μm as the diameter of the feed nozzle increased, and the interconnection between the single hollow spheres In2O3 in the coatings was better than that of the as-synthesized In2O3 powder. The diameter of the single hollow spheres In2O3 in the coatings was about 1.2∼1.4 μm, which is similar to the as-synthesized In2O3 powder. The In2O3 coatings with hollow spheres possessed a very high specific surface area, excellent interconnections, controllable thickness and numerous oxygen defects.
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