Synthesis and characterization of ZrO2 hollow spheres
Synthesis and characterization of ZrO2 hollow spheres
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DOI：
10.1016/j.matlet.2008.12.053
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发表时间：
2009-05-15
影响因子：
3
通讯作者：
Yuan, Fangli
中科院分区：
文献类型：
--
作者：
Guo, Chenyi;Hu, Peng;Yuan, Fangli
以碳球为模板，采用一种简单的方法合成了平均粒径约为500 nm、壳层厚度约为50 nm的ZrO 2空心微球。采用氨水沉淀法在胶体碳表面沉积ZrCl 4溶液，制备出C-Zr（OH）4核壳异质结构前驱体，经煅烧后得到相应的ZrO 2空心微球。采用SEM、XRD、TGA、BET等手段对合成产物的组成、形貌、尺寸和晶体结构进行了表征。研究了超声分散和分离工艺对空心球的影响，并通过添加表面活性剂PEG-1000对合成的ZrO 2空心球进行了壳层结构调整。(C)2009爱思唯尔有限公司版权所有。
ZrO2 hollow microspheres with the average diameter of about 500 nm and the shell thickness of about 50 nm were synthesized by a facile technique using carbon spheres as templates. The corresponding ZrO2 hollow microspheres were obtained by calcining the precursors of C-Zr(OH)(4) core-shell heterostructures, which were synthesized with the precipitation of ZrCl4 solution with aqueous ammonia on the surface of colloid carbons. SEM, XRD, TGA and BET were used to characterize the composition, morphology, size and crystal structure of synthesized products. The effects of ultrasonic dispersion and separation process on the hollow spheres were studied, and the surfactant PEG-1000 was added to tune the shell structure of synthesized ZrO2 hollow spheres. (C) 2009 Elsevier B.V. All rights reserved.