ICCAS OpenIR
Effect of the organic additions on crystal growth behavior of ZrO2 nanocrystals prepared via sol-gel process
Huang, Wenzhi2,3; Yang, Jili2,3; Meng, Xiangsheng1; Cheng, Yongliang2,3; Wang, Chunjie2,3; Zou, Binglin2; Khan, Zuhair2; Wang, Zhen1; Cao, Xuegiang2
2011-04-15
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume168Issue:3Pages:1360-1368
AbstractZrO2 powders were synthesized via sol-gel process using zirconium oxychloride octahydrate as the raw material. The effects of addition of glacial acetic acid and N,N-dimethylformamide (DMF) on crystal growth and chemical bond of powders were discussed. The structural evolution, phase transformation and morphological characteristic of powders were investigated by differential scanning calorimetric analysis (DSC). powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). After adding the acetic acid and DMF, the crystallite size of ZrO2 decreased from about 26.48 to 13.94 nm when calcination at 600 degrees C for 40 min, and the activation energy for crystal growth reduced approximately from 7.76 +/- 0.62 to 2.74 +/- 0.28 kJ/mol in the initial stage, while abruptly increased to 26.48 +/- 1.09 kJ/mol in the later stage. The specific surface area decreased from 26.73 to 0.51 m(2)/g. Meanwhile, the metastable tetragonal phase could be stabilized in ZrO2 nanocrystals at 600 degrees C for 40 min. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
KeywordPhase Transformation Activation Energy Crystallite Size Effect Metastable Tetragonal Phase
DOI10.1016/j.cej.2011.02.027
Indexed BySCI
Language英语
WOS IDWOS:000290369200046
PublisherELSEVIER SCIENCE SA
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/71502
Collection中国科学院化学研究所
Corresponding AuthorWang, Zhen
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resources Utilizat, Changchun 130022, Jilin, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Huang, Wenzhi,Yang, Jili,Meng, Xiangsheng,et al. Effect of the organic additions on crystal growth behavior of ZrO2 nanocrystals prepared via sol-gel process[J]. CHEMICAL ENGINEERING JOURNAL,2011,168(3):1360-1368.
APA Huang, Wenzhi.,Yang, Jili.,Meng, Xiangsheng.,Cheng, Yongliang.,Wang, Chunjie.,...&Cao, Xuegiang.(2011).Effect of the organic additions on crystal growth behavior of ZrO2 nanocrystals prepared via sol-gel process.CHEMICAL ENGINEERING JOURNAL,168(3),1360-1368.
MLA Huang, Wenzhi,et al."Effect of the organic additions on crystal growth behavior of ZrO2 nanocrystals prepared via sol-gel process".CHEMICAL ENGINEERING JOURNAL 168.3(2011):1360-1368.
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