Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4
Liu, Zheng-Wei1,2,3; Zhang, Hong-Ling1,2; Luo, Min-Ting1,2; Pei, Li-Li1,2; Shi, Yi-Lang4; Cai, Zai-Hua4; Xu, Hong -Bin1,2; Zhang, Yi1,2
2017
发表期刊CERAMICS INTERNATIONAL
ISSN0272-8842
卷号43期号:1页码:1231-1235
摘要Molten salt synthesis (MSS), due to the high reactivity of salts, small diffusion distance and high mobility of species in molten salt, can not only reduce the synthesis temperature but also shorten the reaction time. Herein, MSS method was employed to synthesize delta-CaCr2O4 powder by using CaO, Cr2O3 as raw materials and CaCl2 which has a high solubility of CaO as molten salt. The influence of reaction time was investigated and 5-CaCr2O4 with platelet morphology was obtained after reaction for 2 h at 900 degrees C. Pure rod-like beta-CaCr2O4 was further prepared by simply annealing the as-synthesized delta-CaCr2O4 in argon atmosphere for 3 h at 1100 degrees C. The magnetization and its corresponding reciprocal susceptibility of delta-CaCr2O4 and beta-CaCr2O4 samples was also measured and calculated, which indicated a paramagnetic arrangement and an antiferromagnetic arrangement during the test temperature range 2-250 K, respectively.
关键词Cacr2o4 Platelet Magnetic Properties Molten Salt
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.ceramint.2016.10.069
收录类别SCI
语种英语
关键词[WOS]POWDERS
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics
项目资助者National Basic Research Program (973 Program) of China(2013CB632600) ; National Natural Science Foundation of China(11204304 ; Project Fund of Hubei Zhenhua Chemical Co. LTD. ; 21406233)
WOS记录号WOS:000390737100045
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21871
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Hubei Zhenhua Chem Co LTD, Huangshi 435001, Hubei Province, Peoples R China
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GB/T 7714
Liu, Zheng-Wei,Zhang, Hong-Ling,Luo, Min-Ting,et al. Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4[J]. CERAMICS INTERNATIONAL,2017,43(1):1231-1235.
APA Liu, Zheng-Wei.,Zhang, Hong-Ling.,Luo, Min-Ting.,Pei, Li-Li.,Shi, Yi-Lang.,...&Zhang, Yi.(2017).Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4.CERAMICS INTERNATIONAL,43(1),1231-1235.
MLA Liu, Zheng-Wei,et al."Molten salt synthesis of delta-CaCr2O4 and its annealing to prepare beta-CaCr2O4".CERAMICS INTERNATIONAL 43.1(2017):1231-1235.
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