ICCAS OpenIR
Influence of magnesium source on the crystallization behaviors of magnesium hydroxide
Gao, Yanyan1; Wang, Haihua1; Su, Yunlan2; Shen, Qiang1; Wang, Dujin2
2008-08-01
Source PublicationJOURNAL OF CRYSTAL GROWTH
ISSN0022-0248
Volume310Issue:16Pages:3771-3778
AbstractThe crystallization of magnesium hydroxide [Mg(OH)(2)] from the aqueous solutions of magnesium chloride (MgCl2) or magnesium dodecyl sulfate [Mg(DS)(2)] was conducted by means of the slowly diffusing of ammonia gas at 30 degrees C. When the aqueous solution of 5.0 x 10(-3) mol/L MgCl2 was used as a reaction medium, the sunflower-shaped superstructures of thin and branched Mg(OH)(2) sheets were obtained at 2 d; the prolongation of reaction time and the increase of MgCl2 concentration caused the formation and the consequent agglomeration of Mg(OH)(2) platelets. Interestingly, the aqueous solution of 5.0 x 10(-3) mol/L Mg(DS)(2) could be referred as the counterpart of 5.0 x 10(-2) mol/L MgCl2 at the surface nucleation of Mg(OH)(2). The precipitates sampled from Mg(DS)(2) solutions at 2 or 3 d presented the lamellar aggregates of Mg(OH)(2) platelets; while these sampled at 6 and 12 d showed the column-shaped structures of Mg(OH)(2) under the transmission electron microscopy (TEM) observation, suggesting the further growth of Mg(OH)(2) platelets along the c-axis perpendicular to the [0 0 1] face. Meanwhile, the nucleation, the crystal orientation, and the crystallographic defect were also discussed, indicating the different crystallization habits of Mg(OH)(2) in the aqueous solutions of different magnesium sources. (c) 2008 Elsevier B.V. All rights reserved.
KeywordCrystal Morphology Growth From Solutions Chemical Vapor Deposition Processes Magnesium Chloride Magnesium Dodecyl Sulfate Magnesium Hydroxide
DOI10.1016/j.jcrysgro.2008.05.032
Indexed BySCI
Language英语
WOS IDWOS:000258801200016
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64842
Collection中国科学院化学研究所
Corresponding AuthorShen, Qiang
Affiliation1.Shandong Univ, Sch Chem & Chem Engn, Educ Minist, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China
2.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem,Beijing Natl La, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Gao, Yanyan,Wang, Haihua,Su, Yunlan,et al. Influence of magnesium source on the crystallization behaviors of magnesium hydroxide[J]. JOURNAL OF CRYSTAL GROWTH,2008,310(16):3771-3778.
APA Gao, Yanyan,Wang, Haihua,Su, Yunlan,Shen, Qiang,&Wang, Dujin.(2008).Influence of magnesium source on the crystallization behaviors of magnesium hydroxide.JOURNAL OF CRYSTAL GROWTH,310(16),3771-3778.
MLA Gao, Yanyan,et al."Influence of magnesium source on the crystallization behaviors of magnesium hydroxide".JOURNAL OF CRYSTAL GROWTH 310.16(2008):3771-3778.
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