Structural Characterization of a New Magnesium Oxysulfate Hydrate Cement Phase and Its Surface Reactions with Atmospheric Carbon Dioxide

ISL OpenIR > 青海盐湖研究所知识仓储

	Structural Characterization of a New Magnesium Oxysulfate Hydrate Cement Phase and Its Surface Reactions with Atmospheric Carbon Dioxide
	Runcevski, Tomce 1; Wu, Chengyou 2; Yu, Hongfa 2; Yang, Bo2 ; Dinnebier, Robert E.1
	2013-11-01
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷号	96 期号:11 页码:3609-3616
摘要	A new magnesium oxysulfate hydrate phase, 5Mg(OH)(2)center dot MgSO4 center dot 7H(2)O was synthesized and structurally characterized. The new phase crystallizes in the form of microsized needles and its crystal structure was solved using X-ray powder diffraction. The crystal packing is made of infinite triple MgO6 chains, intercalated with sulfate groups, water molecules, and hydroxide anions. Using vibrational spectroscopy [infrared (IR) and Raman] and Rietveld refinement, the arrangement of water molecules and hydroxide anions were observed to be statistically distributed and dynamically disordered. The high-temperature behavior and decomposition were studied by thermal analyses and in situ X-ray powder diffraction. The high-temperature measurements reveal the presence of five decomposition stages from the new phase to the production of MgO. After the reactions with atmospheric carbon dioxide were analyzed using micro-Raman spectroscopy, two new carbonate phases were detected on the surface of the material.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/4459
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany 2.Chinese Acad Sci, Qinghai Inst Salt Lake, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Runcevski, Tomce,Wu, Chengyou,Yu, Hongfa,et al. Structural Characterization of a New Magnesium Oxysulfate Hydrate Cement Phase and Its Surface Reactions with Atmospheric Carbon Dioxide[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2013,96(11):3609-3616.
APA	Runcevski, Tomce,Wu, Chengyou,Yu, Hongfa,Yang, Bo,&Dinnebier, Robert E..(2013).Structural Characterization of a New Magnesium Oxysulfate Hydrate Cement Phase and Its Surface Reactions with Atmospheric Carbon Dioxide.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,96(11),3609-3616.
MLA	Runcevski, Tomce,et al."Structural Characterization of a New Magnesium Oxysulfate Hydrate Cement Phase and Its Surface Reactions with Atmospheric Carbon Dioxide".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 96.11(2013):3609-3616.