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Large-scale synthesis of MgCl2·6NH3 as an ammonia storage material / Hongliang Zhu in Industrial & engineering chemistry research, Vol. 48 N° 11 (Juin 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5317–5320 Titre : Large-scale synthesis of MgCl2·6NH3 as an ammonia storage material Type de document : texte imprimé Auteurs : Hongliang Zhu, Auteur ; Kuihong Yao, Auteur Année de publication : 2009 Article en page(s) : pp. 5317–5320 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Magnesium  chloride  hexammoniate  Ammonia  X-ray  diffraction  Fourier  transform  infrared  spectroscopy  Thermogravimetry Résumé : This Article reveals that magnesium chloride hexammoniate (MgCl2·6NH3) can be prepared by the reaction between magnesium silicide (Mg2Si) and ammonium chloride (NH4Cl) in liquid ammonia, which was developed by Komatsu Electronic Metals Corp. to produce silane (SiH4). The MgCl2·6NH3 product was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetry (TGA). XRD study showed that the solid product prepared by the experiment using a Mg2Si/NH4Cl mass ratio of 1:2.8 was phase-pure and highly crystalline MgCl2·6NH3. The FTIR spectrum exhibited the characteristic bands of coordinated ammonia molecules. In addition, the ammonia desorption behavior of the product were investigated by TGA, and its desorption reactions are given in this Article. In summary, this Article provides a new large-scale and low-cost synthesis method to produce MgCl2·6NH3, which has been emerging as an interesting functional material. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900177q [article] Large-scale synthesis of MgCl2·6NH3 as an ammonia storage material [texte imprimé] / Hongliang Zhu, Auteur ; Kuihong Yao, Auteur . - 2009 . - pp. 5317–5320. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 11 (Juin 2009) . - pp. 5317–5320 Mots-clés : Magnesium  chloride  hexammoniate  Ammonia  X-ray  diffraction  Fourier  transform  infrared  spectroscopy  Thermogravimetry Résumé : This Article reveals that magnesium chloride hexammoniate (MgCl2·6NH3) can be prepared by the reaction between magnesium silicide (Mg2Si) and ammonium chloride (NH4Cl) in liquid ammonia, which was developed by Komatsu Electronic Metals Corp. to produce silane (SiH4). The MgCl2·6NH3 product was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetry (TGA). XRD study showed that the solid product prepared by the experiment using a Mg2Si/NH4Cl mass ratio of 1:2.8 was phase-pure and highly crystalline MgCl2·6NH3. The FTIR spectrum exhibited the characteristic bands of coordinated ammonia molecules. In addition, the ammonia desorption behavior of the product were investigated by TGA, and its desorption reactions are given in this Article. In summary, this Article provides a new large-scale and low-cost synthesis method to produce MgCl2·6NH3, which has been emerging as an interesting functional material. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie900177q