Monolithic porous magnesium silicide. Issue 27 (26th April 2017)

• Record Type: Journal Article
• Authors: Hayati-Roodbari, N.; Berger, R. J. F.; Bernardi, J.; Kinge, S.; Hüsing, N.; Elsaesser, M. S.
• Is Part Of: Dalton transactions. Volume 46:Issue 27(2017)
• Page Start: 8855
• Page End: 8860
• Publication Date: 2017-04-26
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7dt00571g
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : Macroporous magnesium silicide monoliths were prepared by a two-step magnesiothermic reaction starting from hierarchically structured silica with silicon as an intermediate step. Abstract : Macroporous magnesium silicide monoliths were successfully prepared by a two-step synthesis procedure. The reaction of gaseous magnesium vapor with macro-/mesoporous silicon, which was generated from hierarchically organized meso-/macroporous silica by a magnesiothermic reduction reaction, resulted in monolithic magnesium silicide with a cellular, open macroporous structure. By adjusting the reaction conditions, such as experimental set-up, temperature and time, challenges namely loss of porosity or phase purity of Mg2 Si were addressed and monolithic magnesium silicide with a cellular network builtup was obtained.