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Synthesis of Li 4 SiO 4 by a Modified Combustion Method
Author(s) -
Cruz Daniel,
Bulbulian Silvia
Publication year - 2005
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00262.x
Subject(s) - muffle furnace , combustion , lithium hydroxide , chemistry , molar ratio , molar , lithium (medication) , silicic acid , hydroxide , analytical chemistry (journal) , nuclear chemistry , inorganic chemistry , calcination , mineralogy , materials science , ion , ion exchange , organic chemistry , catalysis , medicine , dentistry , endocrinology
We report for the first time the synthesis of Li 4 SiO 4 by the modified combustion method, a rapid chemical process that takes 5 min for completion. This method uses nonoxidizer compounds instead of nitrate mixtures, which are not always commercially available.The effects of the following parameters on the production of Li 4 SiO 4 were studied: (1) different lithium hydroxide:silicic acid:urea (LiOH:H 2 SiO 3 :CH 4 N 2 O) molar ratios; (2) the presence of air flow in the furnace chamber; and (3) the furnace heating temperature. It was found that LiOH:H 2 SiO 3 :CH 4 N 2 O molar ratios 6:1:3 heated at 1100°C in the presence of additional air in the muffle chamber formed the best precursors to produce Li 4 SiO 4 .