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Magnesium Hydroxide Fluorides – New Materials with Adjustable Composition and Properties
Author(s) -
Scholz Gudrun,
Stosiek Christoph,
Feist Michael,
Kemnitz Erhard
Publication year - 2012
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201200108
Subject(s) - stoichiometry , chemistry , hydroxide , magnesium , nanoscopic scale , aqueous solution , catalysis , inorganic chemistry , sol gel , base (topology) , carbon fibers , chemical engineering , nanotechnology , organic chemistry , materials science , mathematical analysis , mathematics , composite number , engineering , composite material
Fluorolytic sol–gel synthesis with aqueous HF results in highly disordered, nanoscopic magnesium hydroxide fluorides with very large BET surface areas, low carbon contents, and adjustable stoichiometries. MgF x (OH) (2– x ) materials that can withstand high temperatures can be synthesized in a very wide stoichiometric range by fluorolytic sol–gel synthesis (0 ≤ x ≤ 2). Large surface areas and a very wide range of tunable acid–base properties are characteristic for these compounds, which opens an exciting possibility of their application not only as new catalysts but also as support materials.