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Synthesis of New RuO 2 @SiO 2 Composite Nanomaterials and their Application as Catalytic Filters for Selective Gas Detection
Author(s) -
Jansat S.,
Pelzer K.,
GarcíaAntón J.,
Raucoules R.,
Philippot K.,
Maisonnat A.,
Chaudret B.,
Guari Y.,
Mehdi A.,
Reyé C.,
Corriu R. J. P.
Publication year - 2007
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200700519
Subject(s) - materials science , ruthenium , nanoparticle , catalysis , propane , nanomaterials , chemical engineering , carbon monoxide , sorption , hydrothermal circulation , inorganic chemistry , nanotechnology , organic chemistry , chemistry , adsorption , engineering
RuO 2 @SiO 2 nanomaterials are prepared using hybrid mesostructured silica (EtO) 2 P(O)(CH 2 ) 3 SiO 1.5 / x SiO 2 ( x = 9, 16) by anchoring the metal precursor [Ru(COD)(COT)] (COD is 1,3‐cyclooctadiene, COT is 1,3,5‐cyclooctatriene) inside the pores of the organized silica matrix through the phosphonate moieties. Following this task, the nanoparticles are fabricated by i) decomposing the metal precursor with hydrogen at room temperature in tetrahydrofuran to achieve ruthenium nanoparticles and ii) thermally treating the ruthenium particles in silica at 450 °C in air to fabricate RuO 2 . The materials containing Ru and RuO 2 nanoparticles are characterized by elemental analysis, transmission electron microscopy (TEM), X‐ray diffraction (XRD), nitrogen sorption measurements, and 31 P and 13 C NMR. The obtained RuO 2 @SiO 2 nanomaterials are evaluated as catalytic filters when deposited onto gas sensors for the preferential detection of propane in the multicomponent gas mixture propane/carbon monoxide/nitrogen dioxide.