Centre National De La Recherche Scientifique

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Universite Claude Bernard – Lyon1

Cpe Lyon Formation Continue Et Recherche

Chloé Thieuleux

Henry Ledon

Roger Guilard

Robert J Corriu

Catherine Reye

Ahmad Mehdi

Stéphane Brandes

Francois Martin

Stéphane Cadot

Elsje Quadrelli

A method of preparing a crystalline thin film having a formula MYincludes (1) preparing an MYamorphous film by atomic layer deposition on a surface of a substrate, and (2) annealing the amorphous MYfilm at 350&#xb0; C. or more to provide the crystalline MYfilm. The amorphous MYfilm is formed from at least one metal M precursor and at least one element Y precursor, wherein x is 1.5 to 3.1, M is tungsten or molybdenum, and Y is sulfur or selenium. Step (1) includes a) introducing a first metal M precursor or element Y precursor into a deposition chamber, b) purging with inert gas, c) introducing a second metal M precursor when the first precursor is element Y, or element Y precursor when the first precursor is metal M, d) purging with inert gas, e) repeating steps a) to d), and f) obtaining the amorphous MYfilm.

Method of forming a crystalline thin film having the formula MYusing an ALD-formed amorphous thin film having the formula MYas a precursor

The invention concerns a method for preparing organic-inorganic hybrid materials with controlled porosity and functionality comprising hydrolysis and condensation polymerization of a compound of formula (I): Z-R&#x2014;Si(OR)(OR')(OR&#x2033;), with an alkaline or alkaline-earth silicate in a mol ratio of (I)/(silicate)=1:9, in the presence of a non-ionic surfactant, to form a mesoporous silica represented by Z-R&#x2014;SiO9 SiO, whereon is then anchored an organic compound, represented by (&#x394;)N&#x2014;H, comprising a &#x2014;NH&#x2014; group capable of reacting with Z, to form a functionalized mesoporous silica represented by (&#x394;)N&#x2014;R&#x2014;SiO9 SiO, which is optionally complexed with a metallic cation to form an organometallic complex. The invention also concerns the use of these materials to separate gases.

Mesoporous organic-inorganic hybrid materials for separating gases

The invention concerns a method for preparing organic-inorganic hybrid materials with controlled porosity and functionality comprising hydrolysis and condensation polymerization of a compound of formula (I): Z-R&#x2014;Si(OR)(OR')(OR&#x2033;), with an alkaline or alkaline-earth silicate in a mol ratio of (I)/(silicate)=1:9, in the presence of a non-ionic surfactant, to form a mesoporous silica represented by Z-R&#x2014;SiO9 SiO, whereon is then anchored an organic compound, represented by (&#x394;)N&#x2014;H, comprising a &#x2014;NH&#x2014; group capable of reacting with Z, to form a functionalized mesoporous silica represented by (&#x394;)N&#x2014;R&#x2014;SiO9 SiOwhich is optionally complexed with a metallic cation to form an organometallic complex. The invention also concerns the use of these materials to separate gases.

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Calais, France

Chloé Thieuleux