摘要:
The present invention relates to a method for storing hydrogen in a macroporous monolithic material by the heterogeneous nucleation of a metal hydride, to the composite material for storing hydrogen directly obtained by said method, to the use of said material for the production of dihydrogen, and to a method for producing dihydrogen using such a composite material.
摘要:
The present invention relates to carbon or ceramic monolithic materials with an M2 (macroporous/microporous) hierarchised porous structure, to a method for preparing said materials using a macro/meso/microporous silica cavity, as well as to the use of said materials, in particular for the production of hydrogen purifiers, supercapacitors or electrodes, or else for carrying out catalysed chemical reactions in a heterogeneous phase.
摘要:
The invention relates to an inorganic material with a hierarchical structure and to a sol-gel method for the preparation thereof. The material is monolithic and is comprised of an inorganic matrix. The matrix consists of a metal oxide polymer and comprises macro-pores, meso-pores and micro-pores, said pores being interconnected. The preparation method consists in preparing an emulsion by introducing an oily phase into an aqueous solution consisting of a surfactant and a metal alcoxide; the reaction mixture is left to rest until condensation of the precursor occurs; the mixture is subsequently dried and calcinated.
摘要:
The invention relates to a material in the form of a cellular solid monolith consisting of an inorganic oxide polymer. Said monolith comprises macropores which have an average size dA of 4 µm to 50 µm, mesopores that have an average size dE of 20 to 30 Å, and micropores which have an average size dI of 5 à 10 Å, said pores being interconnected. The inorganic oxide polymer has organic groups R of formula -(CH2)n-R1, wherein 0=n=5, and R1 is selected from among a thiol group, a pyrrole group, an amino group having one or more optional, optionally substituted alkyl, alkylamino, or aryl substituents, an alkyl group, or a phenyl group optionally having an alkyl-type substituent R2. The disclosed material can be used as a substrate for a metal catalyst and for decontaminating liquid or gaseous media.