The invention relates to a gelled aqueous polymer composition for forming, by means of drying then pyrolysis, a monolithic porous carbon, to a pyrolysed carbonated composition produced by the drying, followed by the pyrolysis, of said gelled composition, to a porous carbon electrode for a supercapacitor comprising said pyrolysed composition, and to methods for producing said respectively gelled and pyrolysed compositions. A gelled composition according to the invention, produced from the polycondensation of polyhydroxybenzene(s) and hexymethylenetetramine, is such that the hexymethylenetetramine comprised therein represents a mass fraction of between 7% and 15% inclusive. Said gelled composition is produced by a) polycondensation in an aqueous solvent of the polyhydroxybenzene(s) and hexymethylenetetramine, followed by b) gelling by heating of said polycondensate.

Activated carbon monolith catalyst including a finished self-supporting activated carbon monolith having at least one passage therethrough, and including a supporting matrix and substantially discontinuous activated carbon particles dispersed throughout the supporting matrix and at least one catalyst precursor on the finished self-supporting activated carbon monolith. A method for making, and a method for use, of such an activated carbon monolith catalyst in catalytic chemical reactions.

Disclosed here is a method for making an architected three-dimensional aerogel, comprising providing a photoresin comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and a precursor for graphene, metal oxide or metal chalcogenide; curing the photoresin using projection microstereolithography layer-by-layer to produce a wet gel having a pre-designed three dimensional structure; drying the wet gel to produce a dry gel; and pyrolyzing the dry gel to produce an architected three-dimensional aerogel. Also disclosure is a photoresin for projection microstereolithography, comprising a solvent, a photoinitiator, a crosslinkable polymer precursor, and graphene oxide.

Activated carbon monolith catalyst including a finished self-supporting activated carbon monolith having at least one passage therethrough, and including a supporting matrix and substantially discontinuous activated carbon particles dispersed throughout the supporting matrix and at least one catalyst precursor on the finished self-supporting activated carbon monolith. A method for making, and a method for use, of such an activated carbon monolith catalyst in catalytic chemical reactions.

The present invention provides a porous metal-containing carbon-based material that is stable at high temperatures under aqueous conditions. The porous metal-containing carbon-based materials are particularly useful in catalytic applications. Also provided, are methods for making and using porous shaped metal-carbon products prepared from these materials.

The invention concerns high-performance adsorbents based on activated carbon of high meso- and macroporosity which are present in the form of discrete grains of activated carbon, wherein: at least 55% of the total pore volume of the high-performance adsorbents are formed by pores (i.e. meso- and macropores) having pore diameters of more than 20 , the high-performance adsorbents have a measure of central tendency pore diameter of more than 25 , and the high-performance adsorbents have a BET surface area of at least 1250 m.sup.2/g. These high-performance adsorbents are obtainable by a novel process comprising specific two-stage activation, and have, in addition to the aforementioned properties, an excellent abrasion and bursting resistance, so that they are useful for a multiplicity of different applications.

A method of aerobic depolymerization of fiber-reinforced polymer (FRP) composites using sustainable reagents and conditions. A cured matrix is digested into soluble monomers and oligomers by catalytic aerobic oxidation. Carbon fibers are removed for re-use, then the remaining material is treated and valuable monomers are isolated. The isolated monomers can be converted back into resin precursors for re-use. The method solves the problem created because the typically irreversible cure reaction impedes recycling and re-use of FRP composites.

Activated carbon monolith catalyst including a finished self-supporting activated carbon monolith having at least one passage therethrough, and including a supporting matrix and substantially discontinuous activated carbon particles dispersed throughout the supporting matrix and at least one catalyst precursor on the finished self-supporting activated carbon monolith. A method for making, and a method for use, of such an activated carbon monolith catalyst in catalytic chemical reactions.

A carbon plate including the following components in weight percentage: 31.5% to 91% of carbon powder, 3% to 25% of resin, 3% to 30% of plant fiber, 0.5% to 2.5% of fire retardant, 0.5% to 3% of dispersing agent, 1% to 3% of zeolite powder, and 1% to 5% of tea stem residue. A manufacturing process for the carbon plate including: mixing raw materials according to a proportion, placing the raw materials into a stirrer, and stirring the raw materials to uniformity; feeding a material obtained; performing heating; maintaining the pressure.

The present invention provides a porous metal-containing carbon-based material that is stable at high temperatures under aqueous conditions. The porous metal-containing carbon-based materials are particularly useful in catalytic applications. Also provided, are methods for making and using porous shaped metal-carbon products prepared from these materials.