초록 ▼

The disclosed invention relates to mesoporous carbon which is useful as a catalyst or adsorbent for large organic molecules. Said carbon composition comprises a regular assembly of carbon particles thus allowing an accurate pre-determination of the size and size disbtribution of the pores and creati

The disclosed invention relates to mesoporous carbon which is useful as a catalyst or adsorbent for large organic molecules. Said carbon composition comprises a regular assembly of carbon particles thus allowing an accurate pre-determination of the size and size disbtribution of the pores and creating less tortuous pathways of interconnected pores. A method of preparation of said mesoporous carbon has been disclosed.

대표청구항 ▼

An adsorbant carbon comprising a form-stable assembly of a family of contiguous carbon particles wherein the surfaces of adjacent contiguous particles define interstitial pores characterised in that (a) the maximum diameters of at least 90% by number of the particles of the family lie in the range 8

An adsorbant carbon comprising a form-stable assembly of a family of contiguous carbon particles wherein the surfaces of adjacent contiguous particles define interstitial pores characterised in that (a) the maximum diameters of at least 90% by number of the particles of the family lie in the range 8 to 3000 nm, (b) the root mean square deviation of the maximum diameters of the particles of the family is less than 15% and Ser. No. 336,396 - Everett et al. (c) in at least one section of the adsorbant carbon, particles are cubic or hexagonal close packed to an extent that the volume of interstitial pores in said section is from 18 to 40% of the volume of said section. A method for making adsorbant carbon characterised in that (a) a colloidal dispersion of a family of spheroidal particles of carbonisable organic polymer is formed in a liquid wherein the maximum diameters of at least 90% by number of the particles of the family lie in the range 10 to 3500 nm and the root mean square deviation of those maximum diameters within a family is less than 15%. (b) the particles are caused to deposit from the liquid by a packing force exerted on them, (c) the deposited particles are heated to a temperature which is below the softening point of the polymer but which is high enough to cause at least partial degradation of the polymer and thereby create a form-stable assembly of particles and (d) the form-stable assembly is heated to ensure complete carbonisation of the polymer.