US 2019/0127226 A1 · PRODUCTION OF A POROUS CARBON PRODUCT

Abstract

A process for the production of a porous carbon product. The process includes the steps of (a) providing a substrate surface; (b) depositing silicon dioxide as a layer on the substrate surface, thereby obtaining a porous silicon di-oxide material; (c) contacting the porous silicon dioxide material on the substrate surface with a first carbon source thereby obtaining a first precursor comprising the porous silicon dioxide material and the first car-bon source; (d) heating the first precursor thereby obtaining a second precursor comprising the porous silicon dioxide material and carbon; and (e) at least partially removing the silicon dioxide in the second precursor, thereby obtaining the porous carbon product. Also disclosed are a porous carbon product and a device that uses a porous carbon product.

Claims20

Dependent claims

A process for the production of a porous carbon product comprising the process steps of:

(a) providing a substrate surface;
(b) depositing silicon dioxide as a layer on the substrate surface, thereby obtaining a porous silicon dioxide material;
(c) contacting the porous silicon dioxide material on the substrate surface with a first carbon source thereby obtaining a first precursor comprising the porous silicon dioxide material and the first carbon source;
(d) heating the first precursor thereby obtaining a second precursor comprising the porous silicon dioxide material and carbon;
and
(e) at least partially removing the silicon dioxide in the second precursor, thereby obtaining the porous carbon product.

3 more elements

A porous carbon product satisfying one or more of the following criteria:

(A) a material density in the range from 1.5 to 2.3 g/cm3;
(B) a bulk density in the range from 0.2 to 1.2 g/cm3;
(C) a porosity in the range from 0.4 to 0.9;
(D) a total specific surface area according to BET-SSA in the range of from 20 to 800 m2/g;
(E) a specific surface area determined by BET-BJH of pores having a pore diameter of less than 2 nm in the range from 0 to 400 m2/g;
(F) a pore size distribution determined by mercury intrusion porosimetry between 10 and 10,000 nm being characterized by
a. a D10 in the range from 20 to 100 nm,
b. a D50 in the range from 50 to 1,000 nm, and
c. a D90 in the range from 2,000 to 9,000 nm;
(G) a cumulative pore volume in the range from 0.2 to 2.50 cm3/g for pores having a pore diameter in the range from 10 to 100 nm;
(H) a cumulative pore volume in the range from 0.2 to 2.50 cm3/g for pores having a pore diameter of more than 100 nm and up to 1,000 nm;
and
(I) a cumulative pore volume in the range from 0.01 to 1.00 cm3/g for pores having a pore diameter of more than 1,000 nm and up to 10,000 nm.

10 more elements

Dependencies are inferred from the claim text.

Production of a porous carbon product

Life of this patent

Production of a porous carbon product

Life of this patent

Abstract

Claims20