Patent classifications
C01B32/342
Method for making multiporous carbon materials by using bio-oils
The invention provides a method for making multiporous carbon material from a bio-oil produced by a biomass thermochemical process. The bio-oil is blended with a resin and a Zinc Oxide (ZnO) template as a major component of a precursor. The pore sizes of the carbon material made by the invention comprise mesopores and micropores to form the multiporous carbon material. The main production steps include: (1) mixing the precursor with a crusher, (2) packing the precursor, (3) heating for carbonization: holding 350 C. for 1 hour then holding 900 C. for 2 hours, and (4) washing the ZnO with hydrochloric acid by adjusting the pH value to less than 1.
Method for making multiporous carbon materials by using bio-oils
The invention provides a method for making multiporous carbon material from a bio-oil produced by a biomass thermochemical process. The bio-oil is blended with a resin and a Zinc Oxide (ZnO) template as a major component of a precursor. The pore sizes of the carbon material made by the invention comprise mesopores and micropores to form the multiporous carbon material. The main production steps include: (1) mixing the precursor with a crusher, (2) packing the precursor, (3) heating for carbonization: holding 350 C. for 1 hour then holding 900 C. for 2 hours, and (4) washing the ZnO with hydrochloric acid by adjusting the pH value to less than 1.
METHOD FOR MANUFACTURING ACTIVATED CARBON FOR ELECTRODE MATERIAL
Described herein is a method for manufacturing an activated carbon for an electrode material, the method including a step of heat-treating an activated carbon material in an atmosphere containing a chlorine-containing gas, wherein the content of metal impurities contained in the activated carbon material after the heat treating step is 0.1 to 20 ppm.
METHOD FOR FURTHER PROCESSING OF CARBON RAW MATERIAL
Process for further use of a water-containing carbon raw material comprising the treatment of the carbon raw material with carbon dioxide or water vapor or a mixture thereof at elevated temperature and the admixing of the thus obtained carbon material with an acid.
METHOD FOR FURTHER PROCESSING OF CARBON RAW MATERIAL
Process for further use of a water-containing carbon raw material comprising the treatment of the carbon raw material with carbon dioxide or water vapor or a mixture thereof at elevated temperature and the admixing of the thus obtained carbon material with an acid.
SUPPORT FOR POLYMER ELECTROLYTE FUEL CELL CATALYST, METHOD OF PRODUCING SUPPORT FOR POLYMER ELECTROLYTE FUEL CELL CATALYST, CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELL, AND FUEL CELL
A support for a polymer electrolyte fuel cell catalyst satisfying the following requirements (A), (B), (C), and (D), and a producing method thereof, as well as a catalyst layer for a polymer electrolyte fuel cell and a fuel cell:
(A) a specific surface area according to a BET analysis of a nitrogen adsorption isotherm is from 450 to 1500 m.sup.2/g.
(B) a nitrogen adsorption and desorption isotherm forms a hysteresis loop in a range of relative pressure P/P.sub.0 of more than 0.47 but not more than 0.90, and a hysteresis loop area S.sub.0.47-0.9 is from 1 to 35 mL/g;
(C) a relative pressure P.sub.close/P.sub.0 at which the hysteresis loop closes is more than 0.47 but not more than 0.70; and
(D) a half-width of a G band detected by Raman spectrometry in a range of from 1500 to 1700 cm.sup.1 is from 45 to 75 cm.sup.1.
Method for the production of low ash activated charcoal
The present invention discloses a method for the production of low ash activated charcoal from a carbon-containing raw material such as peat, in which method a damp mass of raw material is subjected to a hydrothermal carbonization process, in which the mass is heated to a temperature of 150 to 350 C and the process pressure increased to 10 to 40 bar, and the carbonized material obtained from the hydrothermal carbonization process is activated by heating it to a temperature above 400 C. The present invention further relates to the use of carbonized material obtained from the hydrothermal carbonization process for the production of activated charcoal.
Heteroatom-doped porous carbons for clean energy applications and methods for their synthesis
Methods for a facile, template free and one-step synthesis of nanoporous carbons by using a heterocyclic aromatic organic compound as a single source precursor of both carbon and nitrogen are described. The heterocyclic aromatic organic compound contains nitrogen in pyrrolic and/or pyridinic positions and is chemically activated with NaOH, KOH or ZnCl.sub.2 at high temperatures in a solid state mixture as a synthesis protocol to promote fine micropores during carbonization. Nanoporous carbons synthesized by these methods that have superior gas sorption/storage and energy storage properties are also described. The nanoporous carbons are useful as carbon sequestration agents and supercapacitors.
Heteroatom-doped porous carbons for clean energy applications and methods for their synthesis
Methods for a facile, template free and one-step synthesis of nanoporous carbons by using a heterocyclic aromatic organic compound as a single source precursor of both carbon and nitrogen are described. The heterocyclic aromatic organic compound contains nitrogen in pyrrolic and/or pyridinic positions and is chemically activated with NaOH, KOH or ZnCl.sub.2 at high temperatures in a solid state mixture as a synthesis protocol to promote fine micropores during carbonization. Nanoporous carbons synthesized by these methods that have superior gas sorption/storage and energy storage properties are also described. The nanoporous carbons are useful as carbon sequestration agents and supercapacitors.
Lithium ion-based internal hybrid electrochemical energy storage cell
Provided is an internal hybrid electrochemical cell comprising: (A) a pseudocapacitance cathode comprising a cathode active material that contains a conductive carbon material and a porphyrin compound, wherein the porphyrin compound is bonded to or supported by the carbon material to form a redox pair for pseudocapacitance, wherein the carbon material is selected from activated carbon, activated carbon black, expanded graphite flakes, exfoliated graphite worms, carbon nanotube, carbon nanofiber, carbon fiber, a combination thereof; (B) a battery-like anode comprising lithium metal, lithium metal alloy, or a prelithiated anode active material (e.g. prelithiated Si, SiO, Sn, SnO.sub.2, etc.), and (C) a lithium-containing electrolyte in physical contact with the anode and the cathode; wherein the cathode active material has a specific surface area no less than 100 m.sup.2/g which is in direct physical contact with the electrolyte.