A method of forming a carbon material from the stalk or roots of a plant of the Nicotiana species is provided herein, wherein the method includes i) receiving a tobacco material comprising at least one of a stalk material and a root material of a harvested plant of the Nicotiana species; and ii) pyrolyzing the tobacco material to remove volatiles and to form a tobacco-derived carbon material. Optionally, the method can further include activating the tobacco-derived carbon material. The tobacco-derived carbon material can be incorporated into a tobacco product. A carbon material derived from pyrolyzing a tobacco material in the form of at least one of a tobacco stalk material and a tobacco root material of a harvested plant of the Nicotiana species is also provided herein.

Provided is a carbon material, which can increase the capacitance in an electrical storage device. Provided is a carbon material including a carbon material that has a graphene laminated structure, where the carbon material has a BET specific surface area of 240 m.sup.2/g or more, and has a powder density of 0.5 g/cc or more when 0.1 g of the carbon material is put in a container with a cross-sectional area of 3.14 cm.sup.2 and compressed at a pressure of 16 kN.

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 ΔS.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.

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 ΔS.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.

A bio-oil light fraction-based bread-shaped porous activated carbon, a method for preparing the same and use thereof are provided. A light fraction prepared by fast pyrolysis of a biomass coupled with molecular distillation is selected as a precursor; an activator is directly mixed with the light fraction and stirred to obtain a homogeneous liquid; then, the homogeneous liquid is subjected to one-step carbonization and activation at a two-stage temperature in an inert atmosphere; after the activation, the obtained solid was washed and filtered, the activator reaction products and impurities are removed, and then dried to obtain the activated carbon used as an electrode carbon material of a supercapacitor. The method fully utilizes the rich micromolecule compounds such as water, acids, ketones, aldehydes, monophenols and the like in the obtained light fraction, and the micromolecule compounds and water can interact with the activator.

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.

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.

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.

A process for forming a pure carbon product has the steps of soaking charcoal with hydrochloric acid to remove solids from the charcoal, removing the hydrochloric acid from the soaked charcoal, drying the charcoal, grinding the dried charcoal into a fine powder, mixing water with the fine powder, washing the fine powder, removing the water so as to from a charcoal slurry, and drying the charcoal slurry so as to form the pure carbon powder. The charcoal slurry has a skim on the surface thereof. The skim is removed.

A process for forming a pure carbon product has the steps of soaking charcoal with hydrochloric acid to remove solids from the charcoal, removing the hydrochloric acid from the soaked charcoal, drying the charcoal, grinding the dried charcoal into a fine powder, mixing water with the fine powder, washing the fine powder, removing the water so as to from a charcoal slurry, and drying the charcoal slurry so as to form the pure carbon powder. The charcoal slurry has a skim on the surface thereof. The skim is removed.