摘要:
By a process for producing a porous carbon material from a plant-derived material as a raw material, said process including carbonizing the plant-derived material at 800° C. to 1,400° C. and then applying a treatment with an acid or alkali, a porous carbon material having a value of specific surface area of at least 10 m2/g as measured by the nitrogen BET method, a silicon content of at most 1 wt % and a pore volume of at least 0.1 cm3/g is obtainable from a plant-derived material, which has a silicon content of at least 10 wt %, as a raw material. Also provided is a process for producing a porous carbon material equipped with excellent functionality so that the porous carbon material can be used, for example, as an anode material for batteries, an adsorbent, masks, adsorbing sheets, or carriers.
摘要:
By a process for producing a porous carbon material from a plant-derived material as a raw material, said process including carbonizing the plant-derived material at 800° C. to 1,400° C. and then applying a treatment with an acid or alkali, a porous carbon material having a value of specific surface area of at least 10 m2/g as measured by the nitrogen BET method, a silicon content of at most 1 wt % and a pore volume of at least 0.1 cm3/g is obtainable from a plant-derived material, which has a silicon content of at least 10 wt %, as a raw material. Also provided is a process for producing a porous carbon material equipped with excellent functionality so that the porous carbon material can be used, for example, as an anode material for batteries, an adsorbent, masks, adsorbing sheets, or carriers.
摘要:
Provided is an electromagnetic wave absorber, including a base material and a porous carbon material containing, as a raw material, a plant-based material having a silicon content of 5% by mass or more, in which the porous carbon material has a specific surface area value as measured by the nitrogen BET method of 400 m2/g or more, a silicon content of 1% by mass or less, a pore volume as measured by the BJH method of 0.2 cm3/g or more, and a pore volume as measured by the MP method of 0.2 cm3/g or more, or a total pore volume of pores each having a diameter in the range from 1×10−9 m to 5×10−7 m as measured by the Non Localized Density Functional Theory of 1.0 cm3/g or more.
摘要:
A light emitting element, includes: a luminescent material which is obtained from a plant-derived material as a raw material, and which contains therein a silicon oxide containing therein silicon having a content rate of 40 wt. % or more, and oxygen having a content rate of 40 wt. % or more as a principal component; a fluorescent substance adsorbed on a surface of the luminescent material; and an energy source for exciting the luminescent material and the fluorescent substance.
摘要:
Provided is a porous carbon material composite formed of a porous carbon material and a functional material and equipped with high functionality. A porous carbon material composite is formed of (A) a porous carbon material obtainable from a plant-derived material having a silicon (Si) content of 5 wt % or higher as a raw material, said porous carbon material having a silicon (Si) content of 1 wt % or lower, and (B) a functional material adhered on the porous carbon material, and has a specific surface area of 10 m2/g or greater as determined by the nitrogen BET method and a pore volume of 0.1 cm3/g or greater as determined by the BJH method and MP method.
摘要:
A light emitting element, includes: a luminescent material which is obtained from a plant-derived material as a raw material, and which contains therein a silicon oxide containing therein silicon having a content rate of 40 wt. % or more, and oxygen having a content rate of 40 wt. % or more as a principal component; a fluorescent substance adsorbed on a surface of the luminescent material; and an energy source for exciting the luminescent material and the fluorescent substance.
摘要:
Provided is a drug sustained-release agent including a carbon material (porous carbon material) which has an inverse opal structure. The drug sustained-release agent includes a porous carbon material which has spherical pores having an average diameter of 1×10−9 to 1×10−5 m and arrayed three-dimensionally and which has a surface area of 3×102 m2/g. Or, the drug sustained-release agent includes a porous carbon material in which pores are arrayed in an arrangement corresponding to a crystal structure on a macroscopic basis. Or, the drug sustained-release agent includes a porous carbon material in which pores are arrayed at a surface thereof in an arrangement corresponding to the (111) plane orientation of a face-centered cubic structure on a macroscopic basis.
摘要:
A resin composition that has high mechanical strength properties, has superior chemical characteristics such as chemical resistance and heat resistance, has high degree of freedom of product design, and has a structure considering the impact on environment is provided at low cost. The resin composition composed of a polyamide resin contains a cotton fiber as a natural fiber. The additive amount of the cotton fiber is preferably 1 wt % to 25 wt % both inclusive. The polyamide resin is polyamide 11 using castor oil as a raw material of plant origin. The average fiber diameter of the cotton fiber is 100 μm or less. The polyamide resin and the cotton fiber are melted and kneaded, and then hot-formed, and thereby a shaped article containing a plant fiber can be fabricated. In addition to the cotton fiber, a plant fiber such as a hemp fiber, a bamboo fiber, and wood powder and a biofiber such as a silk fiber may be applied.
摘要:
Disclosed is an adsorbent including a porous carbon material which is produced from a plant-derived material having a silicon (Si) content of not less than 5 wt. % and which has a value of specific surface area determined by the nitrogen BET method of not less than 10 m2/g, a silicon content of not more than 1 wt. %, and pore volumes determined by the BJH method and the MP method of not less than 0.1 cm3/g. The adsorbent adsorbs indole, uric acid, adenosine, α-amylase, 3-methylindole, tryptophan, indicant, theophylline, inosine 5-monophosphate disodium salt, adenosine 5-triphosphate disodium salt, a fatty acid, a coloring matter, hydrophobic molecules, or an organic matter (for example, organic molecules or a protein) having a number average molecular weight of not less than 1×102 and less than 5×102.
摘要:
A charging circuit includes a generator, a step-down circuit for reducing an output voltage of the generator to a predetermined voltage, a current controller for controlling a charging current that is supplied from the step-down circuit to a secondary battery, based on an amount of power generated by the generator, a mode selector for selecting charging modes, and a monitor for monitoring an amount of stored electricity. The step-down circuit receives an output of the generator, in charging, at a high voltage and a small current and is used to charge the battery at a low voltage and a large current.