摘要:
A method for producing nano-carbon materials, having a step wherein a starting material comprising one or more kinds of compounds selected from the group consisting saturated hydrocarbons, unsaturated hydrocarbons, saturated cyclic hydrocarbons, and alcohols whose atomic ratio of the component carbon to the component oxygen is more than 2.0 and a catalyst are together treated at a temperature in a range of from 100 to 800 °C while being compressed at a pressure in a range of from 0.2 to 60 MPa, where said starting material is converted into a supercritical fluid or a subcritical fluid while said supercritical fluid or said subcritical fluid being contacted with said catalyst, or a step wherein said starting material, said catalyst and a supplementary material capable of functioning as a reaction promotion medium are together treated at a temperature in a range of from 100 to 800 °C while being compressed at a pressure in a range of from 0.2 to 60 MPa, where at least said supplementary material is converted into a supercritical fluid or a subcritical fluid and said starting material is contacted with said supercritical fluid or said subcritical fluid formed from said supplementary material while being contacted with said catalyst.
摘要:
Disclosed herein is a process for producing a nano carbon material, which comprises the steps of mixing at least one raw material selected from the group consisting of linear saturated hydrocarbons, linear unsaturated hydrocarbons, cyclic saturated hydrocarbons, aromatic hydrocarbons, alcohols and ethers with at least one oxygen-element-containing substance selected from the group consisting of methanol, ethanol, acetone, acetaldehyde, ethylene oxide, ethylene glycol, formaldehyde, water, hydrogen peroxide, oxygen and nitrous oxide; and causing the mixture to coexist with a supercritical fluid or subcritical fluid within a temperature range of from 300 to 800°C under a pressure of from 2 to 60 MPa. According to this process, nano carbon materials typified by carbon nanotubes, diamond and fullerene are cheaply produced.
摘要:
The electrode material for a lithium secondary battery according to the present invention includes particles of a solid state alloy having silicon as a main component, wherein the particles of the solid state alloy have a microcrystal or amorphous material including an element other than silicon, dispersed in microcrystalline silicon or amorphized silicon. The solid state alloy preferably contains a pure metal or a solid solution. The composition of the alloy preferably has an element composition in which the alloy is completely mixed in a melted liquid state, whereby the alloy has a single phase in a melted liquid state without presence of two or more phases. The element composition can be determined by the kind of elements constituting the alloy and an atomic ratio of the elements.
摘要:
Disclosed herein is a process for producing a nano carbon material, which comprises the steps of mixing at least one raw material selected from the group consisting of linear saturated hydrocarbons, linear unsaturated hydrocarbons, cyclic saturated hydrocarbons, aromatic hydrocarbons, alcohols and ethers with at least one oxygen-element-containing substance selected from the group consisting of methanol, ethanol, acetone, acetaldehyde, ethylene oxide, ethylene glycol, formaldehyde, water, hydrogen peroxide, oxygen and nitrous oxide; and causing the mixture to coexist with a supercritical fluid or subcritical fluid within a temperature range of from 300 to 800°C under a pressure of from 2 to 60 MPa. According to this process, nano carbon materials typified by carbon nanotubes, diamond and fullerene are cheaply produced.
摘要:
A method for producing nano-carbon materials, having a step wherein a starting material comprising one or more kinds of compounds selected from the group consisting saturated hydrocarbons, unsaturated hydrocarbons, saturated cyclic hydrocarbons, and alcohols whose atomic ratio of the component carbon to the component oxygen is more than 2.0 and a catalyst are together treated at a temperature in a range of from 100 to 800 °C while being compressed at a pressure in a range of from 0.2 to 60 MPa, where said starting material is converted into a supercritical fluid or a subcritical fluid while said supercritical fluid or said subcritical fluid being contacted with said catalyst, or a step wherein said starting material, said catalyst and a supplementary material capable of functioning as a reaction promotion medium are together treated at a temperature in a range of from 100 to 800 °C while being compressed at a pressure in a range of from 0.2 to 60 MPa, where at least said supplementary material is converted into a supercritical fluid or a subcritical fluid and said starting material is contacted with said supercritical fluid or said subcritical fluid formed from said supplementary material while being contacted with said catalyst.