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110results about "Carbon electrodes" patented technology
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Methods and apparatus of electrochemical production of carbon monoxide, and uses thereof
The present invention relates to an electrolytic process, methods and apparatus for the preparation of carbon monoxide and in particular to electrolysis of molten carbonates to yield carbon monoxide which may be used for chemical storage of electrical energy and further as chemical feedstock for other organic products.
Owner:YEDA RES & DEV CO LTD
Graphene based electrodes for electrochemical reactions, and electrooxidation process for the removal of contaminants from liquids using said electrodes
InactiveUS20120031852A1Electrolytic capacitorsConductive materialElectrochemical responseNanostructured carbon
An electrode is described completely made of graphenes or containing high amounts of these compounds in mixture with nanostructured or non-nanostructured carbon-based materials. An electrooxidation process for the removal of contaminants from liquids, and a reactor for performing the process, based on the use of said electrodes, are also described.
Owner:ENVITECH
Electrolytic Generation of Manganese (III) Ions in Strong Sulfuric Acid
An electrolytic cell and a method of electrochemical oxidation of manganese(II) ions to manganese(III) ions in the electrolytic cell are described. The electrolytic cell comprises (1) an electrolyte solution of manganese(II) ions in a solution of at least one acid; (2) a cathode immersed in the electrolyte solution; and (3) an anode immersed in the electrolyte solution and spaced apart from the cathode. Various anode materials are described including vitreous carbon, reticulated vitreous carbon, woven carbon fibers, lead and lead alloy. Once the electrolyte is oxidized to form a metastable complex of manganese(III) ions, a platable plastic may be contacted with the metastable complex to etch the platable plastic. In addition, a pretreatment step may also be performed on the platable plastic prior to contacting the platable plastic with the metastable complex to condition the plastic surface.
Owner:MACDERMID ACUMEN INC
Electrolytic apparatus for producing fluorine or nitrogen trifluoride
InactiveUS20070215460A1Avoid it happening againSuppression amountCellsMachining electric circuitsHigh current densityHydrogen fluoride
It is a task of the present invention to provide an electrolytic apparatus for producing fluorine or nitrogen trifluoride by electrolyzing a hydrogen fluoride-containing molten salt, the electrolytic apparatus being advantageous in that the electrolysis can be performed without the occurrence of the anode effect even at a high current density and without the occurrence of an anodic dissolution. In the present invention, this task has been accomplished by an electrolytic apparatus for producing fluorine or nitrogen trifluoride by electrolyzing a hydrogen fluoride-containing molten salt at an applied current density of from 1 to 1,000 A / dm2, the electrolytic apparatus using a conductive diamond-coated electrode as an anode.
Owner:TOYO TANSO KK
Carbon-based material, electrode catalyst, oxygen reduction electrode catalyst, gas diffusion electrode, aqueous solution electrolysis device, and method of preparing carbon-based material
InactiveUS20140353144A1Improve performanceReduced responseMaterial nanotechnologyCellsElectrolysisX-ray
A carbon-based material in accordance with the present invention includes graphene doped with metal atoms and at least one type of non-metal atoms selected from a group consisting of nitrogen atoms, boron atoms, sulfur atoms, and phosphorus atoms. A diffraction pattern obtained by X-ray diffraction measurement of the carbon-based material by use of CuKα radiation showing that a proportion of the highest of intensities of peaks derived from an inactive metal compound and a metal crystal to an intensity of a (002) peak is 0.1 or less.
Owner:PANASONIC CORP +1
Electrolytic anode and method for electrolytically synthesizing fluorine containing substance using the electrolytic anode
ActiveUS20060219570A1Synthetic strongSuppress generationMachining electrodesElectrical-based machining electrodesSubstance useFluoride
The present invention provides an electrolytic anode for use in electrolytically synthesizing a fluorine-containing substance by using an electrolytic bath containing a fluoride ion including: an electroconductive substrate having a sure including an electroconductive carbonaceous material; and an electroconductive carbonaceous film having a diamond structure, the electroconductive carbonaceous film coating a part of the electroconductive carbonaceous substrate, and a method for electrolytically synthesizing a fluorine-containing substance using the electrolytic anode.
Owner:TOYO TANSO KK +1
Graphene material inlaid with single metal atoms and preparing method and application thereof
ActiveUS20190186029A1Atom utilization is highImprove catalytic performanceCell electrodesGrapheneDoped grapheneCvd graphene
The present invention relates to a graphene material inlaid with single metal atoms, the preparation method thereof and its application of being used as the catalyst for the electroreduction of carbon dioxide. The graphene material inlaid with single metal atoms comprises single metal atoms and graphene; the single metal atoms are dispersed in the framework of the graphene; and the graphene is at least one selected from N doped graphene and N and S co-doped graphene. The material is used for the electrochemical reduction reaction of carbon dioxide, which significantly improves the utilization efficiency of the metal atoms and enhances the catalytic activity for the electroreduction of carbon dioxide, improves the catalytic stability, inhibits effectively the hydrogen evolution reaction, improves the selectivity for CO product, and broadens the electric potential window of reducing carbon dioxide to generate CO.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
3D reduced graphene oxide foams embedded with nanocatalysts, synthesizing methods and applications of same
A method of synthesizing three-dimensional (3D) reduced graphene oxide (RGO) foams embedded with water splitting nanocatalysts includes providing a first solution containing nickel (II) nitrate, a second solution containing iron (III) nitrate, and a graphene oxide (GO) aqueous suspension; mixing the GO aqueous suspension with the first solution and the second solution to form a GO-Ni—Fe mixture; adjusting a pH value of the GO-Ni—Fe mixture to be about 3.5; and performing hydrothermal reaction in the GO-Ni—Fe mixture to form RGO-Ni—Fe foams, wherein nanocatalysts containing Ni-Fi oxide particles are embedded in porous structures of the 3D RGO foams.
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ARKANSAS
Carbon-based material, electrode catalyst, oxygen reduction electrode catalyst, gas diffusion electrode, aqueous solution electrolytic device, and production method for carbon-based material
ActiveCN103974900AImprove performanceMaterial nanotechnologyActive material electrodesRocking curveElectrolysis
Provided is a carbon-based material having high catalytic activity. This carbon-based material comprises a graphene doped with a metal atom and at least one type of non-metallic atom selected from a nitrogen atom, a boron atom, a sulfur atom, and a phosphorous atom. The ratio, for the carbon-based material, between the maximum peak intensity derived from an inactive metal compound and a metal crystal, and the (002) surface peak intensity in a rocking curve obtained by x-ray diffraction measurement using a CuKalpha ray is no more than 0.1.
Owner:PANASONIC CORP +1
Electrolytic water splitting using a carbon-supported mnox-composite
InactiveUS20150068917A1High activityInexpensive and scalable techniqueMachining electrodesMaterial nanotechnologyWater useElectrolysis
The present invention relates to the electrolytic splitting of water using a carbon-supported manganese oxide (MnOx) composite. Specifically, the present electrolytic splitting of water is carried under neutral electrolyte conditions with a high electrolytic activity, while using an oxygen evolution reaction (OER)-electrode comprising the present carbon-supported MnOx composite. Next, the present invention relates to a process for producing such a carbon-supported MnOx composite as well as to a composite obtainable by the present process for producing the same and to an OER-electrode comprising the carbon-supported MnOx composite obtainable by the present process.
Owner:MAX PLANCK GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN EV
Diamond electrodes for electrochemical devices
InactiveUS20150060267A1Reduce the effective areaImprove electrochemical activityElectrode shape/formsSpecial surfacesDiamond electrodesElectrical battery
A bulk boron doped diamond electrode comprising a plurality of grooves disposed in a surface of the bulk boron doped diamond electrode. The bulk boron doped diamond electrode is formed by growing a bulk boron doped diamond electrode using a chemical vapour deposition technique and forming a plurality of grooves in a surface of the bulk boron doped diamond electrode. According to one arrangement, the plurality of grooves are formed by forming a pattern of carbon solvent metal over a surface of the bulk boron doped diamond electrode and heating whereby the carbon solvent metal dissolves underlying diamond to form grooves in the surface of the bulk boron doped electrode. The invention also relates to an electrochemical cell comprising one or more grooved bulk boron doped diamond electrodes. The or each bulk boron doped diamond electrode is oriented within the electrochemical device such that the grooves are aligned in a direction substantially parallel to a direction of electrolyte flow.
Owner:ELEMENT SIX LTD
Engineered electrode for electrobiocatalysis and process to construct the same
The present disclosure provides a ready-to-use bio-electrode stable for long term storage and a process of constructing the same. The process for construction of bio-electrode for electro-biocatalysis comprising of: selection of an electro-active bacteria; enrichment of said electro-active bacteria in a nutrient rich medium; separation of said electro-active bacterial cells from said nutrient rich medium; selection of an electrode material; surface modification of said electrode material; layering the surface modified electrode material with conductive material; layering the surface modified electrode material with an electro-active bacterial cells along with biofilm inducing agents and stabilizing agents; conditioning the electro-active bacterial cells layered electrode; incubating the electrode obtained with an immobilizing agent along with conductive material; and conditioning the electrode with micronutrients to obtain a bio-electrode.
Owner:INDIAN OIL CORPORATION
Manufacturing carbon-based combustibles by electrochemical decomposition of co2
InactiveUS20120055804A1Organic diaphragmsMultiple component coatingsPhysical chemistryElectrochemical decomposition
Provided is a method for the electrochemical conversion of carbon dioxide to fuels. The method employs reducing CO2 in an electrochemical cell using an aerogel carbon electrode and an ionic liquid membrane, thereby providing a carbon-based combustible.
Owner:BEN GURION UNIVERSITY OF THE NEGEV
Hydrogen oxidation and generation over carbon films
An electrode comprises an acid treated, cathodically cycled carbon-comprising film or body. The carbon consists of single walled nanotubes (SWNTs), pyrolytic graphite, microcrystalline graphitic, any carbon that consists of more than 99% sp2 hybridized carbons, or any combination thereof. The electrode can be used in an electrochemical device functioning as an electrolyser for evolution of hydrogen or as a fuel cell for oxidation of hydrogen. The electrochemical device can be coupled as a secondary energy generator into a system with a primary energy generator that naturally undergoes generation fluctuations. During periods of high energy output, the primary source can power the electrochemical device to store energy as hydrogen, which can be consumed to generate electricity as the secondary source during low energy output by the primary source. Solar cells, wind turbines and water turbines can act as the primary energy source.
Owner:UNIV OF FLORIDA RES FOUNDATION INC
Electrode for electrochemical reaction and production process thereof
ActiveUS8338323B2Quality improvementIncrease the areaMachining electrodesNoble metal coatingsElectrochemical responseWater vapor
Owner:DE NORA PERMELEC LTD +1
Carbon-based material, electrode catalyst, electrode, gas diffusion electrode, electrochemical device, fuel battery, and process for producing carbon-based material
ActiveCN104321276AHigh catalytic activityEasy to getGraphiteHybrid capacitor electrodesPlatinumFuel cells
The carbon-based material according to the present invention has been doped with non-metallic atoms, e.g., nitrogen atoms, and metallic atoms. In a radial distribution function obtained by subjecting the K-edge EXAFS of the metallic atoms to Fourier transform, the ratio of the intensity (A) for the maximum peak appearing around the coordination bond distance between a metallic atom and a non-metallic atom to the intensity (B) for the maximum peak appearing around the metallic-bond distance between metallic atoms, A / B, is 4.0 or higher. However, if the metallic atoms are platinum atoms, the A / B ratio in a radial distribution function obtained by subjecting the LIII-edge EXAFS of the platinum atoms to Fourier transform is 4.0 or higher.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Diamond electrode
ActiveUS8361289B2Reduce manufacturing costShort lifeCellsPhotography auxillary processesWater useElectrolysis
An electrode comprising an electrically conducting diamond plate wherein the diamond plate comprises at least one elongate aperture and having an aperture edge length per unit working area of the diamond plate of greater than about 4 mm / mm2, electrolysis cells comprising such electrodes, methods of treating water using such electrolysis cells and a method of production of ozone are disclosed.
Owner:FRANKE COFFEE SYST AMERICAS LLC
Oxygen gas diffusion cathode for sodium chloride electrolysis
InactiveUS7914652B2Improve conductivityImprove stabilityActive material electrodesElectrode shape/formsElectrolysisPalladium
Owner:DE NORA PERMELEC LTD
Carbon black, electrocatalyst carrier formed from carbon black, and electrocatalyst and electrochemical device using carrier
A carbon black is provided which is useful as an electrocatalyst carrier. The carbon black has a DBP oil absorption of 170 to 300 cm3 / 100 g, a specific surface area as measured by a BET method of 250 to 400 m2 / g, a primary particle diameter value of 10 to 17 nm, and a total volume of open pores at the surface which have a pore radius of 10 to 30 nm of 0.40 to 2.0 cm3 / g. The electrocatalyst can be used in electrochemical devices such as solid polymer electrolyte fuel cells.
Owner:N E CHEMCAT
Method of Coating for Diamond Electrode
InactiveUS20080268150A1Prevent oxidationIncreased durabilityPolycrystalline material growthWater/sewage treatmentHigh concentrationDiamond electrodes
The present invention relates to a film-formation method of a diamond electrode used in an electrolytic processing apparatus and other devices for treating water and waste liquid. This method utilizes CVD such as hot filament CVD including supplying a high-concentration carbon source to form a low-quality thick first diamond film (1) on a substrate at a high rate, and then supplying a low-concentration carbon source to form a high-quality thin second diamond film (2) on the first film at a low rate. This structure can prevent oxidation corrosion due to OH radical and can prevent entry of an electrolytic solution into the film, thereby enhancing durability of the diamond film. The thick first diamond film is formed at a high rate, and the second diamond film is made thin at a low rate. Therefore, a total film-formation time can be short, and a low-cost diamond electrode can be made.
Owner:EBARA CORP
Oxygen gas diffusion cathode for sodium chloride electrolysis
InactiveUS20080116063A1Improve conductivityImprove stabilityActive material electrodesElectrode shape/formsElectrolysisPalladium
Owner:DE NORA PERMELEC LTD
Bio-assisted process for conversion of mixed volatile fatty acids to selective drop-in fuels
The present invention relates to a two-stage process for production of drop-in fuels / alcohols (methanol, ethanol or butanol) from volatile fatty acids produced either synthetically from fossil resources or as metabolic intermediates in acidification step of anaerobic digestion process from waste biomass and organic materials.
Owner:INDIAN OIL CORPORATION
Apparatus and method for manufacturing vitreous silica crucible
ActiveUS20120131954A1Good inner surface propertyImprove removal efficiencyPolycrystalline material growthBy pulling from meltCrucibleMaterials science
There are provided an apparatus and a method for manufacturing a vitreous silica crucible which can prevent the deterioration of the inner surface property in the manufacturing process of a vitreous silica crucible. The apparatus includes a mold defining an outer shape of a vitreous silica crucible, and an arc discharge unit having electrodes and a power-supply unit, wherein each of the electrodes includes a tip end directed to the mold, the other end opposite to the tip end, and a bent portion provided between the tip end and the other end.
Owner:SUMCO CORP
Electrochemical Production of Graphene Sheets from Coke or Coal
ActiveUS20170370009A1Promoting exfoliationPromoting intercalationCellsGrapheneGraphenePetroleum coke
A method of producing graphene sheets from coke or coal powder, comprising: (a) forming an intercalated coke or coal compound by electrochemical intercalation conducted in an intercalation reactor, which contains (i) a liquid solution electrolyte comprising an intercalating agent; (ii) a working electrode that contains the powder in ionic contact with the liquid electrolyte, wherein the coke or coal powder is selected from petroleum coke, coal-derived coke, meso-phase coke, synthetic coke, leonardite, lignite coal, or natural coal mineral powder; and (iii) a counter electrode in ionic contact with the electrolyte, and wherein a current is imposed upon the working electrode and the counter electrode for effecting electrochemical intercalation of the intercalating agent into the powder; and (b) exfoliating and separating graphene planes from the intercalated coke or coal compound using an ultrasonication, thermal shock exposure, mechanical shearing treatment, or a combination thereof to produce isolated graphene sheets.
Owner:GLOBAL GRAPHENE GRP INC
Mosquito-killing device
ActiveUS20190159440A1Simple structureEasy to assembleCellsInsect catchers and killersPower gridEngineering
The present invention relates to a mosquito-killing device, characterized in that it comprises a casing and a control unit; the casing is provided with a first opening for mosquitoes and insects to enter; a carbon dioxide generating device, a fan and an electric grid are provided inside the casing; the control unit controls operation of the carbon dioxide generating device, the fan and the electric grid.
Owner:NINGBO DAYANG TECH CO LTD
Conductive diamond electrode and ozone generator using the same
ActiveUS8277623B2High mechanical strengthLess expensiveCellsMachining electrodesOzone generatorElectrolysis
The present invention relates to a conductive diamond electrode, comprising a substrate having a plurality of convex and concave part disposed over the entire surface of the conductive diamond electrode, and a diamond film coated on the surface of said substrate, wherein the width of each convex part of said convex and concave part is in a range from 0.2 mm to 1 mm. The present invention can provide a conductive diamond electrode, applying a thin film of conductive diamond and a thick substrate, being less expensive than a self-supported type conductive diamond electrode and also having mechanical strength enough to be used in the zero-gap electrolysis, functioning stably for a long time with smooth water supply or gas liberation, and an ozone generator using the conductive diamond electrode.
Owner:DE NORA PERMELEC LTD
Carbonized charcoal electrode
An apparatus (1) for use of carbonized charcoal powder as an electrode is provided. Charcoal is provided as a powder, carbonized, and placed in a container (16) by which compressive pressure is applied to the carbonized-charcoal powder via one or more sides of the container (16). As a result of the compressive pressure the packed-bed (11) of carbonized-charcoal powder manifests a resistivity of less than about 1 ohm-cm and is suitable for use as an electrode in a fuel cell, battery or electrolyzer. The apparatus is adapted with electrical contacts (8, 9, 10) to conduct electric flow to or from the electrode and adapted for communication of an electrolyte with the electrode.
Owner:UNIV OF HAWAII
Oxidation of water using layered double hydroxide catalysts
A method for oxidizing water including fabricating a working electrode using an electrocatalyst, preparing an electrochemical cell by putting the working electrode, a counter electrode, and a reference electrode in an electrolyte, and performing an oxygen evolution reaction (OER) by applying an electrical potential between the working electrode and the counter electrode. The electrocatalyst includes a nickel-calcium-iron layered double hydroxide (NiCaFe-LDH) nanoparticle, the NiCaFe-LDH nanoparticle has a formula of [Fex)NiCa(1-x](OH)2(NO3)x.nH2O, where: 0.2≤x≤0.4 and 0≤n≤2.5.
Owner:AZARBAIJAN SHAHID MADANI UNIVERSITY +3
Anode for electrolysis and method of electrolytically synthesizing fluorine-containing substance using the anode for electrolysis
InactiveUS20100193371A1Improve compoundIncrease productivityMachining electrodesPhotography auxillary processesSubstance useElectrolysis
The present invention provides an electrode for electrolysis, wherein the electrode comprises: a substrate comprising an electrically conductive material, wherein the surface of the substrate is made of glassy carbon; and an electrically conductive diamond film with which at least part of the substrate is coated.
Owner:DE NORA PERMELEC LTD
Conducting Carbon Cloth Electrode for Hydrogen Generation and Dye Sensitized Solar Cells
InactiveUS20160201206A1Simple and convenient and cost-effective fabricationLow costLight-sensitive devicesElectrolytic organic productionSub thresholdHydrogen
Disclosed herein is functional conducting carbon cloth with permeability and turbostratic disorder, and process for preparation of the same. Further it describes use of said carbon cloth as anode in alkaline water electrolysis for generation of hydrogen at sub-threshold potential (<1.23V) and generation of carbon quantum dots (CQDs) at super-threshold potential (>1.23V). The invention also relates to the efficient use of the said carbon cloth as counter electrode in Dye Sensitized Solar Cells (DSSCs).
Owner:COUNCIL OF SCI & IND RES
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