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4301218 |
Bi-porous Raney-nickel electrode
A hydrogen electrode for batteries or galvanic cells in which a first section of the electrode has relatively large pores and serves for the transport of hydrogen and a second section with...
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4297419 |
Anode-matrix composite for molten carbonate fuel cell
A molten carbonate fuel cell anode-matrix composite and a molten carbonate fuel cell including such composite are described. The anode-matrix material comprises carbonate electrolyte in intimate...
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4293396 |
Thin carbon-cloth-based electrocatalytic gas diffusion electrodes, and electrochemical cells comprising the same
This disclosure is concerned with thin gas diffusion electrodes comprising an open pore carbon cloth substrate provided with a uniform mixture of catalytic carbon particles and preferably Teflon...
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4276356 |
Matrix member for containing fuel cell acid electrolyte
A matrix member for carrying the acid electrolyte of a fuel cell comprised of a first layer containing a carbon material and a second layer containing a silicon carbide material. A further matrix...
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4269642 |
Method of forming densified edge seals for fuel cell components
A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte. The edges are made from the same...
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4264686 |
Graphite felt flowthrough electrode for fuel cell use
An improved fuel cell electrode comprising a graphite felt substrate having a thin vapor deposited graphite film coating the exterior fiber surfaces and a perforated metallic backing plate having...
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4264685 |
Oxygen electrode of the type Pt.sub.3 MO.sub.6
Electrode comprised of the electrocatalyst of the prototype formula Pt 3 MO 6 wherein M is Mn, Fe, Co, Ni, Zn, Mg, Ca, Cu, Cd or Hg.
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4252868 |
Fuel cell construction and method of manufacturing a fuel cell
A fuel cell is provided which comprises a matrix layer of an electrolyte in a material which chemically and physically absorbs the electrolyte, such as a polyester fiber bonded with phenol...
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4251344 |
Porous nickel coated electrodes
An improved electrode having a surface mixture of nickel and porous nickel produced by applying a paste mixture of NiAl 2 and Ni 3 B together with a vehicle to a substrate. After burning off the...
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4248682 |
Carbon-cloth-based electrocatalytic gas diffusion electrodes, assembly and electrochemical cells comprising the same
This disclosure is concerned with improved thin gas diffusion electrodes comprising open pore carbon cloth substrates provided with a uniform mixture of catalytic carbon particles and preferably...
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4242421 |
Electrode catalyst
An electrode catalyst for a fuel cell comprising at least one boride of molybdenum is disclosed. The electrode catalyst is far more excellent than conventional catalysts such as platinum black in...
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4240882 |
Gas fixation solar cell using gas diffusion semiconductor electrode
A gas diffusion semiconductor electrode and solar cell and a process for gaseous fixation, such as nitrogen photoreduction, CO 2 photoreduction and fuel gas photo-oxidation. The gas diffusion...
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4237195 |
Porous electrode
An improved porous electrode for use in electrochemical cells, particularly for use in fuel cells. The electrode is of the kind comprising a porous layer containing carbon and a non-polar resin...
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4232097 |
Fuel cell oxygen electrode
An oxygen electrode for a fuel cell utilizing an acid electrolyte has a substrate of an alkali metal tungsten bronze of the formula: A x WO 3 where A is an alkali metal and x is at least 0.2,...
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4226684 |
Electrode coating method
Electrodes ultilized in electrolytic processes are coated with materials improving the electrodes by the incremental hammering of the powdered material serving as the coating on to the base...
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4215184 |
Nickel-oxide/hydrogen battery cells
The heat transfer in a nickel-oxide/hydrogen battery cell is substantially improved by increasing the thermal conductivity in the axial direction of the electrode stack. This improvement in thermal...
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4202934 |
Noble metal/vanadium alloy catalyst and method for making
A novel catalyst comprises an alloy of a noble metal and vanadium. The catalyst is particularly useful in an electrochemical cell cathode electrode. The method for making the alloy involves...
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4192907 |
Electrochemical cell electrodes incorporating noble metal-base metal alloy catalysts
A novel and improved fuel cell electrode includes a finely divided noble metal-base metal alloy catalyst. The catalytic activity of noble metal in the electrode is greater than the catalytic...
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4186110 |
Noble metal-refractory metal alloys as catalysts and method for making
Finely divided noble metal-refractory metal alloys and methods for making them are disclosed. As catalysts these alloys have greater activity than a catalyst of the same unalloyed noble metal and...
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4152489 |
Multi-ply laminar pasted air electrodes
An air electrode, for use in electrochemical energy cells, is made, comprising a multi-layer hydrophilic section, consisting of at least two substantially uncompacted laminated layers of plaques...
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4146458 |
Electrochemical device having an oxygen electrode containing a pyrochlore type compound electrocatalyst
An electrochemical device is described which has an oxygen electrode which contains a pyrochlore type electrocatalyst material. This electrocatalyst material is one or more electrically conductive...
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4145314 |
Preparation of highly dispersed supported group VIII metal catalysts and the redispersion of sintered or agglomerated supported group VIII metal catalysts by the addition of phosphorus
The instant invention relates to a method of preparing highly dispersed supported Group VIII metal catalysts. The instant invention further relates to the redispersion of sintered or agglomerated...
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4137372 |
Catalyst and method for making
The rate of platinum recrystallization of a platinum supported on carbon catalyst is reduced by depositing porous carbon on and around the supported platinum crystallites. The reduced rate of...
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4137373 |
Platinum catalyst and method for making
The rate of platinum recrystallization of a platinum supported on carbon catalyst is reduced and the activity of the catalyst is increased by depositing porous carbon on and around the supported...
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4132620 |
Electrocatalytic electrodes
Novel electrodes for electrochemical reactions in an electrolytic medium, wherein the active surface layer of the electrode contains an electrocatalytically effective amount of germanium disulfide....
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4131721 |
Electrolytic cell having a novel electrode including platinum on a carbon support activated with a phosphorus-oxygen-containing compound
A novel electrolytic cell is described which contains an anode electrode and a cathode electrode, each being adapted for contact with an electrolyte. At least one of the electrodes includes...
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4131570 |
Method for the manufacture of a silver catalyst for electrochemical cells and the catalyst prepared by the method
The invention relates to a method for manufacturing a silver catalyst for electrochemical cells, wherein metallic silver is precipitated on a metal hydroxide gel by reduction of a silver salt....
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4129685 |
Fuel cell structure
In a stack of electrochemical cells, such as fuel cells, distinct channels behind each electrode for carrying reactant gas are eliminated by using highly porous gas distribution layers, such as...
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4126934 |
Method for the manufacture of an electrode for electrochemical cells
A method for the manufacture of electrodes for electrochemical cells, is provided in which a Raney rare-metal catalytic layer is disposed on a metallic support structure in layer form. According to...
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4127468 |
Process for preparing a metal electrode
Metal electrodes are prepared by contacting a basis-metal electrode with a solution which contains an alloying element compound, said basis-metal electrode comprising a basis-metal which is present...
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4115628 |
Electrode comprising a nickel based catalyst for electrochemical generators
The invention relates to an improved electrode for an electrochemical generator, said electrode enabling the electrochemical oxidation of hydrogen supplied of the interface of said electrode and an...
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4115627 |
Electrochemical cell comprising a ribbed electrode substrate
A ribbed electrode substrate for an electrochemical cell comprises a gas porous substrate having ribs of hydrophilic material extending across one side thereof. The other side of the substrate is...
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4113923 |
Fuel cell including at least one improved element
The fuel cell improved element comprises two terminal electrodes with intermediate electrodes formed by the arms of at least one pair of U- or V-shaped members engaging each other. These electrodes...
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4111842 |
Process for the preparation of supported catalysts
A process for preparing activated carbon supported catalysts by mixing an activated carbon support having acid surface groups with an aqueous solution containing one or more cations selected from...
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4090978 |
Electrocatalysts and a method for the preparation thereof
Electrocatalysts which may be used in the preparation of electrodes for electrochemical cells such as fuel cells comprise a carbonaceous pyropolymer having the surface thereof impregnated with at...
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4064322 |
Electrolyte reservoir for a fuel cell
An electrolyte reservoir layer disposed behind and adjacent one of the catalyst layers of a fuel cell is porous and hydrophilic to the electrolyte. In one embodiment the reservoir layer includes...
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4048383 |
Combination cell
A combination water electrolyzer and fuel cell for selectively storing and supplying energy while in a substantially fixed position, typically comprising a pan held in a substantially horizontal...
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4038463 |
Electrode reservoir for a fuel cell
An electrolyte reservoir layer disposed behind and adjacent one of the catalyst layers of a fuel cell is porous and hydrophilic to the electrolyte. In one embodiment the reservoir layer includes...
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4035551 |
Electrolyte reservoir for a fuel cell
An electrolyte reservoir layer disposed behind and adjacent one of the catalyst layers of a fuel cell is a porous, hydrophilic material. Excess liquid volume wicks into the reservoir layer through...
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4024044 |
Electrolysis cathodes bearing a melt-sprayed and leached nickel or cobalt coating
A cathode adapted for the electrolysis of water or an aqueous solution of an alkali metal halide salt because it gives prolonged lowering of hydrogen overvoltage is provided by an electrically...
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4017664 |
Silicon carbide electrolyte retaining matrix for fuel cells
In a fuel cell utilizing an acid electrolyte, such as H 3 PO 4 , the electrolyte retaining matrix is made from silicon carbide. The silicon carbide has been found to be virtually inert to H 3 PO...
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3992278 |
Electrolysis cathodes having a melt-sprayed cobalt/zirconium dioxide coating
A cathode adapted for the electrolysis of water or an aqueous alkali metal halide salt solutions because it gives prolonged lowering of hydrogen overvoltage is provided by an electrically...
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3991169 |
Method for the production of porous carbon sheet
A porous carbon sheet having excellent physical properties is obtained by dispersing oxidized pitch fibers in a liquid containing at least one wetting agent having at least one hydroxyl group and a...
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3985578 |
Tailored-carbon substrate for fuel cell electrodes
In accordance with a preferred embodiment of this invention, the polarization or overvoltage of a carbon black-based air cathode is significantly reduced by adding from 1 to 5 percent, by weight...
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3977901 |
Metal/air cells and improved air electrodes for use therein
Air electrodes for use in electrochemical energy cells which comprise a hydrophilic layer and a hydrophobic layer laminated thereto. The hydrophilic layer essentially comprises a hydrophilic...
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3961987 |
Electro-catalyst and process of manufacture
The invention relates to an electrocatalyst capable of being used, in particular, in anodes of fuel cells with acid electrolyte, and to a process for the manufacture of this electrocatalyst. The...
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3956014 |
Precisely-structured electrochemical cell electrode and method of making same
An electrochemical cell electrode, having clearly segregated and structured hydrophobic gas channels and electrolyte-filled catalyst channels is provided in which the size and shape of the various...
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3944434 |
Hybrid electrode for metal/air cells
A hybrid electrode for metal/air cells of the type having a hydrophilic layer of nickel on the electrolyte side for the precipitation of oxygen, hydrophobic layer of plastic on the gas side and a...
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3935027 |
Oxygen-reduction electrocatalysts for electrodes
Gas electrodes which contain a hydrophilic layer are disclosed. The hydrophilic layer is adapted to provide a gas-liquid interface therein; and includes an oxygen absorption/reduction material...
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3929422 |
Means for recombining hydrogen and oxygen in a sealed battery and controlling recombination at catalyst surfaces
Hydrogen and oxygen gases are safely recombined in the presence of a catalytic device which operates in two stages in a secondary battery system. Recombination continues in a controlled manner...
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