Low-voltage alkaline production using hydrogen and electrocatalytic electrodes
First Claim
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1. A system comprising:
- a hydrogen-oxidizing anode comprising a solid support, a mesh/guage support between the solid support and fiber support wherein the solid support and the mesh/guage support comprise electrically conductive metal, fiber support wherein the fiber support comprises carbon fiber, carbon fiber paper, carbon fabric, carbon nanowebbing, carbon nanotube, or combinations thereof and electrocatalyst particles wherein the electrocatalyst particles are provided on the solid support, the mesh/guage support, the fiber support, or combinations thereof, wherein the hydrogen-oxidizing anode is in communication with an anode electrolyte, and wherein the electrocatalyst is configured to catalyze oxidation of hydrogen gas to form hydrogen ions without forming a gas.
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Abstract
An alkaline production system comprising an electrochemical unit comprising a hydrogen-oxidizing anode, a cathode compartment comprising a cathode and a hydrogen delivery system configured to deliver hydrogen gas to the anode, wherein the system configured to sequester carbon dioxide with the cathode electrolyte; and methods thereof. In another embodiment, a system comprising a hydrogen-oxidizing anode in communication with a cathode electrolyte comprising bicarbonate ion; and an hydrogen delivery system configured to deliver hydrogen gas to the anode; and methods thereof.
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Citations
23 Claims
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1. A system comprising:
a hydrogen-oxidizing anode comprising a solid support, a mesh/guage support between the solid support and fiber support wherein the solid support and the mesh/guage support comprise electrically conductive metal, fiber support wherein the fiber support comprises carbon fiber, carbon fiber paper, carbon fabric, carbon nanowebbing, carbon nanotube, or combinations thereof and electrocatalyst particles wherein the electrocatalyst particles are provided on the solid support, the mesh/guage support, the fiber support, or combinations thereof, wherein the hydrogen-oxidizing anode is in communication with an anode electrolyte, and wherein the electrocatalyst is configured to catalyze oxidation of hydrogen gas to form hydrogen ions without forming a gas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system comprising:
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an electrochemical unit comprising an anode compartment comprising a hydrogen-oxidizing anode comprising a solid support, a mesh/guage support between the solid support and fiber support wherein the solid support and the mesh/guage support comprise electrically conductive metal, fiber support wherein the fiber support comprises carbon fiber, carbon fiber paper, carbon fabric, carbon nanowebbing, carbon nanotube, or combinations thereof and electrocatalyst particles wherein the electrocatalyst particles are provided on the solid support, the mesh/guage support, the fiber support, or combination thereof, and a cathode compartment comprising a cathode in a cathode electrolyte, wherein the hydrogen-oxidizing anode is in communication with an anode electrolyte, and wherein the electrocatalyst is configured to catalyze oxidation of hydrogen gas to form hydrogen ions without forming a gas, a hydrogen gas delivery system configured to deliver hydrogen gas to the anode, and a carbon sequestration system operably connected to the electrochemical unit and configured to sequester carbon dioxide with the cathode electrolyte. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification