Abstract: To provide an electrolysis cell for producing an organic chemical hydride capable of advancing a reduction reaction in a cathode of an organic compound having an unsaturated bond with high current efficiency and a small electric power consumption unit.

Abstract: Lead from lead acid battery scrap is recovered in two separate production streams as clean grid lead and as high-purity lead without smelting. In preferred aspects, lead recovery is performed in a continuous process that uses an aqueous electroprocessing solvent and electro-refining. Spent electroprocessing solvent and/or base utilized to treat lead paste from the lead acid battery scrap can be recycled to the recovery process.

Abstract: Systems and methods for electrochemically producing chemical products are provided. In certain cases, the systems and methods described herein are capable of producing chemical products such as hydrogen peroxide in solutions with relatively low concentrations of electrolyte or other dissolved species at high efficiencies and/or low energetic cost. In some cases, redox mediators are used to temporally decouple direct electrochemical processes from the production of the chemical product.

Abstract: A carbon dioxide electrolytic device includes: an electrolysis cell; a sensor acquiring data indicating a concentration of a first product containing a carbon compound in an anode flow path of the electrolysis cell; a power controller to apply a voltage between an anode and a cathode of the electrolysis cell; a refresh material source including a gas source to supply a gaseous substance to at least one selected from the group consisting of the anode and cathode flow paths, and a solution supply source to supply a rinse solution to at least one selected from the group consisting of the anode and cathode flow paths; and a controller programmed to stop supply of carbon dioxide and an electrolytic solution, and supply the rinse solution to at least one selected from the group consisting of the anode and cathode flow paths from the refresh material source, in accordance with the data.

Abstract: Molten salt electrolytes are described for use in electrochemical synthesis of hydrocarbons from carboxylic acids. The molten salt electrolyte can be used to synthesize a wide variety of hydrocarbons with and without functional groups that have a broad range of applications. The molten salt can be used to synthesize saturated hydrocarbons, diols, alkylated aromatic compounds, as well as other types of hydrocarbons. The molten salt electrolyte increases the selectivity, yield, the energy efficiency and Coulombic efficiency of the electrochemical conversion of carboxylic acids to hydrocarbons while reducing the cell potential required to perform the oxidation.

Abstract: A system and a method are provided for making hypochlorous acid using saltwater with sodium bicarbonate. The system includes an electrolytic cell, a quantity of saltwater solution, and a quantity of sodium bicarbonate. The quantity of saltwater solution is poured into the electrolytic cell and then undergoes an electrolytic process. As a result of the quantity of saltwater solution going through the electrolytic process, a hypochlorous acid solution is yielded. In order to ensure a pure hypochlorous acid solution is formed, the quantity of sodium bicarbonate can be added into the electrolytic cell along with the quantity of saltwater solution before the electrolytic process or the quantity of sodium bicarbonate can be added into the hypochlorous acid solution after the hypochlorous acid solution is yielded. This process adjusts the pH level of the hypochlorous acid solution, and thus, produces a purer hypochlorous acid solution.

Abstract: A system for overheating gases at the inlet of a SOEC/SOFC-type solid oxide stack, the stack including a main body that has first and second zones separated by a median plane, and inflow and outflow conduits, the zones include gas circulation circuits extending in the form of a spiral and communicating by means of a passage passing through the main body. A gas flow to be heated entering the inflow conduit circulates in the first gas circulation circuit and passes through the passage to then circulate in the second gas circulation circuit and in the conduit for the outflow of the reheated gases in order to reach the inlet of the SOEC/SOFC-type solid oxide stack.

Abstract: Electroplating systems according to the present technology may include a two-bath electroplating chamber including a separator configured to provide fluid separation between a first bath configured to maintain a catholyte during operation and a second bath configured to maintain an anolyte during operation. The electroplating systems may include a catholyte tank and an anolyte tank fluidly coupled with the two baths of the two-bath electroplating chamber. The electroplating systems may include a first pump configured to provide catholyte from the catholyte tank to the first bath. The electroplating systems may include a second pump configured to provide anolyte from the anolyte tank to the second bath. The electroplating systems may also include an oxygen-delivery apparatus configured to provide an oxygen-containing fluid within the electroplating system.

Abstract: The invention relates to a device, including: a channel including an inlet at a first end of the channel and an outlet at a second end of the channel; a cathode arranged in the channel, which cathode includes a first segment selected from titanium, stainless steel and titanium provided with a mixed metal oxide coating layer including ruthenium oxide and/or iridium oxide and a second segment including carbon, such as a carbon (felt) segment, arranged downstream of the first segment, an anode, arranged in the channel, selected from titanium or, stainless steel and titanium provided with a mixed metal oxide coating layer including ruthenium oxide and/or iridium oxide, which coating layer faces the cathode; and a power source electrically connected to the cathode and the anode. The invention further relates to a method for the production of chlorine dioxide.

Abstract: Devices for electrochemically activating precursor compound through oxidation (or reduction) to produce active compound are provided.

Abstract: The present disclosure relates to electrolysis systems and methods. The teachings thereof may be embodied in methods and systems for the utilization of carbon dioxide and production of carbon monoxide. For example, a method may include: passing an electrolyte and carbon dioxide in front of a cathode through a cathode chamber; and removing electrolysis byproducts from an electrolyte/electrolysis product mixture using a catalytic filter system. The cathode may include material to reduce carbon dioxide. The process may generate a hydrocarbon compound or carbon monoxide as the electrolysis product and a formate as an electrolysis byproduct. The filter system may include a functionalized complex or a functionalized support material which catalyzes a cleavage reaction of formates (a) to hydrogen and carbon dioxide, or (b) to water and carbon monoxide.

Abstract: Various embodiments may include an electrolyzer for electrochemical utilization of carbon dioxide comprising: electrolysis cell defining an anode space and a cathode space; an anode in the anode space; a cathode in the cathode space; a first cation-permeable membrane disposed between the anode space and the cathode space; and a second anion-selective membrane disposed between the first cation-permeable membrane and the cathode. The anode directly adjoins the first cation-permeable membrane. The second anion-selective membrane directly adjoins the first cation-permeable membrane and the second anion-selective membrane directly adjoins the cathode.

Abstract: Systems and methods for the recovery of noble metal from noble-metal-containing material are generally described. Certain embodiments related to systems and methods in which an electric current is transported between an electrode and the noble metal of a noble-metal-containing material to dissolve at least a portion of the noble metal from the noble-metal-containing material. The dissolved noble metal can subsequently be precipitated out of solution and recovered, according to certain embodiments. Noble metals can be recovered from any suitable noble-metal-containing material, including plated and/or filled scrap materials and/or other materials.

Abstract: There is disclosed an electrode array architecture employing continuous and discontinuous circumferential electrodes. There is further disclosed a process for the neutralization of acid generated at anode(s) by base generated at cathode(s) circumferentially located to each other so as to confine a region of pH change. The cathodes can be displayed as concentric rings (continuous) or as counter electrodes in a cross pattern (discontinuous). In this way reagents, such as acid, generated in a center electrode are countered (neutralized) by reagents, such as base, generated at the corners or at the outer ring.

Abstract: The present invention provides a gas generator, comprising a water tank and an electrolysis device. The water tank has a first hollow portion for containing electrolyzed water. The electrolysis device is disposed inside the first hollow portion of the water tank for electrolyzing the electrolyzed water to generate a hydrogen-oxygen mixed gas. When the electrolysis device starts to electrolyze the electrolyzed water, the first hollow portion of the water tank is filled with the electrolyzed water for standing at a full level of water. And after the electrolysis device electrolyzed the electrolyzed water, the level of water for the electrolyzed water filled into the first hollow portion of the water tank is higher than 95% of the full level of water. The gas generator of the present invention provides the design for saving space and nearly a zero gas chamber to reduce the possibility of explosions resulting from hydrogen-oxygen mixed gas.

Abstract: The invention provides an electrolytic cell and, more precisely, an electrolytic cell for the production of disinfecting liquids and detergents, the cell has a cylindrical tubular construction and wherein the cathode and the anode are arranged coaxially one with respect to the other, and wherein the anode has a conical shape. The invention furthermore also provides the operating method of the aforesaid electrolytic cell for the production of the aforementioned disinfectant and detergent liquids.

Abstract: A hydrogen station includes a state management apparatus that is connected to each of a plurality of systems and manages the states of the plurality of systems, and a safety control apparatus that is formed separately from the main equipment and is connected to the state management apparatus. The state management apparatus performs first watchdog control to check operations of the plurality of systems and the safety control apparatus performs second watchdog control to check an operation of the state management apparatus. The state management apparatus or the safety control apparatus cuts off the power supply from the safety control apparatus to the main equipment if an abnormality is recognized by the second watchdog control, even if the first watchdog control indicates correct operation.

Abstract: A system regulating pressure of a reactor for hightemperature electrolysis or co-electrolysis (HTE) or to an SOFC fuel-cell stack operating under pressure. The operation of the system includes: regulating upstream of one of the chambers, a flow rate of moisture-containing gas DH to guarantee electrochemical stability of a preset operating point; and controlling pressure by virtue of valves arranged downstream of the stack, for regulating gases including the moisture-containing gas, and which are generally hot.

Abstract: The present disclosure is a method and system for the reduction of carbon dioxide. The method may include receiving hydrogen gas at an anolyte region of an electrochemical cell including an anode, the anode including a gas diffusion electrode, receiving an anolyte feed at an anolyte region of the electrochemical cell, and receiving a catholyte feed including carbon dioxide and an alkali metal bicarbonate at a catholyte region of the electrochemical cell including a cathode. The method may include applying an electrical potential between the anode and cathode sufficient to reduce the carbon dioxide to at least one reduction product.

Abstract: An electrolytic reactor of an oxyhydrogen machine includes a main body with an internal chamber for accommodating a liquid, a carrier installed to the chamber for arranging even numbered electrode plates which are spaced from each other and two adjacent electrode plates having different polarities, a multiple of partitions extending to an appropriate length from the top surface to the bottom surface of the main body and spaced from each other, a communicating channel formed by each electrode plate and the main body and disposed between the bottom surface of the main body and each electrode plate, a liquid storage portion formed by the space between the partitions and the chamber and communicated to the communicating channel and a gas extraction unit installed on the main body and having independent first and second gas collection chambers for collecting hydrogen and oxygen respectively.