摘要:
Methods for simultaneous syngas generation by opposite sides of a solid oxide co-electrolysis cell are provided. The method can comprise exposing a cathode side of the solid oxide co-electrolysis cell to a cathode-side feed stream; supplying electricity to the solid oxide co-electrolysis cell such that the cathode side produces a product stream comprising hydrogen gas and carbon monoxide gas while supplying oxygen ions to an anode side of the solid oxide co-electrolysis cell; and exposing the anode side of the solid oxide co-electrolysis cell to an anode-side feed stream. The cathode-side feed stream comprises water and carbon dioxide, and the anode-side feed stream comprises methane gas such that the methane gas reacts with the oxygen ions to produce hydrogen and carbon monoxide. The cathode-side feed stream can further comprise nitrogen, hydrogen, or a mixture thereof.
摘要:
The present invention provides an electrocatalytic material and a method for making an electrocatalytic material. There is also provided an electrocatalytic material comprising amorphous metal or mixed metal oxides. There is also provided methods of forming an electrocatalyst, comprising an amorphous metal oxide film.
摘要:
Provided is an electrolysis cell capable of suppressing the degradation of a cathode by the reverse current at the time of stopping electrolysis. According to an aspect of the invention, there is provided an electrolysis cell comprising an anode chamber, a cathode chamber, a partition wall separating the anode chamber from the cathode chamber, an anode installed in the anode chamber, a cathode installed in the cathode chamber, and a reverse current absorbing body having a substrate and a reverse current absorbing layer formed on the substrate and installed in the cathode chamber, in which the anode and the cathode are electrically connected and the cathode and the reverse current absorbing layer are electrically connected.
摘要:
Electrochemical devices comprising electrocatalyst mixtures include at least one Catalytically Active Element and, as a separate constituent, one Helper Catalyst. The electrocatalysts can be used to increase the rate, modify the selectivity or lower the overpotential of chemical reactions. These electrocatalysts are useful for a variety of chemical reactions including, in particular, the electrochemical conversion of CO2. Chemical processes employing these catalysts produce CO, HCO−, H2CO, (HCO2)−, H2CO2, CH3OH, CH4, C2H4, CH3CH2OH, CH3COO−, CH3COOH, C2H6, (COOH)2, or (COO−)2. Devices using the electrocatalysts include, for example, a CO2 sensor.
摘要:
This invention includes a catalytic copper electrode is selected from the group comprising copper nanofoam, copper aerogel, and copper nanoparticles. Particular note is made of the catalytic copper electrode having at least about 5 times and preferably about 10 times the electrochemically accessible surface area as determined by the Randles-Sevcik equation at 50 mV/s. particular note is made of the catalytic coper electrode being a copper nanofoam electrode.This invention further includes a method for the reduction of CO2 by the steps of (i) providing a membrane divided electrochemical cell comprising an anode in a first cell compartment, a catalytic-copper electrode in a second cell compartment containing an aqueous electrolyte in contact with the anode and cathode; (ii) introducing CO2 to said second cell compartment (iii) exposing said CO2 to said catalytic-copper electrode at a step potential between about −0.8 and preferably about −1.0 and about −1.8 V versus the reference electrode; (iv) electrochemically reducing said CO2 and solution by the catalytic-copper electrode in the second cell compartment; (v) thereby producing propylene and (vi) extracting said propylene from said second compartment.
摘要:
A three electrode metal-air cell with a mechanically replaceable and electrochemically rechargeable metal anode has been proposed. The functions of oxygen reduction and oxygen evolution are split between two air electrodes that form the cell walls. The metal composition of the replaceable metal anode includes a conjugated polymer additive. The current collector of the metal anode has the shape of a spiral spring and is made of alloy of zinc, tin, lead, bismuth or indium. The replaceable metal anode can be used as a universal energy storage unit that produces electricity as the anode of a metal-air battery or hydrogen as the anode of a hydrogen-on-demand generator.
摘要:
Provided is high purity cobalt chloride having a purity of 5N (99.999%) or higher, and a manufacturing method of the high purity cobalt chloride via electrolysis, wherein cobalt having a purity of 5N or higher is used as an anode, a diluted hydrochloric acid bath having a pH of 1.5 to 3.0 is used as an electrolytic solution, the cobalt anode and a cathode plate are partitioned with an anion exchange membrane, and electrodeposition of the cobalt onto the cathode plate is thereby inhibited. An object of this invention is to provide a manufacturing method capable of providing high purity cobalt chloride at a higher purity and at a lower production cost than conventional methods. Under circumstances where demands for cobalt chloride may increase, cobalt chloride needs to be manufactured at high volume and at low cost, and the present invention offers a technique capable of satisfying the foregoing requirements.
摘要:
A hydrogen generation system includes a signal generation system configured to generate a driver signal, wherein the driver signal is a pulsed DC signal. A signal processing system is configured to process the driver signal and generate a chamber excitation signal. A hydrogen generation chamber is configured to receive the chamber excitation signal and generate hydrogen from a feedstock contained within the hydrogen generation chamber. The hydrogen generation chamber includes: at least one hollow cylindrical anode configured to contain the feedstock, and at least one cathode positioned within the at least one hollow cylindrical anode. The signal processing system includes: a positive reactive circuit coupled to the anode of the hydrogen generation chamber, a negative reactive circuit coupled to the cathode of the hydrogen generation chamber, and a feedback circuit that is configured to couple the cathode of the hydrogen generation chamber to the anode of the hydrogen generation chamber.
摘要:
An oxygen reduction catalyst of an embodiment includes: a stack of single-layer graphenes; and a phosphorus compound, wherein some of carbon atoms of the graphenes are replaced by nitrogen atoms, and the phosphorus compound has a peak of phosphorus 2p orbital of 133.0 to 134.5 eV in X-ray photoelectron spectrum.
摘要:
An electrolytic bath for manufacturing acid water capable of securing sufficient conductivity even in pure water or deionized water without separately using a catalyst or an ion exchange resin, electrolyzing the pure water or deionized water as well as tap water, and particularly minimizing a reaction between ions and a gas through a deaeration effect and an electrolytic effect in one electrolytic process, increasing conductivity of acid water, and enhancing reduction potential and maintenance time of dissolving power, to obtain acid water (hydrogen water) as stable acid reduced water.