Methods and systems which involve separating liquid products are disclosed herein. A disclosed method includes supplying a volume of oxocarbon carbon to a cathode area of an oxocarbon electrolyzer to be used as a reduction substrate, generating a volume of an organic anion using the reduction substrate, and obtaining a liquid stream from the oxocarbon electrolyzer which includes the volume of the organic anion and a volume of a base. The method also includes generating, using a separation process and from the liquid stream, a first stream and a second separate stream. The separation process separates a volume of cations from the liquid stream. The first stream includes a second volume of the base. The second stream includes a volume of organic acid. The volume of organic acid includes the volume of organic anions. The second volume of the base includes the volume of cations.

An electrochemical cell for conversion of methane to methanol includes a bimetallic catalyst having alternating regions of first and second metals thereby providing interfaces at which methane is converted to methanol or formate.

The disclosure provides for methods and systems to create active supramolecular materials by using electrically fueled dissipative assembly, and applications thereof, including in electronic devices.

The disclosure provides for methods and systems to create active supramolecular materials by using electrically fueled dissipative assembly, and applications thereof, including in electronic devices.

An air conditioning system (1) includes a carbon dioxide separation device (20) configured to separate some or all of carbon dioxide from air that contains carbon dioxide, an electrolytic reduction device (30) configured to generate a hydrocarbon and oxygen using the separated carbon dioxide as a raw material, and an oxygen supply amount control device (40) configured to supply some or all of the oxygen generated by the electrolytic reduction device (30) to a space to be processed (10).

An air conditioning system (1) includes a carbon dioxide separation device (20) configured to separate some or all of carbon dioxide from air that contains carbon dioxide, an electrolytic reduction device (30) configured to generate a hydrocarbon and oxygen using the separated carbon dioxide as a raw material, and an oxygen supply amount control device (40) configured to supply some or all of the oxygen generated by the electrolytic reduction device (30) to a space to be processed (10).

A process for converting carbon dioxide into a carbon-based molecule catalyzes a direct-conversion reaction of a vapor-fed flow of the carbon dioxide to the carbon-based molecule using a tandem electrocatalyst integrated with the gas diffusion electrode. The tandem electrocatalyst is a nanostructure composed of two parts: a copper or a copper-based binary or ternary alloy, and a metal center coordinated to nitrogen-doped carbon (NC) or a NC containing macrocyclic organic compound. In one specific implementation, the tandem electrocatalyst consists of copper and nickel-coordinated nitrogen-doped carbon (NiNC), and the carbon-based molecule is ethylene. The copper or copper-based binary or ternary alloy may be in the form of nanoparticles, nanocubes, nanotubes, nanoflowers, nanorods, or nanoplates. The metal center coordinated to nitrogen-doped carbon (NC) or to a NC containing macrocyclic organic compound may be in the form of nanoflowers, nanotubes, nanocages, mesopores, macropores, nanofibers, nanospheres, or other nanostructure.

A process for converting carbon dioxide into a carbon-based molecule catalyzes a direct-conversion reaction of a vapor-fed flow of the carbon dioxide to the carbon-based molecule using a tandem electrocatalyst integrated with the gas diffusion electrode. The tandem electrocatalyst is a nanostructure composed of two parts: a copper or a copper-based binary or ternary alloy, and a metal center coordinated to nitrogen-doped carbon (NC) or a NC containing macrocyclic organic compound. In one specific implementation, the tandem electrocatalyst consists of copper and nickel-coordinated nitrogen-doped carbon (NiNC), and the carbon-based molecule is ethylene. The copper or copper-based binary or ternary alloy may be in the form of nanoparticles, nanocubes, nanotubes, nanoflowers, nanorods, or nanoplates. The metal center coordinated to nitrogen-doped carbon (NC) or to a NC containing macrocyclic organic compound may be in the form of nanoflowers, nanotubes, nanocages, mesopores, macropores, nanofibers, nanospheres, or other nanostructure.

Methods and systems for functionalizing polymers using a multistage packed bed reactor and transition metal oxide catalysts. A slurry comprising a mixture of plastic particles and a carrier fluid flows through the multistage packed bed reactor, which includes one or more catalyst beds containing metal oxide catalysts such as CuO, Cu.sub.2O, NiO, Fe.sub.2O.sub.3, MnO.sub.2, COO, CrO, VO, transition metal oxides, and combinations thereof. An applied potential between the anode and cathode of the reactor generates in-situ metal oxide catalysts, promoting the introduction of functional groups, including CO, CC, CO, and OH bonds to create functionalized polymers. The functionalized polymers exhibit enhanced chemical reactivity and are suitable for various applications, including biomedical uses and membrane analytical devices. The process also allows catalyst recovery through electrodeposition, enabling sustainable and efficient plastic upcycling into high-value products.

Methods and systems for functionalizing polymers using a multistage packed bed reactor and transition metal oxide catalysts. A slurry comprising a mixture of plastic particles and a carrier fluid flows through the multistage packed bed reactor, which includes one or more catalyst beds containing metal oxide catalysts such as CuO, Cu.sub.2O, NiO, Fe.sub.2O.sub.3, MnO.sub.2, COO, CrO, VO, transition metal oxides, and combinations thereof. An applied potential between the anode and cathode of the reactor generates in-situ metal oxide catalysts, promoting the introduction of functional groups, including CO, CC, CO, and OH bonds to create functionalized polymers. The functionalized polymers exhibit enhanced chemical reactivity and are suitable for various applications, including biomedical uses and membrane analytical devices. The process also allows catalyst recovery through electrodeposition, enabling sustainable and efficient plastic upcycling into high-value products.