The present invention relates to a photo-electrochemical device for production of a gas, liquid or solid using concentrated electromagnetic irradiation. The device comprises a photovoltaic component configured to generate charge carriers from the concentrated electromagnetic irradiation; and an electrochemical component configured to carry out electrolysis of a reactant. The photovoltaic component contacts the electrochemical component at a solid interface to form an integrated photo-electrochemical device; and further includes at least one reactant channel or a plurality of reactant channels extending between the photovoltaic component and the electrochemical component to transfer heat and the reactant from the photovoltaic component to the electrochemical component. The integrated photo-electrochemical device and auxiliary devices (such as concentrator, flow controllers) build a system which can flexibly react to changes in operating condition and guarantee best performance.

The invention relates to an electrolysis device and method for producing molecular hydrogen, the device comprising a negative electrode compartment for reducing H2O into H2 and a positive electrode compartment comprising circulating supercapacitive particles in contact with a conductive substrate. Such a device or method advantageously comprises a power supply provided by one or more photovoltaic cells.

The invention relates to an electrolysis device and method for producing molecular hydrogen, the device comprising a negative electrode compartment for reducing H2O into H2 and a positive electrode compartment comprising circulating supercapacitive particles in contact with a conductive substrate. Such a device or method advantageously comprises a power supply provided by one or more photovoltaic cells.

A dissolvable engineered component fabricated using an aluminum-based nanogalvanic alloy and a method of manufacturing such a dissolvable engineered component.

A dissolvable engineered component fabricated using an aluminum-based nanogalvanic alloy and a method of manufacturing such a dissolvable engineered component.

Membrane assemblies for electrochemical devices are provided, along with methods and system for fabricating them. Membrane assemblies comprise anode layer(s) and cathode layer(s), separated by membranous separation layer(s) and all embedded in continuous polymerized ionomer material. In production, during continuous deposition of ionomer material on a substrate (e.g., by electrospinning or electrospraying), consecutive deposition stages of catalyst material and optionally binder material are performed. For example, anode particles, binder material and cathode particles may be deposited (e.g., by electrospraying or electrospinning, respectively) consecutively during the continuous deposition o the ionomer material. Self-refueling power-generating system are provided, which include reversible anion exchange membrane devices with disclosed membrane assemblies.

The present invention is related to the electrochemical conversion of CO.sub.2 and provides the use of Gas Diffusion Electrode with an aprotic solvent in such conversion of CO.sub.2 as well as an electrochemical cell for use in such conversion. The application and electrochemical cell as herein provided are particularly useful in the conversion of CO2 into oxalate/oxalic acid.

The present invention is related to the electrochemical conversion of CO.sub.2 and provides the use of Gas Diffusion Electrode with an aprotic solvent in such conversion of CO.sub.2 as well as an electrochemical cell for use in such conversion. The application and electrochemical cell as herein provided are particularly useful in the conversion of CO2 into oxalate/oxalic acid.

Processes and systems for electrochemical exfoliation that use a compression reactor and, more particularly, to processes and systems for electrochemical exfoliation of planar parent materials, such as graphite. A reactor for electrochemical exfoliation may include a container configured to hold an electrolyte solution. The reactor may further include a porous chamber, wherein the porous chamber is configured to hold a parent material in fluid communication with the electrolyte solution. The reactor may further include a pressure source positioned to apply a pressure along a length of the porous chamber to thereby compress the parent material in the porous chamber. The reactor may further include a first counter electrode. The reactor may further include a working electrode. The reactor may further include an electrical power source in electrical communication with the first counter electrode and the working electrode.

Processes and systems for electrochemical exfoliation that use a compression reactor and, more particularly, to processes and systems for electrochemical exfoliation of planar parent materials, such as graphite. A reactor for electrochemical exfoliation may include a container configured to hold an electrolyte solution. The reactor may further include a porous chamber, wherein the porous chamber is configured to hold a parent material in fluid communication with the electrolyte solution. The reactor may further include a pressure source positioned to apply a pressure along a length of the porous chamber to thereby compress the parent material in the porous chamber. The reactor may further include a first counter electrode. The reactor may further include a working electrode. The reactor may further include an electrical power source in electrical communication with the first counter electrode and the working electrode.