A wind turbine is provided including a generator, an electrolytic unit, a system inlet and a system outlet, wherein the electrolytic unit is electrically powered by the generator to produce hydrogen from an input fluid, in particular water, wherein the hydrogen produced can be taken out of the wind turbine by the system outlet, wherein the wind turbine further includes a safety system controlled by a control unit configured to evacuate the hydrogen out of the wind turbine) by a plurality of gas outlets distributed on a platform of the wind turbine and configured to release the hydrogen to the atmosphere.

An offshore wind turbine erected in a body of water includes a generator, a foundation, a nacelle, a tower having a first end mounted to the foundation and a second end supporting the nacelle, an electrolytic unit arranged above a water level and electrically powered by the generator to produce hydrogen from an input fluid, in particular water, and a fluid supply assembly for supplying the input fluid from a fluid inlet arranged below the water level to the electrolytic unit by means of a fluid connection, wherein the fluid supply assembly includes a cleaning unit configured to clean a build-up formed along an area extending through the inner part of at least a part of the fluid connection or formed at the fluid inlet.

An offshore wind turbine erected in a body of water includes a generator, a foundation, a nacelle, a tower having a first end mounted to the foundation and a second end supporting the nacelle, an electrolytic unit arranged above a water level and electrically powered by the generator to produce hydrogen from an input fluid, in particular water, and a fluid supply assembly for supplying the input fluid from a fluid inlet arranged below the water level to the electrolytic unit by means of a fluid connection, wherein the fluid supply assembly includes a cleaning unit configured to clean a build-up formed along an area extending through the inner part of at least a part of the fluid connection or formed at the fluid inlet.

An electrolysis element for alkaline water electrolysis includes: an electroconductive separating wall including a first face and a second face; an anode for generating oxygen; a cathode for generating hydrogen; a first connecting means fixing the anode to the separating wall such that the anode faces the first face of the separating wall at a first distance, and electrically connecting the anode to the separating wall; an electroconductive elastic body supporting the cathode; and a cathode current collector supporting the elastic body, the cathode current collector being fixed to the separating wall, to face the second face of the separating wall at a second distance, and being electrically connected to the separating wall, the first connecting means including: an electroconductive bolt including at least a shaft, wherein the anode is removably fixed to the separating wall by means of the electroconductive bolt.

An electrolysis element for alkaline water electrolysis includes: an electroconductive separating wall including a first face and a second face; an anode for generating oxygen; a cathode for generating hydrogen; a first connecting means fixing the anode to the separating wall such that the anode faces the first face of the separating wall at a first distance, and electrically connecting the anode to the separating wall; an electroconductive elastic body supporting the cathode; and a cathode current collector supporting the elastic body, the cathode current collector being fixed to the separating wall, to face the second face of the separating wall at a second distance, and being electrically connected to the separating wall, the first connecting means including: an electroconductive bolt including at least a shaft, wherein the anode is removably fixed to the separating wall by means of the electroconductive bolt.

Methods and systems related to the field of electrolyzers are disclosed. An electrolyzer assembly is disclosed which includes a stack of cells, a plurality of polar plates in the stack of cells, a plurality of flow fields between the plurality of polar plates, a conduit fluidly connecting flow fields in the plurality of flow fields, an electrically conductive fluid in the conduit, a plurality of insulating layers arranged between a conductive surface of the plurality of flow fields and the conduit, and a plurality of openings in the plurality of insulating layers providing a plurality of fluid connections between the conduit and the plurality of flow fields.

A cathode electrode for a gas diffusion electrolytic flow cell that produces a carbon dioxide reduction product by reducing carbon dioxide, wherein the cathode electrode comprises a catalyst layer having a metal complex catalyst, a carbon material and an alkali metal salt, and a gas diffusion layer disposed on the catalyst layer.

A polymer electrolyte membrane (PEM) electrolytic cell assembly, and a method for making the assembly, are provided. An exemplary method includes forming a functionalized zeolite templated carbon (ZTC), including forming a CaX zeolite, depositing carbon in the CaX zeolite using a chemical vapor deposition (CVD) process to form a carbon/zeolite composite, treating the carbon/zeolite composite with a solution including hydrofluoric acid to form a ZTC, and treating the ZTC to add catalyst sites, forming the functionalized ZTC. The method further includes incorporating the functionalized ZTC into electrodes, forming a membrane electrode assembly (MEA), and forming the PEM electrolytic cell assembly. The method further includes coupling the PEM electrolytic cell assembly to a heat source.

A polymer electrolyte membrane (PEM) electrolytic cell assembly, and a method for making the assembly, are provided. An exemplary method includes forming a functionalized zeolite templated carbon (ZTC), including forming a CaX zeolite, depositing carbon in the CaX zeolite using a chemical vapor deposition (CVD) process to form a carbon/zeolite composite, treating the carbon/zeolite composite with a solution including hydrofluoric acid to form a ZTC, and treating the ZTC to add catalyst sites, forming the functionalized ZTC. The method further includes incorporating the functionalized ZTC into electrodes, forming a membrane electrode assembly (MEA), and forming the PEM electrolytic cell assembly. The method further includes coupling the PEM electrolytic cell assembly to a heat source.

A method for controllably making catalysts with at least one metallic surface state, that includes: a) identifying all the topological insulators in the ICSD, b) calculating the Real Space Invariants of the valence bands for all these topological insulators in order to c) identify in all these topological insulators the Wyckoff Positions where the irreducible Wannier Charge Centers (WCCs) are localized, and then d) selecting as potentially catalytic active compound a topological insulator in which the position of WCCs is not occupied by any atom; e) synthesizing a crystal of the selected potentially catalytic active compound either so that it is grown in a predefined crystallographic direction (characterized by its Miller indices (h,k,l)) which exposes the metallic surface state; or cutting the crystal in a predefined crystallographic direction (characterized by its Miller indices (h,k,l)), so that the metallic surface state is exposed when

[00001]$\left(\left(\{\begin{array}{c}\left(h,k,l\right).Math.\left(x-X_j,y-Y_j,z-Z_j\right)=0,\\ \left(h,k,l\right).Math.\left(x-x_i,y-y_i,z-z_i\right)\ne 0,\\ h,k,lϵZ\end{array}\right)\right)$