Alerta

LIGHT-WATER-REACTOR (LWR) NUCLEAR COGENERATION PLANT AND HIGH-TEMPERATURE WATER ELECTROLYSIS SYSTEM(S) FOR PRODUCING HYDROGEN USING HEAT FROM THE LWR

Absstract of: WO2024133496A1

The subject matter of the invention is essentially that of obtaining an indirect optimal thermal coupling between a nuclear reactor and a production unit for producing hydrogen by high-temperature electrolysis by means of a suitably chosen draw-off tap downstream of the high-pressure body of the Rankine cycle turbine of the nuclear reactor, which will transfer the heat thus drawn off by means of a closed loop between an intermediate heat exchanger and a coupling steam generator to liquid water supplied to the production unit in order to inject steam at a high temperature required to perform the electrolysis. This indirect heat input may be carried out continuously or at a decreasing rate until there is enough heat produced by the electrolysis reaction.

SOC STACK COMPRISING COMBINED FLOW DISTRIBUTOR AND CONTACT ENABLER

Absstract of: CN120476486A

A solid oxide cell stack has a combined flow distributor and contact enabler made of a pressed metal foil with diversion structures and contact regions between interconnect layers and cell layers in the stack.

SOC STACK COMPRISING COMBINED FLOW DISTRIBUTOR AND CONTACT ENABLER

Absstract of: CN120476486A

A solid oxide cell stack has a combined flow distributor and contact enabler made of a pressed metal foil with diversion structures and contact regions between interconnect layers and cell layers in the stack.

PROCESS FOR PRODUCING SYNTHESIS GAS PRODUCT COMPRISING HYDROGEN

Absstract of: WO2024132579A1

A process for producing a synthesis gas product comprising hydrogen from an endothermic cracking reaction of an ammonia feedstock stream, comprising the following steps: - Providing an ammonia feedstock stream, - Performing a catalytic conversion by catalytically converting the ammonia feedstock stream by cracking endothermically said ammonia feedstock stream into a synthesis gas product comprising hydrogen, - Performing heat exchanges step by performing heat exchanges between the synthesis gas product and the catalytic conversion of the ammonia feedstock stream, said heat exchanges step comprising the following steps: • Discharging the synthesis gas product in a synthesis gas product circulation duct, said duct being arranged for the heat exchanges between the discharged synthesis gas product and the catalytic conversion of the ammonia feedstock stream, • Recovering heat from the discharged synthesis gas product, • Directing the recovered heat to the catalytic conversion of the ammonia feedstock stream.

ELECTROCHEMICAL REACTOR AND METHOD FOR OPERATING AN ELECTROCHEMICAL REACTOR

Absstract of: CN120418995A

The invention relates to an electrochemical reactor (1), in particular a redox flow cell, a fuel cell, an electrolytic cell or an electrosynthesis cell, comprising a stack (Z) consisting of a plurality of cells (2) which are separated from each other by at least one bipolar plate (3) and are stacked in a stacking direction (R), wherein the cells (2) each have two electrodes (5, 6) and a separator (10) arranged between the two electrodes (5, 6), and wherein the at least one bipolar plate (3) is flexible. In order to be able to increase mass transfer and material distribution with low construction and equipment investment and low material load, an oscillator (13) which excites at least one bipolar plate (3) to generate oscillations is integrated in the bipolar plate (3).

CONTROLLABLE RECTIFIER ARRANGEMENT FOR HYDROGEN ELECTROLYSIS

Absstract of: WO2024130276A1

The invention relates to a rectifier arrangement for hydrogen electrolysis, comprising a transformer (1) with a primary winding (2) for connecting an input alternating voltage and a secondary winding (3) for providing an output alternating voltage, and comprising a rectifier (4) connected to the secondary winding (3) for generating an output direct current IDC and an output direct voltage UDC, wherein at the primary winding (2) of the transformer (1) a number N > 1 of winding taps (5) are provided, and a load stage switch (6) connected to a controller (7) is provided which is designed for switching the winding taps (5) without interruption such that the transformation ratio of the transformer (1) can be switched via the controller (7) in N stages.

ELECTROLYTE COMPRISING SOLVENT WITH LOW POLARITY AND METHOD OF PREPARING ELECTROCHEMICAL LITHIUM- MEDIATED AMMONIA USING THE SAME

Absstract of: US2025327193A1

Disclosed is a electrolyte comprising solvent with low polarity and method of manufacturing electrochemical lithium-mediated ammonia using the same. In detail, an electrolyte comprising a first solvent represented by Structural Formula 1; a second solvent represented by Structural Formula 2; a metal salt; and a proton donor compound. The present disclosure can control the solvation structure through a solvent with low polarity even in a relatively low-concentration electrolyte, thereby constructing a high-performance ammonia production system.

空気直接電解による水素製造システム

Absstract of: EP4582589A1

The present application belongs to the technical field of electrolytic hydrogen production, and particularly relates to a direct air electrolytic hydrogen production system. The system comprises an energy supply module, an electrolytic hydrogen production module, an electrolyte recycling module and a moisture vapor self-trapping module, wherein the energy supply module is connected to the electrolytic hydrogen production module; the electrolytic hydrogen production module comprises an electrolyzer; and the electrolyte recycling module is connected to the electrolytic hydrogen production module and the moisture vapor self-trapping module separately. The system may realize direct air electrolytic hydrogen production, while its energy consumption for electrolysis is comparable to that of industrial pure water electrolysis for hydrogen production, without additional energy consumption for desalination/purification of impure water solutions or for harvesting moisture from the air. The system greatly broadens the range of hydrogen energy sources without time and space limitation, providing technical support for future distributed hydrogen energy arrangement.

一种电极催化剂的制备方法

Absstract of: CN118461035A

The invention provides an electrode catalyst and a preparation method and application thereof, the electrode catalyst comprises a nanosheet catalyst structure, a plurality of holes are formed in the surface of the nanosheet catalyst structure, and the size of the holes is smaller than 80 nm. According to the electrode catalyst and the preparation method and application thereof, electrode catalysts of different structures are obtained, the specific surface area of the electrode catalyst is increased, and active sites are increased, so that the catalytic efficiency is improved, and the production cost is reduced.

水电解系统

Absstract of: US2025333854A1

A water electrolysis system that generates hydrogen and oxygen by electrolysis of water includes a water electrolysis cell including an anode, a cathode, and an electrolyte membrane sandwiched between the anode and the cathode, and a control device that controls electric power supplied to the water electrolysis cell, wherein the control device performs a potential changing process of changing a potential of the anode either or both of upon starting of the water electrolysis system and during continuous operation of the water electrolysis system, and the potential changing process includes a potential lowering process of lowering the potential of the anode to a predetermined potential.

Bimetal monatomic NiCo/NC-TA electrocatalyst and application thereof in electrocatalytic reaction

Absstract of: CN120844136A

The invention belongs to the field of electrocatalysts, and particularly relates to a bimetallic monatomic NiCo/NC-TA electrocatalyst and application of the bimetallic monatomic NiCo/NC-TA electrocatalyst in an electrocatalytic reaction. According to the electrocatalyst, Zn < 2 + > salt serves as main metal salt, Ni < 2 + > salt and Co < 2 + > salt serve as double-doped metal salt, and the main metal salt, the double-doped metal salt and 2-methylimidazole react to form an imidazole zeolite framework; and etching and carbonizing the imidazole zeolite skeleton to obtain the catalyst. According to the preparation method, the NiCo-nitrogen-carbon heteronuclear diatomic catalyst is constructed, and the electronic structure of Co atom sites is remarkably regulated and controlled by using introduced Ni metal atoms, so that the adsorption free energy of a reaction intermediate on the surface of the catalyst is optimized, and the electrocatalytic activity of the catalyst in an oxygen reduction reaction, a hydrogen evolution reaction and an oxygen evolution reaction is remarkably improved; the surface area of the catalyst is increased by etching, and more active sites are effectively exposed, so that the ORR, HER and OER processes are promoted.

Method for degrading garbage by using hot alkali liquor and cooperatively reducing energy consumption of electrolytic hydrogen production

Absstract of: CN120844096A

The invention discloses a method for degrading garbage with hot alkali liquor and cooperatively reducing energy consumption of electrolytic hydrogen production, which comprises the following steps: crushing household garbage until the maximum particle size is less than 5mm to obtain a product A; the product A in unit mass is put into a constant-temperature heating tank containing an alkaline solution with the concentration being 1-8 mol/L and the temperature being 80-100 DEG C, the mass ratio of the product A to the alkaline solution is 1: 10, and after 5 h, a product B is obtained; injecting the product B into an anode chamber and a cathode chamber on the two sides of the diaphragm of the electrolytic cell, and circulating the product B in the electrolytic cell and the constant-temperature heating tank; electrifying an anode material in the anode chamber of the electrolytic cell and a cathode material in the cathode chamber to generate hydrogen in the cathode chamber and generate oxygen and oxide in the anode chamber; and after the electrolytic bath starts to be electrified, the product A with the unit mass is put into the constant-temperature heating tank again every 50 hours. The device has the advantages that the efficiency of hydrogen production by alkaline electrolyzed water can be improved and the energy consumption can be reduced while the household garbage is degraded.

Electrolytic tank structure for hydrogen production through water electrolysis

Absstract of: CN120844107A

The invention relates to the technical field of hydrogen production, in particular to a water electrolysis hydrogen production electrolytic bath structure which comprises a seat part, a diaphragm part is mounted on the upper side of the seat part, electrolysis areas are arranged on the left side and the right side of the diaphragm part, each electrolysis area comprises an area frame attached to the diaphragm part, and an electrolysis cavity transversely penetrating through the area frame is formed in the inner side of each area frame. A titanium plate attached to the diaphragm piece is installed on the inner side of the electrolysis cavity, a titanium mesh located on the inner side of the electrolysis cavity is attached to the side, away from the diaphragm piece, of the titanium plate, and a plurality of liquid inlet folding channels which are formed in the inner side of the area frame and are arranged in an L-shaped penetrating mode are arranged on the front side and the rear side of the titanium mesh correspondingly; according to the water electrolysis hydrogen production electrolytic tank structure, through the arrangement of the uniform liquid conveying part, the end plate piece, the electrolysis area and other structures, injected alkali liquor can be evenly distributed in the electrolysis cavity through the water electrolysis hydrogen production electrolytic tank structure, and formation of a dead area is effectively avoided.

Preparation method and application of ruthenium-molybdenum carbide composite material

Absstract of: CN120844117A

The invention discloses a preparation method and application of a ruthenium-molybdenum carbide composite material, Ru clusters and adjacent Ru single atoms are anchored on MoC/C (called Ru1, n/MoC/C), the prepared Ru1, n/MoC/C sample has an ultra-low overpotential of 9mV at 10mA cm <-2 >, the mass activity is 20.38 Amg <-1 > Ru (-100mV), and the conversion frequency (TOF) at 25mV is 1.71 H2s <-1 >, which is superior to 20% Pt/C. In addition, a zinc-water battery taking Ru1, n/MoC/C as a cathode can provide a power density of 22.5 mW cm <-2 >, and the performance of the zinc-water battery is improved. And stable discharge is carried out for 20 hours at 10mA cm <-2 >. The mechanism is that the coupling of Ru single atoms and MoC nanocrystals can further enhance the strong interaction between Ru clusters and MoC, so that the Ru clusters are promoted to present an electron-rich state, the bonding strength between H * and the Ru clusters is weakened under the dual excitation of the Ru single atoms and MoC, and the desorption of H2 is accelerated.

Coupling power generation process for directly synthesizing dimethyl ether through plasma co-gasification

Absstract of: CN120838314A

The invention provides a coupling power generation process for directly synthesizing dimethyl ether through plasma co-gasification. According to the invention, the production process is simplified, the supercritical CO2 Brayton cycle is integrated, and efficient waste heat and power generation recovery is realized. In order to utilize carbon dioxide in waste gas, an alkaline electrolytic cell hydrogen production process and a carbon dioxide hydrogenation methanol process are systematically introduced. Model verification and sensitivity analysis confirm the reliability of the system and reveal the significant influence of key operation parameters on the system performance. The invention provides an innovative path for efficient utilization of biomass and clean production of methanol and dimethyl ether, and effectively balances resource utilization and environmental protection.

PEM membrane tube electrolytic bath and hydrogen production equipment

Absstract of: CN120844108A

The invention relates to the technical field of electrolytic hydrogen production, and discloses a PEM membrane tube electrolytic bath and hydrogen production equipment. The PEM membrane tube electrolytic bath comprises two semicircular tubes, and water vapor small holes and diversion trenches are densely distributed in the tube walls of the two semicircular tubes. After four edges of a layer of metal foil with holes, a layer of gas diffusion layer, a layer of anode catalyst layer, a layer of proton exchange membrane layer, a layer of cathode catalyst layer, a layer of gas diffusion layer and a layer of metal foil with holes are glued and fixed, two semicircular pipes are used for clamping from the upper surface and the lower surface in the middle, and the two semicircular pipes are combined into a cylinder; fixing rings are sleeved at the two ends of the membrane roll to fix the two semicircular tubes and the membrane layer assembly, a layer of non-woven fabric and polyamide are attached to each of the two surfaces of the membrane roll, the periphery of the membrane roll is glued, heat-sealed and fixed, and the polyamide is separated by a polysulfone layer to rotate and wind along the center line of a cylinder synthesized by the two semicircular tubes according to a certain rotating direction to form the membrane layer roll. And finally, mounting upper end covers at two ends of the film roll, and winding a glass fiber reinforced plastic shell on an outer tube to form the PEM

用碳基层涂覆的部件

Absstract of: WO2024189288A1

The invention relates to a part comprising a metal substrate and a layer of material based on amorphous carbon having sp2 hybridised bonds and sp3 hybridised bonds, wherein the layer has: - a first content of sp3 hybridised bonds on the substrate side; and - a second content of sp3 hybridised bonds on the side of an outer surface of the layer; - the first content being greater than the second content, characterised in that an average content within the layer of sp3 hybridised bonds is between 5% and 65%, and preferably between 5% and 45%, and in that the content of sp3 hybridised bonds changes continuously within the layer.

Medium-entropy alloy phosphide/black phosphorene electrocatalyst as well as preparation method and application thereof

Absstract of: CN120844140A

The invention discloses a medium-entropy alloy phosphide/black phosphorene electrocatalyst as well as a preparation method and application thereof, and belongs to the technical field of hydrogen evolution electrocatalysts. The catalyst is prepared by the following steps: carrying out acid pickling treatment on three foam metals (foam nickel, foam cobalt and foam iron), respectively taking black phosphorus crystals as an anode and a cathode, placing the foam metals and the black phosphorus crystals in an electrolytic bath containing propylene carbonate and tetrabutylammonium tetrafluoroborate, and applying 12-20V voltage to realize black phosphorus stripping and metal ion in-situ loading, and carrying out a solvothermal reaction at 160-180 DEG C for 3-4 hours to form a heterostructure. The catalyst is a heterostructure of black phosphorus nanosheet loaded medium entropy alloy phosphide, can efficiently separate hydrogen in alkaline and chloride ion-containing electrolyte, solves the problems of complex process, high cost, poor stability and the like of the existing catalyst, and is simple in process and excellent in performance.

Wind power off-grid hydrogen production system and black start method thereof

Absstract of: CN120855493A

The invention relates to a wind power off-grid hydrogen production system and a black start method thereof, the system comprises a fan side and a hydrogen production side, the fan side comprises a wind driven generator, a machine side converter, a grid side converter, a first direct current bus capacitor, a first transformer, a third switch, a fourth switch and a second filter inductor; the hydrogen production side comprises an electrolytic bath, a second direct current bus capacitor, a second transformer, an alternating current (AC)-direct current (DC) converter, a DC-DC converter, a black start power supply, an inverter, a first switch, a second switch and a first filter inductor; wherein the black-start power supply comprises a hydrogen fuel cell, and a hydrogen fuel source of the hydrogen fuel cell comprises hydrogen produced by the electrolytic cell. Therefore, the system can realize wind power off-grid hydrogen production without additionally arranging any electrochemical energy storage device, so that the safety and greenness of the wind power off-grid hydrogen production system are improved, and the engineering investment and the engineering layout difficulty are remarkably reduced.

Gas diffusion layer with gradient pore structure and preparation method thereof

Absstract of: CN120844109A

The invention discloses a gas diffusion layer with a gradient pore structure and a preparation method of the gas diffusion layer. The preparation method comprises the following steps: 1, immersing a titanium diamond net into liquid paraffin; 2, absolute ethyl alcohol, tributyl phosphate, polyvinyl butyral and two kinds of spherical titanium powder with different granularities are evenly mixed to prepare second slurry containing coarse-grained spherical titanium powder and first slurry containing fine-grained spherical titanium powder, and the second slurry and the first slurry are sequentially sprayed to the surface of the titanium rhombus net filled with paraffin; and 3, degreasing and sintering the sprayed titanium diamond net for one-step forming to obtain the gas diffusion layer with the gradient pore structure. According to the method, the slurry containing the spherical titanium powder with the coarse granularity and the spherical titanium powder with the fine granularity is sequentially sprayed on the titanium diamond net and sintered, the gas diffusion layer with the gradient hole structure is obtained, it is guaranteed that the gas diffusion layer has the high catalyst utilization rate, high mechanical strength and good gas-liquid transmission, and the structure can be adjusted according to the actual working condition so as to regulate and control the performance of the gas diffusion layer; the method is suitable for the field of PEM electrolytic hydrogen production

Network construction type hybrid energy storage configuration and control method of off-network hydrogen production system

Absstract of: CN120855431A

The invention discloses a network construction type hybrid energy storage configuration of an off-network hydrogen production system and a control method thereof, and relates to the technical field of renewable energy hydrogen supply. The system comprises a wind power generation unit, a photovoltaic power generation unit, a net-forming type hybrid energy storage unit, an electrolytic cell unit and a controller. Wind power and photovoltaic power generation are connected to an alternating current bus through a converter, and renewable power is provided for the system. The hybrid energy storage unit is composed of a super capacitor and a lithium battery which are in two-way connection with the alternating current bus through an energy storage converter. And the electrolytic bath is connected with the alternating current bus through the AC/DC converter. In the control method, the frequency stability of the system and the continuity of electrolytic hydrogen production are guaranteed by detecting the frequency of the alternating current bus in real time, setting a frequency modulation dead zone and controlling the super capacitor and the lithium battery to participate in frequency modulation in a time-sharing cooperative manner. The system has fast frequency response capability, network construction operation capability and efficient hydrogen production performance, and is suitable for construction of green hydrogen energy systems in remote areas and in scenes without power grid ac

Biomass carbon material and electrolyzed water catalyst prepared by taking biomass carbon material as substrate

Absstract of: CN120841488A

The invention relates to the technical field of biomass carbon materials and water electrolysis hydrogen production and oxygen evolution, in particular to a biomass carbon material and a water electrolysis catalyst prepared with the biomass carbon material as a substrate. The preparation method comprises the following steps: pre-carbonizing palm leaves, mixing with alkali and water, grinding, carbonizing at high temperature to obtain a biomass carbon material, taking the biomass carbon material as a substrate, growing a metal organic framework compound ZIF-67 in situ on the basis of the biomass carbon material, mixing with dicyandiamide, and annealing in a protective atmosphere to obtain the composite biomass carbon material. The composite biomass carbon material has excellent hydrogen evolution and oxygen evolution performance as a water electrolysis catalyst.

Preparation, use and electrolytic regeneration synergistic hydrogen production method of iron-emodin-biochar composite material for ammonia nitrogen treatment of marsh gas

Absstract of: CN120838373A

The invention discloses preparation and use of an iron-emodin-biochar composite material for ammonia nitrogen treatment of biogas slurry and an electrolytic regeneration synergistic hydrogen production method, and belongs to the technical field of wastewater treatment. The preparation method comprises the following steps: soaking a biomass material with 3wt%-8wt% of HNO3, washing the biomass material with distilled water until the biomass material is neutral, and drying the biomass material until the weight of the biomass material is constant; the preparation method comprises the following steps: dissolving emodin in a NaOH solution, and carrying out ultrasonic assisted dissolution; the preparation method comprises the following steps: dissolving FeCl3 in deionized water; mixing the two solutions according to the molar ratio of ferric ions to emodin of (1-2): 1, and adjusting the pH value to 4-5; adding a biomass material into the mixed impregnation liquid, oscillating and impregnating for 6-24 hours, collecting a solid by using a filter membrane, washing with ethanol, and drying; and washing with HCl to remove free Fe < 3 + >, washing to be neutral, pyrolyzing under the protection of inert gas, and cooling. The material disclosed by the invention has a specific surface area of 420 +/-15 m < 2 >/g and a stable Fe-O-C structure, the adsorption capacity of the material to ammonia nitrogen of biogas slurry under the condition that the pH is 9-10 reaches 35.6 mg/g, th

/ Quaternized polyphenylene oxide/polyvinyl alcohol composition anion exchange membrane and its preparation method

Absstract of: KR20250154086A

본 발명은 향상된 수분흡수율 및 화학적 안정성을 갖는 우수한 이온전도성 고분자 조성물로, 사차화된 폴리페닐렌 옥사이드(QPPO: quaternized polyphenylene oxide)와 폴리비닐알콜(PVA: polyvinyl alcohol)를 포함하는 고분자 조성물, 상기 고분자 조성물을 포함하는 이오노머 주조 방법 및 이를 활용한 음이온교환막에 관한 것이다.

전기화학 전지 스택

Nº publicación: KR20250154491A 28/10/2025

Applicant:

섀플러테크놀로지스아게운트코카게

Absstract of: WO2024183850A1

An electrochemical cell stack (1) comprises a plurality of cells (2), which are separated from one another by bipolar plates (5, 5'), wherein each cell (2) is formed from two half-cells (3, 4) between which a membrane (6), surrounded by a support frame (7), is arranged, and wherein there is a porous transport layer (10, 11) in each half-cell (3, 4). The support frame (7) describes a stepped shape with two adjacent cross-section regions (12, 13), wherein an edge (18) of the membrane (6) lies in a step (17) formed by the cross-section regions (12, 13) and the porous transport layer (10) of a half-cell (3) extends into the step (17), and wherein the support frame (7) comprises at least one sealing arrangement (15) which is injection-moulded onto the support frame (7) and comprises an electrically insulating sealing material, wherein the sealing arrangement (15) comprises three sealing regions (19, 20, 21) each having at least one sealing lip (22, 22'), specifically a first sealing region (19) and a second sealing region (20) which are assigned to the narrower of the two cross-section regions (12, 13) facing the membrane (6) and each of which contact exactly one bipolar plate (5, 5'), and a third sealing region (21) which is on a side of the support frame (7) facing away from the step (17) and borders an opening (9) of the support frame (7) provided for the guiding through of media, and contacts both bipolar plates (5, 5') to which the first and the second sealing region (19, 20)