48 results about "Proton conductor" patented technology

The invention discloses a simple preparation method of a barium-based metal organic framework (Ba-H2Sip) and proton conduction application of the barium-based metal organic framework (Ba-H2Sip), belongs to the field of functional material synthesis and energy application, and is characterized in that functional differentiation design of a 5-sulfoisophthalic acid ligand: a sulfonic group forms a two-dimensional layered structure by chelating Ba < 2 + >; the carboxyl groups are differentiated into'anchoring carboxyl groups' for constructing a three-dimensional supramolecular skeleton and'proton supply carboxyl groups' for providing a proton source, and the design is reported for the first time in Ba-based MOFs; according to the present invention, the large-scale preparation can be achieved by stirring the low-cost raw material in 1 mol / L hydrochloric acid at the room temperature, the yield exceeds 70%, the product can resist 8 M acid and pH = 13 alkali liquid, the conductivity at 90 DEG C / 90% humidity can achieve 1.39 * 10 <-2 > Scm <-1 >, the high-temperature process is not required, the raw material is low in cost and easy to obtain, and the feasible scheme is provided for the high-efficiency proton conductor industrialization.

Provided is a catalyst layer in which power generation performance is improved even in a high output power region (high current density region). A cathode catalyst layer (5) and an anode catalyst layer (6) for a membrane-electrode assembly of a solid polymer fuel cell, the cathode catalyst layer (5) and the anode catalyst layer (6) containing catalyst particles (1), an electrically conductive carrier (2), a polymer electrolyte (3), and a fibrous substance (4), the fibrous substance (4) containing at least one of an electron conductor and a proton conductor, the specific surface area of the fibrous substance (4) being in a range of 40 m 2 / g or more and 80 m 2 / g or less.

This membrane electrode assembly comprises: a proton conductor (10); and a catalyst layer (20) that is provided so as to sandwich the proton conductor and that is joined to the proton conductor. Provided to the proton conductor is a recessed-and-protruding section (12) where portions of the catalyst layer penetrate a catalyst bonding surface (11) to which the catalyst layer is bonded.　In the catalyst layer, a region where the proton transport resistance increases proportionally with separation from the catalyst bonding surface is defined as a high-resistance region (HA). Furthermore, in the catalyst layer, a region where the proton transport resistance is smaller than that of the high-resistance region and the degree of increase in the proton transport resistance accompanying separation from the catalyst bonding surface is smaller than that of the high-resistance region is defined as a low-resistance region (LA). As a result, the dimensions of at least the recessed-and-protruding section are set such that the proportion of the entire catalyst layer occupied by the low-resistance region is larger than when the catalyst bonding surface is a flat surface having no recesses or protrusions.

This invention discloses a preparation process for paper boxes used for food preservation and the resulting food preservation paper box, belonging to the field of packaging product technology. This invention constructs a dynamic covalent bond gradient interface and forms a strong anchoring-weak cohesive gradient structure by regulating the binding energy between fibers and functional layers, achieving a low fiber damage rate after multiple paper box cycles. A functional adaptation layer is simultaneously applied at the outlet of the paper machine's drying section, utilizing the water layer adsorbed on the fiber surface to achieve synergistic anchoring of interpenetrating network physical entanglement and chemical grafting. The core paper is micro-injected using hot press rollers, with molten chitosan-PEG graft material encapsulating softened PLA particles at 130°C, rapidly forming a mechanical interlocking structure within 2 seconds. Multi-scale synergistic slow release is achieved through spatial separation of modular slow-release tablets and electrostatically flocked citric acid. When humidity is triggered, water acts as a proton conductor at the interface, avoiding pre-reaction. Diatomaceous earth channels adsorb some NaClO2, forming a secondary release reservoir and extending the peak release time.

A proton conductor gas sensor (2) includes an MEA (20), a diffusion control plate (6), a filter and a housing. The diffusion control plate (6) is provided with a disc-shaped protrusion (22) which protrudes toward the opposite side of the MEA with the diffusion control port (24) as the center, and a gap (26) is formed between the protrusion (22) and the MEA (20). The effect is that the output deviation of the proton conductor gas sensor is reduced.

A proton conductor gas sensor includes a membrane electrode assembly (“MEA”); a diffusion control plate; a filter; and a housing. The diffusion control plate is provided with a protrusion with a diffusion control hole at the center and raising towards the opposite side to the MEA. A gap is present between the protrusion and the MEA. The output variance among proton conductor gas sensors is reduced by the protrusion.

The invention discloses a proton conductor solid oxide battery composite electrode material and application, and belongs to the technical field of solid oxide batteries (SOC), the composite electrode material is formed by compounding a La0. 6Ca0. 4Fe0. 8Co0. 1Ni0. 1O3-delta (short for LCFCN) material with a perovskite structure and a BaZr0. 4Ce0. 4Y0. 1Yb0. 1O3-delta (short for BZCYYb) material according to a mass ratio of 7: 3, and the composite electrode material is named as an LCFCN-BZCYYb composite electrode material. Wherein the LCFCN is prepared by adopting a sol-gel method, the particle size of the LCFCN is concentrated at 350-450 nm, the average thermal expansion coefficient of the LCFCN is 13.4 * 10 <-6 > / K, and the LCFCN is excellently matched with a BZCYYb electrolyte; and meanwhile, the LCFCN has an electron-oxygen ion-proton triple conduction characteristic. The composite electrode material is used as an H-SOC cathode and is matched with a BZCYYb electrolyte and a NiO anode to form a battery, the maximum output power density of the battery can reach 1.13 W / cm < 2 > at the working temperature of 700 DEG C, the ohmic impedance is as low as 0.11 ohm cm < 2 >, the problems that existing cobalt-based, strontium-based and nickel-based cathode materials are mismatched in thermal expansion, high in impedance, poor in stability and the like are effectively solved, and the service life of the battery is prolonged. And the electrochemical performance and the long-term operation reliability of the H-SOC are remarkably improved.

This invention relates to a proton conductor ceramic direct ammonia fuel cell and its preparation method. The fuel cell includes an electrolyte layer and a cathode and an anode located on opposite sides of the electrolyte layer. The anode has a gradient anode structure composed of an anode functional layer, an anode support layer, and a high-entropy alloy anode catalyst layer. The cathode is made of BCFZY, the electrolyte layer is made of BZCYYb, and both the anode support layer and the anode functional layer are NiO-BZCYYb composite materials. The high-entropy alloy anode catalyst layer is a porous FeCoNiCu-based structure formed by dealloying a FeCoNiCuAl precursor alloy. This invention effectively solves the technical bottlenecks of easy nitriding deactivation of Ni-based anodes and low catalytic efficiency in ammonia decomposition and nitrogen reduction reactions in existing proton conductor ceramic direct ammonia fuel cells. The high-entropy alloy catalyst layer significantly inhibits the formation of metal nitrides through the synergistic effect of multiple components, while optimizing the surface electronic structure and catalytic site distribution, thus greatly improving the catalytic activity of non-noble metals.

The present application relates to the technical field of solid oxide electrolysis cell, and particularly relates to a mixed ionic conductor solid oxide electrolysis cell, a preparation method thereof and application thereof in synergic electrolysis of CO2-H2O. The present application uses mixed proton conductor electrolyte and oxygen ion conductor electrolyte as electrolyte material, so that the system has oxygen ion and proton conduction capacity. CO2 and H2O are introduced as co-reactants on the two sides of the electrode in the same electrolysis device, so as to realize the coupling reaction of CO2 reduction at the fuel electrode and H2O electrolysis at the air electrode, directly generate synthesis gas (CO+H2) with adjustable proportion, and at the same time, the fuel electrode realizes reverse water gas shift reaction (RWGS), thereby improving CO2 conversion efficiency and regulating synthesis gas composition, realizing synchronous improvement of CO2 resource utilization and energy conversion efficiency.

The invention relates to the technical field of hydrogen production by hydrogen sulfide, and discloses a method and system for producing hydrogen by electrolyzing hydrogen sulfide, and the method comprises the following steps: respectively introducing hydrogen sulfide and hydrogen into an electrolytic tank, and carrying out electrolytic reaction to obtain hydrogen and sulfur; wherein the electrolytic tank comprises a solid electrolyte layer, the solid electrolyte layer divides the electrolytic tank into an anode chamber and a cathode chamber, the anode chamber comprises an anode, and the cathode chamber comprises a cathode; the anode comprises a perovskite oxide anode material and a first proton conductor; the solid electrolyte layer comprises a second proton conductor; the first proton conductor and the second proton conductor are respectively selected from perovskite type proton conductors. According to the invention, the proton conductor is creatively used in the electrolysis device for H2S electrolytic hydrogen production, the hydrogen production characteristics of high efficiency, stability and low energy consumption can be realized, and high-efficiency hydrogen production and sulfur co-production are realized.

To provide a solid proton conductor having good proton conductivity in a medium temperature range of 100°C to 250°C under a non-humidified condition, a manufacturing method of the same, an electrolyte membrane for a fuel cell containing the solid proton conductor, and a fuel cell.SOLUTION: A solid proton conductor 1 according to the present invention includes a composite material including a particle portion 2 made of an inorganic oxide, and a covering portion 3 covering at least a portion of the particle portion 2 and containing a salt formed by a nitrogen atom-containing heterocyclic ring-containing compound and an acid, and the inorganic oxide is preferably at least one selected from SiO2, TiO2, SnO2, ZrO2, MnO2, WO3, and Al2O3.SELECTED DRAWING: Figure 1

The invention belongs to the technical field of new energy materials and electrochemical devices, and particularly relates to a metal-supported proton conductive solid oxide fuel half cell and a preparation method thereof. The half cell comprises a metal supporting layer, a transition layer, an anode functional layer and an electrolyte layer, wherein the metal supporting layer is formed by reducing NiO and MgO and has a gradient pore structure; the transition layer is made of a BaZr < 0.3 > Ce < 0.5 > Y < 0.2 > O < 3-delta > proton conductor material; the anode functional layer is made of a NiO-BZCY metal ceramic composite material; through the NiO-MgO composite support body design and the gradient transition layer structure, the high power density of 0.85 W / cm < 2 > and the low polarization resistance of 0.08 omega.cm < 2 > are achieved at the temperature of 400-650 DEG C, the metal / ceramic interface matching problem is solved through the casting-co-firing-controllable reduction technology, the thermal cycle life breaks through 500 times, and large-scale preparation of a 20 cm * 20 cm large-size battery is achieved.

The invention discloses a ceramic fiber electrolyte material in a continuous one-dimensional form and a preparation method of the ceramic fiber electrolyte material. The electrolyte material is perovskite type BaY < 0.1 > Zr < 0.9 > O < 3-delta > in a one-dimensional nano array structure. The proton conductor prepared by the method can realize rapid transportation of protons, so that the problem of low proton mobility of an existing ceramic fuel cell under medium and low temperature conditions is solved, a proton conductor material is designed from the perspective of ceramic fibers, and a continuous one-dimensional ceramic fiber material with a perovskite structure is prepared. And a'high-speed channel 'for proton transmission is constructed, so that rapid migration of protons in a proton conductor at medium and low temperatures is realized, and the electrochemical performance of the fuel cell at medium and low temperatures is greatly improved.

This invention relates to a method for preparing a proton exchange membrane for water electrolysis and fuel cells, and its application, belonging to the technical field of proton exchange membrane materials. First, a main chain containing an arylpyridine polymer is prepared. Then, diamine-functionalized graphene oxide is introduced into the side chain. Next, cesium salts of heteropoly acids are doped during membrane fabrication. The main chain of the exchange membrane of this invention uses an arylpyridine polymer, which has excellent alkali resistance and a simple synthesis method and process. The side chain contains diamine-functionalized graphene oxide, and the doping of cesium salts of heteropoly acids within the membrane provides strong mechanical strength and proton conductor adsorption sites, effectively improving ionic conductivity and reducing acid loss during operation. The proton exchange membrane prepared by this invention is applied to high-temperature water electrolysis and medium-high temperature fuel cells.

The invention relates to a hydrogen bond organic framework proton conductor based on a rigid-flexible assembly, a preparation method and application, and the method comprises the steps: S1, selecting a first compound, and dissolving the first compound in a first solvent to obtain a first solution, the first compound being a linear alkyl sulfonic acid compound; s2, selecting a second compound, and dissolving the second compound in a second solvent to obtain a second solution, the second compound being an amino aromatic compound; and S3, mixing the first solution with the second solution, standing, volatilizing and crystallizing to obtain the hydrogen bond organic framework proton conductor. According to the technical scheme, the first compound representing the flexible material building unit and the second compound representing the rigid material building unit are self-assembled through the charge-assisted hydrogen bond, so that the hydrogen bond organic framework proton crystal constructed by the scheme has higher purity and better performance of various parameters; and particularly, the conductivity of the conductor is better.

The application relates to the field of proton ceramic fuel cells, and provides a high-performance proton ceramic fuel cell heterogeneous structure cathode material and a preparation method thereof. 2‑ x Zr x O 5+δ , wherein Ln=La, Pr, Sm, Gd or Eu, 0.04<=x<=0.5, and delta is the non-stoichiometry of oxygen. The cathode material provided by the application comprises: a substrate (Ln 1 / (2‑x) Ba (1‑x) / (2‑x) )2Co2O 5+δ and BaZrO3 nanoparticles precipitated and anchored on the surface of the substrate. The material LnBaCo2O 5+δ is doped with element Zr at the B site, so that the BaZrO3 nanoparticles are in-situ desolvated and anchored on the surface of the substrate in a high-temperature oxidizing atmosphere, forming an ion-electron mixed conductor and a proton conductor heterogeneous structure, which makes the nano-composite cathode material have a triple electric conduction (oxygen ion-proton-electron) reaction region, also has good oxygen reduction catalytic activity, excellent chemical and structural stability, and is a universal method for preparing excellent proton ceramic fuel cell cathode materials.

The invention relates to a proton conductor solid oxide battery with a double-phase high-entropy fuel electrode. The proton conductor solid oxide battery comprises the double-phase high-entropy fuel electrode, a proton conductor electrolyte layer and an air electrode which are sequentially stacked, the dual-phase high-entropy fuel electrode comprises a porous fuel electrode substrate and loaded dual-phase nanoparticles, wherein the dual-phase nanoparticles consist of an alloy phase formed by carrying out in-situ partial reduction on a loaded high-entropy metal oxide and a residual high-entropy metal oxide phase; the high-entropy metal oxide is obtained by roasting a loaded multi-metal salt precursor in an air atmosphere, and the metal molar ratio of Fe to Co to Ni to Cu to Zn to Y in the precursor is 1: (0.95-1.05): (0.95-1.05): (0.95-1.05): (0.7-0.8): (0.2-0.3). The catalytic activity and the carbon deposition resistance of the electrode are synchronously improved through a unique two-phase high-entropy structure.

The present invention relates to: a proton conductor for an electrolyte membrane of a solid polymer fuel cell, the proton conductor making it possible to obtain an electrolyte membrane for a solid polymer fuel cell, the electrolyte membrane having excellent proton conductivity at high temperatures and being unlikely to decrease in proton conductivity at high temperatures; an electrolyte membrane for a solid polymer fuel cell, the electrolyte membrane containing said proton conductor; a membrane electrode assembly having said electrolyte membrane for a solid polymer fuel cell; a solid polymer fuel cell having said membrane electrode assembly; manufacturing methods for a proton conductor for an electrolyte membrane of a solid polymer fuel cell, an electrolyte membrane for a solid polymer fuel cell, a membrane electrode assembly, and a solid polymer fuel cell; and a proton conductor for an electrolyte membrane of a solid polymer water electrolysis device.　This proton conductor for an electrolyte membrane of a solid polymer fuel cell contains the following component (A) and component (B).　Component (A): fine fibrous cellulose having a fiber width of 1,000 nm or less. Component (B): a polymer compound having one phosphorus oxoacid group.

Provided are a heat generation system, a power generation system, a thermal power generation system, and a heat generation method that make it possible, when generating heat using a heating element in which a hydrogen storage alloy or the like is used, to heat the heating element without using a heater, or to reduce power for heating even when a heater is used. A heating system 1 includes: a heating element in which a multilayer film for generating heat by storage and release of hydrogen is formed on a surface of a support body formed of a hydrogen storage metal, a hydrogen storage alloy, or a proton conductor; a heating device 11 having a sealed container for storing the heating element, an introduction line 4 for introducing a gas containing hydrogen into the sealed container, and a lead-out line 5 for leading out the gas containing hydrogen used for heat generation in the heating element by storage and release of hydrogen in the heating element; and a heat source 7 which is provided in any of a factory, a hot spring site, and a thermal power plant, and which discharges, to the periphery of the sealed container, a fluid for heating the heating element from the outside of the sealed container.

The application relates to the technical field of ion exchange membranes, and specifically discloses a polybenzimidazole modified ion conductive membrane for a liquid flow battery and a preparation method thereof. The ion conductive membrane is prepared by dissolving polybenzimidazole polymer resin and a crosslinking agent in an organic solvent to obtain liquid-phase raw materials, and then doping a proton conductor; the crosslinking agent is selected from polyethylene glycol diglycidyl ether, polymethyl triethoxysilane, an epoxy resin, chloromethylated polysulfone, melamine formaldehyde resin and propyl trimethoxysilane; and the proton conductor is selected from one or more of phosphoric acid metal salt, phytic acid metal salt, perovskite oxide, silica-based proton conductor and metal organic framework derived proton conductor. The ion conductive membrane prepared by using the technical scheme has excellent ion selectivity and proton conductivity, and has excellent chemical stability and mechanical properties.

This invention discloses a battery cell structure for a hybrid solid oxide electrolytic cell stack. The battery cell structure includes a hydrogen flow channel, an oxygen flow channel, and a water vapor reaction chamber. One side of the water vapor reaction chamber is separated from the hydrogen flow channel by a proton conductor electrolyte battery; the other side of the water vapor reaction chamber is separated from the oxygen flow channel by an oxygen ion conductor electrolyte battery. The water vapor reaction chamber is filled with a porous electronic conductor, which connects the positive electrode side of the proton conductor electrolyte battery to the negative electrode side of the oxygen ion conductor electrolyte battery. The proton conductor electrolyte battery converts the water vapor in the water vapor reaction chamber into protons and generates hydrogen gas in the hydrogen flow channel. The oxygen ion conductor electrolyte battery converts the water vapor in the water vapor reaction chamber into oxygen ions and generates oxygen gas in the oxygen flow channel.

The application discloses a kind of proton conductor electrolytic cell composite membranes, membrane electrode and preparation method, belong to fuel cell and electrolytic cell field.The composite membrane is by the proton conductor base electrolyte layer, zirconium oxide base electrolyte film layer and cerium oxide base electrolyte film layer of close connection in turn composition;Proton conductor base electrolyte layer material is BaZr 1‑ z N z O3, 0.01≤z<1;Zirconium oxide base electrolyte film layer material is M y Zr 1‑y O2, 0.01≤y≤0.5;Cerium oxide base electrolyte film layer material is Ln x Ce 1‑x O2, 0.01≤x≤0.5.The composite membrane base electrolytic cell has very low proton transmission resistance and larger electron block resistance, and shows excellent electrolytic performance at 400-600 DEG C.

This proton conductor comprises a two-dimensional covalent organic framework (30) in which at least two linkers different from each other form a cyclic repeating unit in the two-dimensional direction by means of a covalent bond. In the repeating unit, a pore (31) is formed on the inside of the cyclic shape. A plurality of two-dimensional covalent organic frameworks are stacked in a stacking direction so that pores communicate with each other, to form a single crystal (32). The single crystal of the two-dimensional covalent organic frameworks has a plurality of communicating pores (33) in which pores communicate with each other. The plurality of communicating pores are oriented in the same direction.

To provide a hydrogen separation and recovery apparatus capable of separating and recovering high-purity hydrogen in a high yield and capable of being used over a long period of time without generating the problem of membrane deterioration.MEANS: The apparatus for separating and recovering hydrogen includes a cylindrical body made of a proton conductor, an ammonia decomposition means, and a hydrogen pump, wherein the ammonia decomposition means includes an electrode for decomposing ammonia passing through an external space of the cylindrical body made of the proton conductor into hydrogen and nitrogen, and the hydrogen pump includes an electrode for passing hydrogen through an internal space of the cylindrical body made of the proton conductor.SELECTED DRAWING: Figure 1

This invention belongs to the field of proton ceramic electrochemical battery technology, and discloses a cobalt-free air electrode material for a reversible proton conductor type ceramic electrochemical battery, its preparation, and its application. The air electrode material has PrBa 0.8‑x Ca 0.2 Fe 1.8 Ce 0.2‑y O 6‑δ The three-phase structure of BaCeO3 and CeO2 forms BaCeO3 and CeO2 nanoparticles attached to PrBa 0.8‑x Ca 0.2 Fe 1.8 Ce 0.2‑y O 6‑δ Heterogeneous structure on the surface of the skeleton; where 0

A counter electrode-side gas diffusion layer, a membrane electrode composite, a sensing electrode-side gas diffusion layer, a diffusion control plate, and a sealing body are arranged in this order on the inside bottom of the metal can. Both the counter electrode-side gas diffusion layer and the sensing electrode-side gas diffusion layer contain adsorbents. The diameter of the membrane electrode composite is equal to or greater than that of the sensing electrode-side gas diffusion layer, and the sensing electrode-side gas diffusion layer is larger in both diameter and thickness than the counter electrode-side gas diffusion layer. An insulating and acid-resistant ring-shaped coating having an outer diameter larger than that of the membrane electrode composite and an inner diameter smaller than that of the counter electrode-side gas diffusion layer is provided on the inside bottom surface of the metal can. [Effect] The poisoning resistance of the proton conductor gas sensor is improved.

This invention discloses a sulfonic acid-based polyethylene oxide solid proton exchange membrane, its preparation method, and its application. The solid proton exchange membrane includes a porous support layer and a sulfonic acid-based polyethylene oxide proton conductor layer loaded on its surface and / or within its pores. The proton conductor layer is formed by reacting or compounding polyethylene oxide or a polymer containing polyethylene oxide segments with an acidic reagent containing sulfonic acid groups or capable of introducing sulfonic acid groups, and contains fixed acidic proton sites and ether oxygen segments. The preparation method involves dissolving the polyethylene oxide polymer in a solvent and adding an acidic reagent to form a precursor solution, coating it onto the porous support layer, and obtaining the solid proton exchange membrane by drying, curing, or heat treatment. This membrane can constitute a dry-state electrochemical hydrogen purification membrane electrode assembly, achieving selective extraction or purification of hydrogen from a hydrogen-containing gas mixture without adding liquid acidic electrolyte or externally humidifying the inlet gas. This invention can form a continuous composite membrane, verifying its structural components, dry-state proton conductivity, and hydrogen purification applications.

[Task] Provide an electrochemical battery suitable for use in a temperature range of 200°C to 600°C, a power generation method using the electrochemical battery, and a hydrogen production method using the electrochemical battery. [Solution] Fuel cell 1 (electrochemical battery) includes (Li,H) 14‑ 2x Zn 1+x (GeO4)4 represents the proton conductor 5, in which Li 14‑2x Zn 1+x Partial lithium ions in (GeO4)4 are replaced by protons, where x is a number equal to or greater than 0. The proton conductor has a conductivity of 0.01 Siemens / cm or higher at 300°C. An anode 6 is disposed on one side of the proton conductor, a cathode 7 is disposed on the other side of the proton conductor, a first partition 9 is disposed on the anode side 8 of the proton conductor to define an anode chamber, and a second partition 12 is disposed on the cathode side of the proton conductor to define a cathode chamber 11.

To provide a proton conductor that can ensure high proton conductivity over a wide range of temperature and humidity. [Solution] The proton conductor is used in environments above 100°C. The proton conductor is a composite of polymerized zwitterions and phosphonic acid. Under high temperature and low humidity conditions, the phosphonic acid is partially anionized by the zwitterions and becomes a proton carrier. Therefore, high proton conductivity can be obtained even without humidity. Furthermore, under low temperature and high humidity conditions, proton conduction by phosphonic acid alone decreases according to the activation energy, but water is retained by the dipole of the zwitterion. Therefore, under high humidity conditions, protons are donated to water by the phosphonic acid, thus improving proton conductivity. Thus, it is possible to ensure high proton conductivity over a wide temperature and humidity range.