116 results about "Proton conductor" patented technology

The invention discloses a catalyst for a high-temperature proton exchange membrane fuel cell as well as a preparation method and application of the catalyst. The catalyst of the high-temperature proton exchange membrane fuel cell comprises a carbon carrier and Pt nano-particles loaded on the carbon carrier, and at least part of the surface of the Pt nano-particles is coated with manganese dioxide. According to the catalyst of the high-temperature proton exchange membrane fuel cell, the Pt nano-particles are coated with the manganese dioxide, catalytic active sites of the catalyst can be protected after coating, the poisoning effect of phosphoric acid on the catalyst at high temperature is relieved, and the performance of the high-temperature proton fuel cell is improved. In addition, manganese dioxide not only can be used as a protective layer, but also can form a new proton conductor with phosphoric acid, so that a proton transmission channel of the membrane electrode under a high-temperature working condition is improved, and the performance of the high-temperature proton fuel cell is improved.

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.

A heat generating device according to the invention includes: a sealed container into which a hydrogen-based gas is supplied; and a heat generating structure accommodated in the sealed container and in which a plurality of heat generating elements that are configured to generate heat by occluding and discharging hydrogen contained in the hydrogen-based gas are radially arranged. Each of the heat generating elements includes a base made of a hydrogen storage metal, a hydrogen storage alloy, or a proton conductor, and a multilayer film provided on the base. The multilayer film has a first layer made of a hydrogen storage metal or a hydrogen storage alloy and having a thickness of less than 1000 nm and a second layer made of a hydrogen storage metal or a hydrogen storage alloy, which is different from that of the first layer, or ceramics and having a thickness of less than 1000 nm.

The invention discloses a database construction and data standardization method based on an MOF proton conductor material, and belongs to the crossing field of material science and database technology. Aiming at the problems of data dispersion and non-uniform formats of the current MOF proton conductor material, data is collected through multiple channels, and a web crawler is innovatively adopted to improve the efficiency. In the aspect of database construction, a distributed database is selected and combined with a block chain technology. In the aspect of data standardization, multi-dimensional data formats are standardized, complex representation data are processed through artificial intelligence, quality control is enhanced, data reasonability is predicted through machine learning, and real-time updating and correction are achieved through big data. According to the method, dispersed data are integrated, consistency and comparability are ensured, data quality and intelligent level are improved, and powerful support is provided for related research and application.

The invention relates to a PCEC proton conductor electrolyte, preparation thereof and application of the PCEC proton conductor electrolyte in high-humidity continuous in-situ hydrogenation upgrading of biomass pyrolysis gas, the proton conductor electrolyte is composed of a PCEC fuel electrode support body, and a BZCY proton conductor layer and an NCO proton conductor layer which are sequentially arranged on the surface of the PCEC fuel electrode support body, a NiO-BZCY / BZCY / NCO in-situ protection interface structure is formed by the contact surface of the BZCY proton conductor layer and the NCO proton conductor layer, the NCO proton conductor layer is made of A2B2O7 type fluorite structure oxide Nd2Ce2O7, the BZCY proton conductor layer is made of ABO3 type perovskite structure oxide BaZrxCeyY1-x-yO3-delta (BZCY, x + y + z is larger than or equal to 0 and smaller than or equal to 1, and y is not equal to 0. The preparation method comprises the following steps: respectively synthesizing NCO and BZCY proton conductors, spin-coating to construct a heterogeneous interface, forming a PCEC green body, sintering at high temperature, and optimizing a coating process and sintering conditions to form the PCEC single electrolytic cell with high compactness and excellent interface synergistic effect. Compared with the prior art, the method has higher electrochemical stability, water vapor corrosion resistance and long-period operation performance, and shows wide industrial application potential.

The invention discloses a preparation method and application of a metal-polymer hydrogen separation membrane with a sandwich structure, and relates to the technical field of hydrogen separation membrane preparation, and the preparation method specifically comprises the following steps: S1, preparing sulfonated polyetheretherketone of a pure proton conductor, and mixing with polybenzimidazole; s2, preparing a membrane casting solution; s3, preparing a pure proton conducting layer; s4, preparing a compact film; s5, preparing a Pt / C catalyst loaded metal-polymer compact layer; s6, preparing a composite film with a sandwich structure; s7, a Cu-Zn-Al2O3 catalyst and a Ni-CeO2 catalyst are prepared; and S8, preparing the metal-polymer hydrogen separation membrane with a sandwich structure. The metal-polymer hydrogen separation membrane provided by the invention has 100% selectivity to H2.

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.

The invention discloses a selenium molybdate compound constructed by rigid binary / polybasic carboxylic acid ligands as well as a preparation method and application of the selenium molybdate compound. The molecular formula of the compound is as follows: compound 1, (Me2NH2) 14 [(Se2Mo12O42) 2 {O2CC2H2CO2} 3]. 12H2O; a compound 2 is (Me2NH2) 14 [(Se2Mo12O42) 2 {O2CC4H4CO2} 3]. 9H2O; the compound 3 is (TEAH) 28 [(Se2Mo12O42) 4 {C6H4 (CO2) 3} 4]. 27H2O. The polyoxometallate-based proton conductor constructed by the invention has good thermal stability and structural stability at the same time. The polyoxometallate-based proton conductor can maintain the structural stability through the covalent interaction between the ligand and the polyoxometallate (selenium molybdenum oxygen cluster), can realize rapid transmission of protons under the conditions of medium temperature (100 DEG C) and high humidity (98% RH), and meets the requirements of high-performance proton conductive materials in the solid electrolyte material market.

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.

An ammonia generation system (1) is provided with: an electrolysis cell (10) which generates ammonia from nitrogen and water, and is provided with a solid electrolyte (13) that contains a phosphoric acid compound which is a proton conductor; an ammonia separator (40) which is provided in a cathode outlet-side flow path (21) and separates ammonia from the cathode off gas; and a cathode-side circulation flow path (60) which is connected to the ammonia separator (40), and which returns, to the cathode (12), the residual gas that remains after the separation of ammonia by means of the ammonia separator (40) and contains nitrogen and hydrogen.

The application discloses a preparation method for improving stability of a proton conductor electrolyte in carbon dioxide, relates to the technical field of solid oxide batteries and solid oxide electrolysis cells, and is characterized by the following steps: through a nano-additive surface modification method, a nano-structure additive of an alkaline earth metal oxide, or a transition metal oxide, or a VA main group metal oxide is prepared on the surface of a barium cerate and a barium zirconate series electrolyte obtained through a solid phase reaction method by using a vacuum impregnation method, and an alkaline proton conductor electrolyte with a surface modification additive is obtained. The alkaline proton conductor electrolyte with the surface modification nano-structure additive obtained by the application can be applied to a proton type carbon hydrogen ceramic membrane fuel cell or high-temperature electrolysis carbon dioxide, so that the stability of the electrolyte can be effectively enhanced, and ohmic loss can be reduced, thereby greatly improving the performance and stability of the solid oxide fuel cell and the electrolysis cell under a carbon dioxide atmosphere.

The present invention discloses a garnet-type proton conductor based on proton substitution and a preparation method thereof, belonging to the technical field of proton conductors. The garnet-type proton conductor and its derivative system of the present invention have the chemical formula Li 28(1‑x) H 28x La 12 Zr8O 48 Since the present invention is based on garnet-type solid electrolyte Li7La3Zr2O 12 The proton substitution of Li7La3Zr2O introduces hydrogen ions into it to form a proton conductor, and its proton conductivity is at an excellent level compared to traditional perovskite proton conductors. 12 The protonated garnet-type proton conductors exhibit high proton and oxygen ion conductivity at medium and high temperatures, ensuring their effectiveness as solid electrolytes linking hydrogen and electricity. Substituting Al or similar elements for the hydrogen element in these materials can further enhance their stability.

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.

The present invention discloses a proton conductor ceramic membrane reactor and its preparation method and application. The proton conductor ceramic membrane reactor of the present invention comprises an anode, a cathode and a proton conductor ceramic membrane. The anode comprises Pt or Ni and a proton conductor ceramic membrane material. The cathode comprises a Ru / C catalyst and a proton conductor ceramic membrane material. The proton conductor ceramic membrane comprises a proton conductor ceramic membrane material. The chemical formula of the proton conductor ceramic membrane material is Ln x WO 11.25‑δ , where Ln is a lanthanide element, 5.2≤x≤5.8, and 0≤δ≤1. The proton conductor ceramic membrane reactor of the present invention can electrochemically synthesize ammonia under medium temperature conditions, has excellent hydrogen separation efficiency and ammonia synthesis performance, and is suitable for large-scale promotion and application.

The present invention belongs to the technical field of inorganic membranes, and particularly relates to a high-temperature carbon dioxide and water co-permeable membrane, its preparation method and application. At 500 - 600 °C, the porous proton conductor framework is impregnated in molten carbonate, taken out after heat preservation for 1 - 2 h, and a mixed proton-carbonate ion conductor membrane is obtained. The conductor membrane prepared by the present invention can directly capture carbon dioxide and water from high-temperature flue gas. On the one hand, pure carbon dioxide can be obtained through the condensation process to achieve carbon capture. On the other hand, the carbon dioxide and water permeated at high temperature can be used to obtain syngas through co-electrolysis or methane reforming, etc., and then high-value chemicals can be produced to realize the resource utilization of carbon dioxide.

The invention discloses a proton conductor electrolyte material and a preparation method and application thereof, the chemical general formula of the proton conductor electrolyte material is ABO3-delta, A site is Ba element, and B site is Zr, Sn, Ce and Nd element; the proton conductor electrolyte material is prepared through the steps of raw material acoustic resonance mixing, calcining, tape casting, drying, laminating and co-pressing, glue discharging treatment and Joule heat rapid hot pressing sintering, and the proton conductor electrolyte material is used for preparing an anode supporting single cell and an electrolyte supporting single cell. The proton conductor electrolyte material has good CO2 and H2O tolerance and ionic conductivity, the preparation method is efficient and energy-saving, no impurity is introduced, and the proton conductor electrolyte material shows a good application prospect.

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.

The proton conductor of the present disclosure contains a compound represented by the chemical formula BaaZr (1-x-y) Yb < x > Cu < y > O (3-delta). Wherein in the chemical formula, 0.95 < = a < = 1.05, 0.1 < = x < = 0.4, 0.01 < y < 0.20, and 0 < delta < = 0.65 are satisfied. The electrolyte membrane (10) of the present disclosure includes the proton conductor of the present disclosure.

The present invention discloses a high-temperature electrochemical method and device for fully decomposing hydrogen sulfide to produce hydrogen and sulfur. The method includes the following steps: a gas containing hydrogen sulfide undergoes an electrochemical oxidation reaction at the anode of an electrolytic cell to produce sulfur and protons; the sulfur flows out of the anode chamber of the electrolytic cell in a gaseous state under high temperature conditions and is collected; the protons pass through the solid electrolyte membrane of the electrolytic cell to reach the cathode, and are reduced at the cathode of the electrolytic cell to produce hydrogen; the solid electrolyte membrane is a high-temperature proton conductor, allowing protons to pass from the anode to the cathode under high temperature conditions. The present invention converts hydrogen sulfide into high-value-added products through electrochemical means, achieving the treatment and resource utilization of toxic gases. Compared with traditional electrochemical methods, water is not required as an absorption medium for hydrogen sulfide, the hydrogen sulfide decomposition efficiency is high, and the resulting sulfur product has high purity.

The application provides a synthesis method of an ammonia-resistant proton conductor material of a direct ammonia fuel cell, comprising the following steps: step one: selecting a proton conductor material, according to the molar proportion of metal cations therein, weighing metal salts containing corresponding metal elements, and mixing the metal salts with a solvent to obtain a mixed solution; step two: heating and stirring the mixed solution under an ultrasonic environment, adjusting the pH value of the solution until the metal salts are fully dissolved to obtain a clear mixed precursor solution; step three: performing heat preservation treatment on the clear mixed precursor solution, generating a precursor droplet group through an aerosol generator, fully mixing the precursor droplet group with a carrier gas, and forming a precursor aerosol; and step four: introducing the precursor aerosol into an ammonia-containing flame field to react, so as to obtain a new ammonia-resistant proton conductor material. The synthesis method is one-step continuous, simple and effective, the process is precisely controllable, the product is strong in ammonia resistance and stable in quality, and the scale-up synthesis is easy to realize.

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 novel reformer based on coupling of a proton conductor and a carbonate conductor ceramic membrane. The novel reformer comprises a tubular reformer and a flat plate pile tower reformer, and each reformer comprises a proton electron mixed conductor ceramic membrane, a carbonate electron mixed conductor ceramic membrane and a reforming chamber; a self-heating reforming chemical reaction is carried out in the reforming chamber, the proton-electron mixed conductor ceramic membrane and the carbonate electron mixed conductor ceramic membrane respectively carry out an electrode reaction, the chemical reaction and the electrode reaction are simultaneously coupled, and the purification of hydrogen and the separation of the product carbon dioxide are realized in one step at a high temperature by utilizing the ceramic membranes. The reformer can solve the problems of methane reforming and hydrogen purification, and is simple to control and easy to obtain pure hydrogen.

The invention provides a method for preparing a proton conductor solid oxide electrolytic tank by adopting ultrafast high-temperature sintering, which comprises the following steps: S1, respectively preparing a negative electrode green body, a positive electrode green body and a proton conductor electrolyte diaphragm green body by adopting a tape casting method, and carrying out lamination and hot pressing to obtain a total battery green body comprising a negative electrode, an electrolyte diaphragm and a positive electrode; s2, discharging glue from the total battery green body to obtain a glue-discharged green body; and S3, placing between two electrodes connected with a direct-current power supply, enabling the positive electrode and the negative electrode to be in close contact with the green body, turning on the power supply in a constant-current mode, enabling the current intensity applied to the two ends of the green body after glue removal to be 0.1-20A / cm < 2 >, heating and sintering at an ultra-fast rate of 500-2000DEG C / min, electrifying for 1-600s, and cooling to obtain the proton conductor solid oxide electrolytic tank. The method greatly shortens the sintering time, and effectively inhibits element volatilization of the electrolyte and interface diffusion and chemical reaction between the electrolyte and the positive and negative electrodes.