96 results about "Palladium alloy" patented technology

The invention provides a flexible palladium film hydrogen sensor and a preparation method thereof, the flexible palladium film hydrogen sensor is sequentially provided with a flexible substrate, a hydrogen sensitive sensing layer and a contact connection layer from bottom to top, and the contact connection layer is connected with a resistance measurement unit; and the hydrogen-sensitive sensing layer is a palladium or palladium alloy film with a conical micro-nano structure. The palladium or palladium alloy thin film with the conical micro-nano structure provides a hydrogen sensor conical surface micro-nano structure with a high specific surface area for the flexible palladium thin film hydrogen sensor, and the process that hydrogen is adsorbed, dissolved and diffused into the palladium or palladium alloy thin film is accelerated, so that the response speed of the sensor is increased; according to the hydrogen sensor, the flexible substrate is adopted, so that the hydrogen sensor can be conveniently arranged in various narrow spaces, and the applicability of the hydrogen sensor in various scenes is improved.

The invention discloses a high-conductivity palladium alloy for a chip test probe and a preparation method of the high-conductivity palladium alloy, and the palladium alloy comprises the following components in percentage by mass: 50-58% of Pd, 35-40% of Cu, 5-10% of Ag, 0.05-1.0% of Cr and 0.1-1.5% of auxiliary elements, the auxiliary element is selected from at least one of Al, Zn, In and Si; the resistivity of the palladium alloy is 8.0 mu omega.cm or below, the Vickers hardness is 450 HV or above, the 90-degree bending frequency is 8 or above, the tensile strength is 1500 MPa or above, and the ductility is 6% or above, the palladium alloy is subjected to pre-smelting and secondary smelting, and at least part of Cu and at least part of Cr in raw materials are mixed and pre-smelted to obtain a copper-chromium intermediate alloy; and the copper-chromium intermediate alloy and the remaining raw materials are mixed and then subjected to secondary smelting. The palladium alloy can meet the urgent requirements of probes in various forms on low resistance, high plasticity and toughness, fatigue resistance, mechanical strength and the like at the same time.

The invention relates to the technical field of chemical catalysis, in particular to a copper-silicon catalyzed cyclohexanol gradient dehydrogenation and hydrogen recycling method which comprises the following steps: step 1, preparing a gradient catalyst, namely carrying out surface hydroxyl regulation pretreatment on porous silica gel, and loading a copper salt solution by adopting a step-by-step impregnation method to form gradient distribution with gradually decreased copper loading capacity from outside to inside, carrying out segmented heating reduction in a reducing atmosphere containing 5vol% of H2 / N2; 2, gradient dehydrogenation reaction process control; and 3, hydrogen in-situ separation and cyclic utilization: separating hydrogen from the reaction outlet gas through a palladium alloy membrane, controlling the pressure difference of the two sides of the membrane to maintain the permeation flux, returning the separated hydrogen to the inlet of the reactor to adjust the hydrogen partial pressure, and storing the residual hydrogen. Through gradient catalyst preparation, accurate reaction process control and efficient hydrogen recovery technologies, the cyclohexanone production efficiency is improved, and long-term stability of the catalyst and efficient recycling of hydrogen are achieved.

The utility model relates to the field of waste gas purifiers, in particular to a waste gas purification device for hydrogen-oil-gas separation, which comprises a rectangular bottom plate, an oil-gas separation box is arranged on the bottom plate, a hydrogen purification tank is fixedly connected onto the bottom plate, and a filter box is fixedly connected onto the bottom plate. When the oil-gas separation device is used, oil can be separated through the oil-gas separation box, heavy oil flows out from the lower part of the oil-gas separation box through the oil outlet pipe, the first electromagnetic valve controls the oil to flow in the oil outlet pipe, and light waste gas enters the hydrogen purification tank from the first gas outlet pipe after being preliminarily filtered by the first filter screen; the palladium alloy separation pipe in the hydrogen purification tank is used for separating hydrogen in the waste gas, and the filter box is used for further filtering the waste gas after hydrogen purification, so that the filter effect is better, air pollution is avoided, and the hydrogen in the waste gas can be recycled.

The invention discloses a flow compensation method and device for a palladium alloy film hydrogen sensor and a transmitter. The method comprises the steps that the response time tau, the actually-measured resistance change value delta Rmeas and the concentration measurement value Cmeas of the palladium alloy film hydrogen sensor for currently detecting to-be-detected gas are obtained; determining a current flow estimated value Qest of the to-be-detected gas according to the tau in combination with a pre-established flow-response time relation model; determining the ratio k of the delta Rmeas to the theoretical resistance change value delta Rturn corresponding to the concentration true value Cturn of the gas to be detected according to the Qest in combination with a pre-established flow-resistance change ratio relation model; and correcting the Cmeas according to the k, so as to obtain the Cturn. Therefore, the influence of the flow change of the to-be-measured gas on the concentration measurement value of the palladium alloy hydrogen sensor can be corrected based on the response time.

The invention relates to the field of power equipment safety monitoring, and discloses a thermal power plant generator hydrogen leakage on-line monitoring system and a detection method, and the system comprises a distributed solid palladium alloy sensor array, a multichannel impedance harmonic signal conditioning unit, an edge calculation processing terminal and an upper computer monitoring platform. The multi-channel impedance harmonic signal conditioning unit applies a composite alternating current excitation signal to the distributed solid palladium alloy sensor array; and the edge calculation processing terminal receives the digital voltage sampling data, calculates complex impedance spectrum characteristic parameters and nonlinear harmonic distortion coefficients, executes pure hydrogen locking discrimination and surface pollution correction, constructs a concentration gradient vector field and calculates space coordinates of a leakage source. Environmental interference is eliminated by analyzing nonlinear harmonic response, surface pollution influence is eliminated by using a complex impedance spectroscopy separation technology, a leakage position is inversed in combination with a countercurrent line tracking algorithm, and the problems that the generator hydrogen monitoring false alarm rate is high and positioning cannot be achieved are solved.

The application discloses a preparation method of vanadium-doped and high-hydrated mangan-chromian spinel monocrystal under high temperature and high pressure. The cylindrical mangan-chromian spinel sample is prepared by taking solid rose triangular rhombic manganese carbonate crystal, solid chromium (III) acetate hydroxide crystalline powder, solid vanadium (IV) acetylacetonate oxide powder, solid oxalic acid powder, solid bixbyite powder, solid chromium hydroxide powder and liquid dilute nitric acid as starting raw materials; two pieces of water source sheets are made from the bixbyite powder and the chromium hydroxide powder with a weight ratio of 4:1; the two pieces of water source sheets are placed at two ends of the cylindrical mangan-chromian spinel sample and then are placed into a double-capsule structure experimental sample bin with an inner layer sleeve being a graphite tube and an outer layer sleeve being a gold-palladium alloy tube; the high temperature and high pressure reaction is carried out to obtain the mangan-chromian spinel monocrystal; and the preparation technology blank of the vanadium-doped and high-hydrated mangan-chromian spinel large-particle monocrystal under the current high temperature and high pressure conditions is solved.

The invention discloses a preparation method of a copper-palladium alloy loaded nano titanium dioxide semiconductor material as a catalyst for a carbon dioxide reduction reaction. Firstly, alloy nanoparticles are generated through a sol-gel method, the morphology of the nanoparticles is controlled and agglomeration is prevented through oleylamine and oleic acid, and borane-tert-butylamine is added at the temperature of 170 DEG C to regulate and control the sizes of the generated alloy nanoparticles. A series of characterizations prove that the catalyst has a very good particle loading condition, uniform particle distribution and increased reaction active sites, and shows excellent activity when being applied to a carbon dioxide reduction reaction, when the loading capacities of copper and palladium are respectively 1%, the activity of the obtained catalyst is the highest, the methane generation rate can reach 20.23 mol / g / h, and the methane generation rate can reach 20.23 mol / g / h. The selectivity of methane reaches 100%.

The invention discloses a high platinum group metal copper anode slime treatment method which comprises the following steps: placing high platinum group metal copper anode slime in dilute sulphuric acid, blowing air, heating, oxidizing and leaching copper and nickel in the high platinum group metal copper anode slime, and carrying out solid-liquid separation to obtain a first filtrate and a first filter cake; dispersing the first filter cake in dilute sulfuric acid, carrying out heating and pressurizing reaction in an oxygen atmosphere, dissolving out part of metal in the first filter cake, carrying out solid-liquid separation to obtain a second filtrate and a second filter cake, mixing the second filter cake, calcium oxide and coke powder, pressing into blocks, smelting at 1450-1550 DEG C for a set time, atomizing the smelted alloy to obtain fine particles, and recycling the fine particles. Gold-platinum-palladium alloy powder is obtained; and after the second filtrate is subjected to flash evaporation and rapid cooling, ferrous sulfate is added into the second filtrate for palladium precipitation, the filtrate obtained through filtering is sequentially subjected to the steps of silver precipitation and selenium and tellurium precipitation, thiourea is added into the remaining filtrate, a reaction is conducted at high temperature and high pressure, thiourea complex precipitation is generated, solid-liquid separation is conducted, third filtrate and a third filter cake are obtained, and platinum family concentrate is obtained.

The application discloses a kind of nano gold palladium alloy catalyst and its preparation method and application.In protective atmosphere, the mixed solution comprising gold precursor, palladium precursor, reducing agent and stabilizer is reduced and coprecipitation reaction, the reaction product obtained is calcined, and the nano gold palladium alloy catalyst is obtained.The catalyst is based on gold palladium mutual solution and causes electron structure reconstruction principle, adjusts gold palladium alloy peripheral electron cloud density, so as to change the adsorption of gold palladium alloy, and greatly improves the selectivity and catalytic activity of catalyst.The catalyst is used for electrocatalytic reduction CO2, and the selectivity of CO can reach more than 90%, which is much higher than that of commercial CO2 reduction catalyst, and has a wide application prospect in the field of "carbon neutralization".

Provided is a multilayer ceramic capacitor provided with an internal electrode capable of maintaining a relatively high coverage rate even when the multilayer ceramic capacitor is thinned. A laminated ceramic capacitor (1) is provided with a laminated body (2) having: a plurality of laminated dielectric layers (3) containing a ceramic; and a plurality of internal electrodes (4, 5) disposed along each of a plurality of interfaces between the dielectric layers (3). When the conductive metal or the alloy containing the conductive metal is represented by X, the internal electrodes (4, 5) contain a conductive component and a ceramic component, the conductive component contains X, and the ceramic component contains XTiO3. Preferably, X is one selected from nickel, copper, silver and a silver-palladium alloy.

The invention discloses a palladium alloy film hydrogen sensor and a hydrogen detection system and method.The sensor comprises a substrate, the substrate is provided with a first surface and a second surface which are opposite, the first surface is provided with a first hydrogen-sensitive film responding to the hydrogen concentration within a first detection range, and the second surface is provided with a second hydrogen-sensitive film responding to the hydrogen concentration within a second detection range; a second hydrogen-sensitive film which responds to the hydrogen concentration in a second detection range is arranged on the second surface, and the material components and / or microstructures of the first hydrogen-sensitive film and the second hydrogen-sensitive film are different; a temperature measuring element for measuring temperature and a heating element for heating are also arranged on the substrate; wherein the lower limit value of the first detection range is larger than the lower limit value of the second detection range and smaller than or equal to the upper limit value of the second detection range, and the upper limit value of the first detection range is larger than the upper limit value of the second detection range. According to the invention, the problems of complex design, large size, high power consumption, high cost and large error of an existing dual-sensing system are solved through integrated double-sided design of high and low measuring ranges and shared temperature compensation.

The invention discloses a preparation process of a palladium nano-film hydrogen sensor, and belongs to the field of sensor preparation. The preparation process of the palladium nano-film hydrogen sensor comprises the following steps: step 1, pre-treating an aluminum sheet, and flattening to remove a surface oxide layer; 2, carrying out primary oxidation and secondary oxidation; thirdly, the aluminum oxide layer is subjected to chambering operation, and an aluminum-based negative mold is obtained; step 4, carrying out polymerization and demolding; 5, coating the PMMA nano-column array sample through electron beam evaporation equipment to form a palladium alloy nano-film; step 6, preparing and arranging a microelectrode; 7, completing electrical connection and packaging between the microelectrode and an external circuit; the response value and the response speed of the prepared palladium nano-film hydrogen sensor are remarkably improved, and the situation that the sensor is rapidly aged and breaks down due to embrittlement, cracking or stripping caused by substrate limitation and strong lattice stress is avoided.

The application provides a gold-palladium plating solution for copper wire electroplating and an electroplating process, wherein the gold-palladium plating solution for copper wire electroplating is characterized by comprising the following raw material components: 0.3-20 g / L of water-soluble gold salt, 0.1-12 g / L of water-soluble palladium salt, 10-20 mg / L of graphene quantum dots, 20-30 g / L of ethylenediamine, 50-110 g / L of a complexing agent, 15-25 g / L of a conductive salt, 15-25 g / L of a buffering agent, 25-35 g / L of a stabilizing agent, and the rest is solvent. The electroplating process is as follows: the copper wire to be plated is placed into an electroplating tank containing the gold-palladium plating solution, an electrode plate is used as an anode, and the copper wire is used as a cathode to perform electroplating, and after the electroplating is completed, the copper wire is subjected to a post-plating treatment process. The gold-palladium plating solution and the electroplating process have the advantages of simple process, high conductivity, wear resistance, strong corrosion resistance, uniform plating layer distribution, precise size, aging resistance and the like of the obtained gold-palladium alloy plating layer.

The application discloses an electrochemical double hydrogenation three-cell system, which comprises a chemical cell, an anode cell, a cathode cell, an ion exchange film, a palladium film, and a power supply; the palladium film serves as an anode electrode, and a first nano-porous palladium alloy catalyst is coated on one side of the surface of the palladium film; a cathode electrode is arranged in the cathode cell, and the cathode electrode is a second nano-porous palladium alloy catalyst; the system generates adsorbed hydrogen by electro-oxidation of a second organic substrate in the anode cell on the surface of the palladium film through the anode electrode; the adsorbed hydrogen is transferred to the chemical cell through the characteristics of the palladium film body phase hydrogen transfer, and the hydrogenation of the organic substrate is realized on the surface of the first nano-porous palladium alloy catalyst; meanwhile, the cathode electrode generates adsorbed hydrogen by hydrolysis on the surface of the second nano-porous palladium alloy catalyst to realize the hydrogenation of the organic substrate, and finally the electrochemical double hydrogenation of the organic matter is realized; experimental results show that when the three-cell system is applied to organic hydrogenation, the faraday efficiency is as high as 200%, and meanwhile, the system has excellent stability and ultralow energy consumption.

The invention discloses an NTC (Negative Temperature Coefficient) thermistor and a preparation method thereof, the NTC thermistor comprises a ceramic substrate and electrodes, the electrodes are attached to two ends of the ceramic substrate, the electrodes are connected with leads, a glass packaging layer is arranged on the outer side of the ceramic substrate, and the ceramic substrate and the electrodes are wrapped by the glass packaging layer; the ceramic matrix is prepared from the following raw materials in percentage by weight: 40%-60% of manganese oxide, 10%-20% of cobalt oxide, 20%-30% of nickel oxide, 3%-12% of copper oxide and 1%-5% of doped element oxide; the electrode is a silver-palladium alloy electrode, and the mass ratio of silver to palladium is 7: 3-9: 1. By accurately controlling the raw material proportion and the preparation process of the ceramic matrix, the thermistor has a relatively high response speed and can timely and accurately reflect the rapid change of the temperature. And meanwhile, the thermistor has a wider resistance-temperature characteristic range and higher stability, and is suitable for the field of high-precision temperature measurement and control. And the oxidation resistance and the stability of the improved thermistor are improved.

The invention discloses a high-precision linear palladium alloy wire and a preparation method thereof and a high-precision probe, and the palladium alloy wire comprises the following components in percentage by weight: 38-43% of Pd, 25-35% of Cu, 20-32% of Ag, 0.01-2% of trace elements, and at least one selected from Zn, Ni, B, Al and In, the palladium alloy wire is obtained by carrying out at least three stages of fine drawing through a drawing assembly with the surface roughness Ra being smaller than 0.05 micrometer, the diameter is smaller than 0.8 mm, the surface roughness Ra is smaller than 0.05 micrometer, the diameter tolerance is within + / -0.002 mm, and the roundness is within 0.001 mm. According to the method, the palladium alloy wire material is comprehensively optimized in component design and processing path, so that the palladium alloy wire material still has relatively small diameter tolerance, good roundness and relatively low surface roughness under the condition of a micro diameter, and the quality uniformity and the test stability and precision of a probe array are favorably improved.

A heater assembly (100) for an aerosol generating system (200), wherein the heater assembly (100) comprises a resistance heating element (102) for vaporizing a liquid aerosol generating substrate and a porous body (104) for transporting the liquid aerosol generating substrate to the resistance heating element (102), the porous body (104) having a liquid absorption surface (104a) and a heating surface (104b), the resistance heating element (102) being located on the heating surface (104b) of the ceramic porous body (104), and the resistance heating element (102) containing a silver-palladium alloy consisting of 53 to 73 weight percent silver, 7 to 23 weight percent palladium, 1 to 7 weight percent carbon, 3 to 17 weight percent oxygen, and impurities.

The invention discloses a silver-palladium alloy nanowire and a preparation method and application thereof, and belongs to the technical field of nano alloy materials. The preparation method comprises the following steps: (1) adding an aqueous solution of hexadecyl trimethyl ammonium bromide and an aqueous solution of dopamine hydrochloride into an aqueous solution of silver nanowires, uniformly stirring, dropwise adding an aqueous solution of sodium chloropalladate, and continuously stirring until the reaction is completed to obtain a reaction product; and (2) carrying out centrifugal washing on the reaction product to obtain the silver-palladium alloy nanowire. The prepared silver-palladium alloy nanowire material is used for catalytic reduction of 4-nitrophenol, verification of a photothermal effect and glutathione level detection, so that the application of the silver-palladium alloy nanowire material in the field of catalysis is effectively expanded; and a brand new nano-alloy material and an application approach are provided for high-sensitivity and high-selectivity detection of glutathione level due to the exertion of a photothermal effect.

The invention discloses an optical fiber-palladium alloy membrane single hydrogen sensor machine control method based on temperature compensation, and relates to the technical field of online monitoring of power equipment. A hydrogen-sensitive sensing unit and a temperature compensation module are arranged in the sensor. The hydrogen-sensitive sensing unit and the temperature compensation module are arranged in parallel, are completely immersed in insulating oil, are in contact with oil flow and are used for monitoring dissolved hydrogen in situ in real time; the hydrogen-sensitive sensing unit adopts an optical fiber structure of which the side wall is plated with a palladium alloy nano-film, and is used for sensing the concentration of hydrogen dissolved in oil and generating corresponding optical signal change; the temperature compensation module adopts an optical fiber structure inert to hydrogen and is used for synchronously measuring the oil temperature of the position where the probe is located. By means of the structure and the matched control method, in-situ and real-time monitoring of the concentration of the hydrogen in the sleeve is achieved, the reliability and stability of hydrogen concentration monitoring data are greatly improved, a more accurate basis is provided for early fault diagnosis of a transformer, and the device and the method have great significance in guaranteeing safe operation of a power grid.

The application relates to the hydrogen storage technical field and particularly relates to a material for improving the CO poisoning resistance of Pd particles in the hydrogen absorption process and a preparation method thereof, which comprises the following steps: 1) preparing MOF-74(M); 2) adding a solution containing a palladium source precursor into the MOF-74(M) drop by drop, drying the Pd / MOF-74(M) after natural volatilization to obtain Pd / MOF-74(M); 3) introducing hydrogen into the Pd / MOF-74(M) to obtain Pd / MOF-74(M); and 4) obtaining the Pd / MOF-74(M) after activation. 2+ / MOF-74(M). 3) introducing hydrogen into the Pd 2+ / MOF-74(M) to obtain Pd / MOF-74(M). 4) obtaining the Pd / MOF-74(M) after activation. The prior art does not have research on improving the CO gas poisoning resistance of palladium in the hydrogen absorption process, and conventional anti-poisoning means alloying will cause problems such as palladium alloy element segregation, hydrogen absorption capacity reduction, hydrogen absorption rate reduction and the like, the inventors of the application propose that the palladium particles are combined with MOF-74(M) to form a Pd / MOF-74(M) composite structure, which can effectively improve the poisoning effect of strong toxic gas CO on palladium in the hydrogen absorption process.

A kind of high conductivity palladium alloy for chip test probe and preparation method thereof, in percentage by mass, palladium alloy includes 50-58%Pd, 35-40%Cu, 5-10%Ag, 0.05-1.0%Cr and 0.1-1.5% auxiliary elements;Auxiliary elements are selected from at least one of Al, Zn, In, and Si;The resistivity of the palladium alloy is below 8.0μΩ·cm, the Vickers hardness is more than 450HV, the number of 90° bends is more than 8 times, the tensile strength is more than 1500MPa, and the elongation is more than 6%. The palladium alloy is subjected to pre-smelting and secondary melting, including mixing at least part of Cu and at least part of Cr in the raw material and pre-smelting to obtain a copper-chromium intermediate alloy;The copper-chromium intermediate alloy is mixed with the remaining raw materials and then subjected to secondary melting. The palladium alloy of the present invention can simultaneously meet the urgent needs of various morphological probes for low resistance, high plastic toughness, fatigue resistance and mechanical strength, etc.

A method of facilitating electrolytically depositing chromium onto a metal substrate from an electrolyte including an ionic form of chromium and one or more organic additives in an electrodeposition vessel by applying a current through the electrolyte from an anode to the metal substrate to deposit the chromium on the metal substrate. The method comprises providing the anode, the anode including a core comprising a valve metal, an interlayer disposed on the core and comprising one of a titanium-tantalum alloy or a titanium-palladium alloy, and a catalyst material layer disposed on the interlayer.

The invention provides a deuterium gas generator system. The deuterium gas generator system includes an electrolytic cell and a palladium alloy purifier membrane having a surface area of no more than 10 cm < 2 >.

A circuit board includes a substrate, a conductive pad, and at least one protective layer set. The conductive pad is disposed on the substrate. The at least one protective layer set is disposed on a side of the conductive pad away from the substrate. The protective layer set includes an oxidation protection layer and a palladium alloy layer disposed in a stack, the oxidation protection layer being closer to the substrate than the palladium alloy layer. The material of the oxidation protection layer includes a nickel-based alloy.

The invention relates to the technical field of hydrogen energy storage, in particular to a leakage blocking assembly and hydrogen energy storage equipment, according to the technical scheme, the leakage blocking assembly comprises a blocking mechanism, the blocking mechanism is provided with a blocking valve, a spiral pipe, a material storage barrel, an electric heating clamp and a lithium battery which can only be opened manually, the blocking valve is of a double-sealing structure, and a valve element is coated with a hydrogen blocking coating; a self-locking mistaken touch prevention structure is further arranged; the hydrogen energy storage equipment comprises a protection mechanism, a hydrogen storage mechanism, the leakage blocking assembly and a cooling mechanism, the protection mechanism comprises an anti-collision frame and the like, the hydrogen storage mechanism comprises a hydrogen storage tank and the like, the cooling mechanism comprises a liquid cooling pump body and the like, the base is provided with a groove matched with the hydrogen storage tank, an energy absorption buffer layer is arranged on the inner wall of the anti-collision frame, and the hydrogen storage tank is lined with a graphene or palladium alloy film. And the circulating pipe is a dual-channel redundant loop and is provided with a leakage monitoring component. The problems that an existing equipment leakage blocking assembly is insufficient in sealing, treatment after leakage is not timely, and potential safety hazards are likely to be caused by environmental factors are solved.

The invention discloses a hydrogen sensor and a preparation method thereof. The hydrogen sensor comprises bonding glass; the bonding glass is bonded with the bottom of the SOI substrate to form a whole; the surface of the top of the SOI substrate is covered with a strain diaphragm; a palladium alloy film is arranged on the strain diaphragm; and a Wheatstone bridge for detecting the hydrogen concentration is integrated on the working crystal face of the strain diaphragm. The hydrogen sensor has the advantages of good selectivity, long service life, good long-term stability, high sensitivity and low measurement lower limit of a conventional palladium alloy film resistance sensor.

The present invention provides a platinum-based alloy slurry for alumina co-firing and a heating electrode. The platinum-based alloy slurry for alumina co-firing contains the following components in parts by weight: a) 65%-80% of a main conductive phase, wherein the main conductive phase is monodisperse spherical platinum-palladium alloy powder, and the particle size of the platinum-palladium alloy powder ranges from 200 to 300 nm; b) 1%-5% of an auxiliary conductive phase, wherein the auxiliary conductive phase is a metal organic compound; c) 0.5%-1% of a sintering aid, wherein the sintering aid is γ-Al2O3 powder or a mixed powder of γ-Al2O3 and α-Al2O3; and d) 15%-30% of an organic carrier.

The invention provides platinum-based alloy slurry for aluminum oxide co-firing and a heating electrode, the platinum-based alloy slurry for aluminum oxide co-firing comprises the following components in parts by weight: a) 65%-80% of a main conductive phase, the main conductive phase is monodisperse spherical platinum-palladium alloy powder, and the particle size range of the platinum-palladium alloy powder is 200-300 nm; the conductive material comprises the following components in percentage by weight: (a) 1%-5% of a conductive phase which is a metal organic compound, (b) 1%-5% of an auxiliary conductive phase which is a metal organic compound, (c) 0.5%-1% of a sintering aid which is gamma-Al2O3 powder or mixed powder of gamma-Al2O3 and alpha-Al2O3, and (d) 15%-30% of an organic carrier.

This invention relates to a system and method for producing hydrogen gas (H2) from the reaction of hydrochloric acid and aluminum (10), purifying the obtained hydrogen gas (H2) using a palladium alloy membrane (50), and reacting the purified hydrogen gas (H2)with nitrogen gas (N2) to produce ammonia (NH3).