23 results about "Ruthenium oxide" patented technology

A method includes forming a semiconductor region, forming a gate spacer over the semiconductor region, forming a source / drain region aside of the semiconductor region, wherein the source / drain region is of p-type, and forming a gate dielectric over the semiconductor region. The gate dielectric is formed in a space between opposing portions of the gate spacer. A ruthenium oxide layer is formed over the gate dielectric, and acts as a part of a work-function layer of a gate electrode. The method further includes incorporating silicon into the ruthenium oxide layer.

The application discloses a Ru-RE2O3 catalyst and a preparation method and application thereof, and the Ru-RE2O3 catalyst comprises a rare earth metal oxide RE2O3 shell and Ru inside. The catalyst is prepared from a carbon sphere carrier, a ruthenium salt and a rare earth metal salt through first calcination and second calcination. The first calcination is used for converting the ruthenium salt and the rare earth metal salt into corresponding oxides, and the second calcination is carried out under a reducing protective gas atmosphere, and the ruthenium oxide is selectively reduced, so that the Ru-RE2O3 catalyst with a core-shell structure is finally obtained. Compared with existing catalysts, the catalyst of the application forms a heterojunction between ruthenium and rare earth oxides and is uniformly loaded on the surface of the carbon sphere, the utilization rate of active sites is high, and the catalyst exhibits excellent water electrolysis catalytic activity, good mass transfer efficiency and stable cycle performance.

This invention relates to the field of biomass degradation technology, specifically to a ruthenium-based catalyst Ru@RuO2 supported by zirconium phosphate, its preparation method, and its application in catalyzing the hydrogenolysis of lignin. This invention is based on the in-situ reduction of elemental ruthenium to needle-like ruthenium oxide supported by amorphous zirconium phosphate, constructing a RuO2 / zirconium phosphate composite nanomaterial. This material can efficiently catalyze the hydrogenolysis of alkali-degraded lignin and model compounds such as α-O-4 and 4-O-5. Furthermore, the ruthenium nanoparticles generated from the in-situ reduction on ruthenium oxide exhibit high stability and can be reused multiple times.

The application relates to a ruthenium oxide oxygen evolution catalyst with a surface presenting a conical protruding structure and a preparation method and application thereof. The preparation method of the ruthenium oxide oxygen evolution catalyst with the surface presenting the conical protruding structure comprises the following steps: (1) mixing a RuCl3 solution and a urea solution and performing normal-pressure heating, performing suction filtration, washing, and drying to obtain a ruthenium precursor; (2) performing programmed temperature calcination on the ruthenium precursor, and obtaining the ruthenium oxide oxygen evolution catalyst with the surface presenting the conical protruding structure after cooling.

This invention discloses a method for preparing ruthenium oxide nanoparticles. The method includes: Step 1, using ruthenium acetate as a raw material, a certain amount is added to acetic acid to prepare a ruthenium acetate solution, and excess concentrated ammonia is added to the ruthenium acetate solution. The mixture is stirred to react and obtain a ruthenium hydroxide suspension. Step 2, the ruthenium hydroxide suspension is uniformly passed into a high-temperature centrifugal drying device. The ruthenium hydroxide suspension is dried and decomposed in the drying chamber to obtain ruthenium oxide nanoparticles. This invention uses acetic acid as a solvent, which allows for complete dissolution of ruthenium acetate, increases the ruthenium content in the solution, and increases the final ruthenium oxide yield. Simultaneously, the addition of excess concentrated ammonia ensures that all ruthenium ions in the solution can form suspended ruthenium hydroxide particles. Furthermore, centrifugal drying prevents the agglomeration of ruthenium hydroxide during its conversion to ruthenium oxide, while also improving the yield and quantity of ruthenium oxide, ultimately obtaining ruthenium oxide nanoparticles. The ruthenium oxide nanoparticles prepared by this invention have advantages such as high purity and small particle size, making them suitable for the preparation of various resistive components and industrial catalysis. At the same time, the preparation process has the advantages of simplicity, high yield, and ease of industrial production.

This invention discloses a method for preparing an electrically pulsed perovskite oxygen evolution reaction (OER) catalyst. The method involves overlapping electrodes on both sides of an SRIO thin film prepared from strontium nitrate, ruthenium oxide, and iridium oxide. Under an argon atmosphere, the SRIO thin film is subjected to a 2-second electrical pulse treatment via an external voltage source, with an electric field strength of 40 V / cm. This invention utilizes ruthenium oxide and iridium oxide powders as ruthenium and iridium sources, making it easier to obtain high-purity SRIO@E catalysts. This provides significant guidance for the synthesis of noble metal-based perovskite materials. Through a simple and easy-to-implement electrical pulse treatment strategy, this invention can remove some oxygen atoms from the catalyst, increasing the number of unpaired electrons available for the catalytic reaction and improving reaction activity. Furthermore, this electrical pulse treatment strategy is simple and controllable, has universal applicability, and is expected to meet the needs of industrial production.

An example thin-film transistor includes a source including a body of ruthenium metal, a drain, a body of semiconductor channel material extending between the source and the drain, and a source-channel interface positioned between the source and the body of semiconductor channel material. The source-channel interface is in contact with the body of ruthenium metal of the source and the body of semiconductor channel material. The source-channel interface is formed of ruthenium oxide and has a root mean square roughness of less than or equal to 0.3 nm. Such a source-channel interface may be made using reactive sputtering or ozone oxidation.

The application relates to a ruthenium dioxide catalyst and a preparation method and application thereof, relates to the technical field of water electrolysis catalysts, and solves the problems of complicated preparation and poor stability of existing ruthenium-based oxygen evolution catalysts in the prior art. In the application, gelatin and a carbonate are dissolved in water, water bath stirring is carried out, and mixed solution A is obtained; a ruthenium salt is dissolved in water, ultrasonic treatment is carried out, and mixed solution B is obtained; mixed solution B is poured into mixed solution A, and after stirring and mixing, a gel is formed, which is a catalyst precursor; after calcination treatment, the ruthenium dioxide catalyst is obtained. The application has the advantages of low cost and good catalytic stability, and has a wide application prospect as a proton exchange membrane water electrolysis anode catalyst.

The application discloses nano-ruthenium dioxide and a preparation method thereof, and belongs to the technical field of materials. The preparation method is a homogeneous hydrothermal method for preparing the product. By setting parameters of a reaction system, the nano-ruthenium dioxide product with high yield, high purity, high specific surface area and high crystallinity can be prepared in a short time.

This invention discloses a method for preparing dimethyl sulfoxide, relating to the field of electrochemical technology. The method for preparing dimethyl sulfoxide includes the following steps: passing gaseous dimethyl sulfide and water vapor into the anode of an electrochemical reaction device, passing water into the cathode of the electrochemical reaction device, and applying a DC voltage between the anode and cathode to carry out an electrochemical reaction to obtain a product containing dimethyl sulfoxide; wherein, the anode includes a composite matrix and a perfluorosulfonic acid ionomer loaded on the surface of the composite matrix; the composite matrix includes a first substrate and an anti-corrosion coating disposed on the surface of the first substrate, the anti-corrosion coating being made of at least one of ruthenium oxide, iridium oxide, antimony-doped tin oxide, tantalum oxide, and lead oxide, which solves the problems of high energy consumption, low product yield and selectivity in the preparation of dimethyl sulfoxide by liquid-phase electrochemical oxidation method in the prior art.

This disclosure provides a novel positive electrode active material for chloride ion batteries, a method for producing the same, a positive electrode composite material for chloride ion batteries containing such a positive electrode active material, and a chloride ion battery containing such a positive electrode composite material. [Solution] The positive electrode active material for chloride-ion batteries of this disclosure is strontium ruthenium oxide having a layered perovskite structure. The method of manufacturing the positive electrode active material for chloride-ion batteries of this disclosure comprises the following steps: (a) mixing strontium carbonate and ruthenium oxide to prepare a raw material mixture, (b) pelletizing the raw material mixture to form pellets, and (c) firing the pellets. The positive electrode composite material for chloride-ion batteries of this disclosure comprises the positive electrode active material for chloride-ion batteries of this disclosure. The chloride-ion battery 1 of this disclosure has a positive electrode active material layer 20, and the positive electrode active material layer contains the positive electrode composite material for chloride-ion batteries of this disclosure.

The invention relates to an assembly composed of an electrolytic cell component of an electrolytic cell of an electrolysis device and an anode-side catalyst layer (15) arranged on the electrolytic cell component, wherein the anode-side catalyst layer (15) comprises first particles (19) of platinum (Pt), second particles (20) of iridium (Ir) and / or ruthenium (Ru) and / or iridium oxide (IrOX) and / or ruthenium oxide (RuOX) and / or mixed phases (IrRuOX) of these oxides, and an ionomer (21), and wherein the first particles (19) and the second particles (20) are adhesively bonded to one another exclusively by means of the ionomer (21).

A method comprises the following: fabricating a semiconductor region; fabricating a gate spacer over the semiconductor region; fabricating a source / drain region adjacent to the semiconductor region, wherein the source / drain region is a p-source / drain region; and fabricating a gate dielectric over the semiconductor region. The gate dielectric is fabricated in a space between opposing sections of the gate spacer. A ruthenium oxide layer is fabricated over the gate dielectric and serves as part of a gate electrode exit layer. The method further comprises incorporating silicon into the ruthenium oxide layer.

This invention provides a method for preparing androstane-3,6,17-trione (E,Z)-3-[O-(2-aminoethyl)]oxime hydrochloride, comprising the following steps: benzophenone oxime reacts with 2-chloroethylamine hydrochloride in dimethyl sulfoxide, followed by acid-base adjustment, toluene extraction, hydrolysis with concentrated hydrochloric acid to remove the protecting group, and crystallization to obtain high-purity 2-aminoethylamine hydrochloride; androstane-3,6,17-triol is used as a raw material and oxidized under the catalysis of sodium bromate and ruthenium oxide (IV), quenched, separated, washed with water, and crystallized by solvent replacement with isopropanol to obtain androstane-3,6,17-trione; the 2-aminoethylamine hydrochloride solution is mixed and reacted with the trione in tetrahydrofuran solution at low temperature, followed by salting out, filtration, separation, washing with saturated brine and drying with magnesium sulfate, and purification by solvent replacement, water dissolution and concentration, and cooling crystallization to obtain the high-purity target product. This invention significantly improves the yield of the target product by optimizing reaction conditions, while achieving readily available raw materials, low cost, and industrialized production through traditional chemical reaction pathways.

The present invention belongs to the technical field of inorganic advanced nanometer materials, and particularly relates to a metal-doped ruthenium oxide nanometer material and a preparation method and use thereof. The metal-doped ruthenium oxide nanometer material is an acid-insoluble metal oxide doped ruthenium oxide nanometer material or a transition metal doped ruthenium oxide nanometer material. A molecular formula of the acid-insoluble metal doped ruthenium oxide nanometer material is MxRu1-xO2, wherein M is acid-insoluble metal, and the acid-insoluble metal is selected from: one or more of niobium, titanium, zirconium, hafnium, tungsten, molybdenum, and tantalum; or, a molecular formula of the transition metal doped ruthenium oxide nanometer material is MxRu1-xO2, M is transition metal, and the transition metal is selected from: one of Cr, Mn, Ge, In, Sn, Sb, Nb, Ti, Zr, Hf, W, Mo, Ta, and Pt. The metal of the present invention is highly uniformly dispersed in a ruthenium oxide material, such that active-site ruthenium is well controlled, and the stability and activity of the material during an oxygen evolving reaction are improved.

Disclosed is a thick film resistor paste which, while using a lead borosilicate glass as an insulating material, has no appearance crack abnormality and has sufficient surge resistance, a thick film resistor body using the thick film resistor paste, and an electronic component provided with the thick film resistor body. The thick film resistor paste contains a ruthenium oxide-containing glass powder and an organic vehicle. The ruthenium oxide-containing glass powder contains 10 mass% or more and 60 mass% or less of ruthenium oxide. In the glass composition, 60 mass% or less of silicon oxide, 30 mass% or more and 90 mass% or less of lead oxide, and 5 mass% or more and 50 mass% or less of boron oxide are contained with respect to 100 mass% of the glass components. The total content of the silicon oxide, the lead oxide, and the boron oxide is 50 mass% or more with respect to 100 mass% of the glass components.

The application discloses a flexible wearable long-term stable ruthenium oxide pH sensing electrode, and belongs to the technical field of sensing and detection. The ruthenium oxide pH sensing electrode comprises, from bottom to top, a flexible substrate layer, an electrode, a pH sensitive layer and a polymer layer. The pH sensitive layer is composed of ruthenium oxide, conductive fillers and a polymer. The polymer layer is combined to enhance the electrode performance. The structures of the electrode can be processed by a drop coating method or a printing method, avoiding complex and harsh processing procedures. The electrode is suitable for electrode processing on common flexible materials, has good processing consistency, and is expected to realize batch production. In the use process, the electrode is combined with simple and convenient electrode electroactivation treatment, and the electrode shows excellent sensitivity in the detection of the pH in the physiological range, shows good storage and use stability, can meet the application requirement of long-time continuous monitoring of body fluid by a flexible wearable sensor, and has wide practical application potential.

This invention relates to a lanthanum-hafnium-tantalum-tungsten multi-component co-doped ruthenium dioxide catalyst, its preparation method, and its application in acidic oxygen evolution reaction (OER). The preparation method involves dissolving ruthenium, lanthanum, hafnium, tantalum, and tungsten sources in a solvent, removing the solvent to obtain a precursor powder. A molten salt is then heated to melt, followed by the addition of the obtained precursor powder, and the reaction is carried out at a constant temperature. The resulting reaction solution is subjected to solid-liquid separation, and the solid phase is collected; the obtained solid phase is the lanthanum-hafnium-tantalum-tungsten multi-component co-doped ruthenium dioxide acidic OER catalyst. The catalyst obtained by this invention exhibits excellent OER catalytic performance in a 0.5 mol / L H₂SO₄ electrolyte at 10 mA / cm⁻¹. 2 The oxygen evolution overpotential is only 158 mV at current density, and it can achieve long-term stable operation for more than 1800 hours.

A method for forming a ruthenium oxide film according to an embodiment of the present invention may include the steps of: forming a ruthenium film by spraying a precursor containing ruthenium (Ru) toward a substrate; forming a ruthenium oxide film by spraying an oxygen-containing gas toward the ruthenium film; and forming a plasma to expose the ruthenium oxide film to the plasma. Therefore, according to embodiments of the present invention, a ruthenium oxide film with a high oxygen content can be formed. This improves the quality of the ruthenium oxide film, thereby improving the performance of the ruthenium oxide film provided in semiconductor devices.

This invention relates to the field of piezoelectric materials and discloses a method for preparing a high-fatigue-resistant lead-free piezoelectric thin film. The method uses magnetron sputtering to directly prepare a lead-free piezoelectric thin film with a top electrode. The thin film layer of the lead-free piezoelectric thin film is a pure-phase potassium sodium niobate ceramic. An adhesive layer is disposed between the pure-phase potassium sodium niobate and the top electrode layer. The sputtering target for the adhesive layer is one or more of titanium, zirconium, ruthenium, titanium oxide, ruthenium oxide, and lanthanum nickelate. During the annealing process, the adhesive layer undergoes oxidation to form an oxide layer, which significantly improves the adhesion of the adhesive layer to the top electrode layer. The adhesive layer also significantly inhibits the volatilization of alkali metal elements in the thin film layer and significantly improves the fatigue resistance of the potassium sodium niobate thin film. The lead-free piezoelectric thin film prepared by this method exhibits high fatigue resistance at 10°C. 8 After the second electrical fatigue cycle, the residual polarization showed no significant decay.

This invention relates to the field of fuel cell catalytic materials technology, specifically to a Pt anti-reverse electrode catalyst supported on molybdenum-ruthenium oxide for fuel cell anodes and its preparation method. The catalyst uses molybdenum-ruthenium oxide with a loose, porous structure as a support, and highly dispersed Pt nanoparticles as the active component, wherein Ru (Ru) serves as the active site for the oxygen evolution reaction (OER) under reverse electrode conditions. The method first utilizes a glucose blowing method and urea pyrolysis process to prepare a nitrogen-doped molybdenum-ruthenium oxide support through two-stage heat treatment under an oxidizing atmosphere. Subsequently, Pt nanoparticles are uniformly loaded onto the support surface using a polyol reduction method under an alkaline environment and an inert atmosphere. This invention utilizes the unique support structure and the OER activity of Ru to efficiently catalyze the OER reaction during anode reverse electrode conditions, suppressing excessive anode potential rise, thereby avoiding carbon support corrosion, protecting the integrity of the catalyst layer structure, and improving the durability and service life of proton exchange membrane fuel cells.

The application provides a chlorine-resistant chromium-ruthenium oxide catalyst based on seawater electrolysis, a preparation method and application, and belongs to the technical field of electrocatalytic materials. The method comprises the following steps: dissolving a ruthenium metal salt and a chromium metal salt in an ethanol solution to obtain a mixed solution; adding a citric acid solution to the mixed solution, mixing and then drying to obtain a dried powder; calcining the dried powder in air to obtain a CrRuO x Chromium-ruthenium oxide catalyst. The chlorine-resistant chromium-ruthenium oxide catalyst prepared by the application can adsorb OH ‑ or water molecules by means of chromium as a Lewis acid site, which not only realizes hydroxyl overflow to effectively repel chloride ions, inhibits the competitive chlorine evolution reaction of the anode in seawater electrolysis, and relieves the corrosion of chloride ions on the catalyst, but also can regulate the interface hydrogen bond network to optimize the adsorption of reaction intermediates, and significantly improves the catalytic activity.

An arrangement comprising an electrolysis cell component of an electrolysis cell of an electrolysis device and an anode-side catalyst layer (15) arranged on the electrolysis cell component, wherein the anode-side catalyst layer (15) comprises first particles (19) of platinum (Pt), second particles (20) of iridium (Ir) and / or of ruthenium (Ru) and / or of iridium oxide (IrOX) and / or of ruthenium oxide (RuOX) and / or of mixed phases (IrRuOX) of these oxides and an ionomer (21), and wherein the first particles (19) and the second particles (20) are bonded to each other exclusively via the ionomer (21).