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100results about How to "Lower starting voltage" patented technology

Electrolysis method for producing high-purity hydrogen peroxide and hydrogen with low cost

The invention provides an electrolysis method for producing high-purity hydrogen peroxide and hydrogen with low cost. The electrolysis method includes the steps that a pure-phase single crystal wafer or a single crystal wafer doped with bismuth vanadate serves as an anode of an electrolytic cell, wherein the crystal orientation of the single crystal wafer is {111} or {110} or {100} or {010}; and after alkaline electrolyte is added to the electrolytic cell, the bias voltage is externally applied to the anode and a cathode of the electrolytic cell, hydrogen peroxide is generated by the anode, and hydrogen is generated by the cathode. Compared with the prior art, by the adoption of the electrolysis method, expensive platinum is replaced with single crystal semiconductor oxide serving as the electrolytic anode, and production cost is lowered greatly. Compared with a platinum electrode of traditional electrolytic sulfuric acid or traditional electrolytic sulfate, by the adoption of the electrolysis method, the required initial voltage is smaller, and the electricity energy utilization efficiency is higher than that of the platinum electrode. By the adoption of the electrolysis method, the electrode material cost is lowered effectively, the electricity energy utilization efficiency is improved, meanwhile high-purity hydrogen peroxide and hydrogen are produced, and the electrolysis method has the important industrial application value.
Owner:李国岭

Preparation and surface modification methods of ferrous titanate/iron trioxide composite photoelectrode

ActiveCN106119882AEasy to prepareHigh photoelectrocatalytic water splitting performanceElectrodesInorganic saltsDecomposition
The invention provides preparation and surface modification methods of a ferrous titanate/iron trioxide composite photoelectrode and relates to the field of materials. The preparation method of the composite photoelectrode includes the steps that FTO conducting glass is washed; the FTO conducting glass is placed in an inorganic salt water solution of titanium in the manner that the conducting face is downward, and the FTO conducting glass is soaked for 10-60 min at the temperature of 60-80 DEG C; the washed FTO conducting glass is heated for 10-30 min at the temperature of 150-200 DEG C; the heated FTO conducting glass is placed in a reaction still containing inorganic salt of iron and a mineralizer water solution, and the reaction still is heated for 2-5 h at the temperature of 60-100 DEG C; and the FTO conducting glass obtained after the reaction in the reaction still is taken out and washed, the washed FTO conducting glass is annealed for 1-3 h at the temperature of 500-600 DEG C and then annealed for 10-30 min at the temperature of 700-800 DEG C, and the nano ferrous titanate/iron trioxide composite photoelectrode is prepared. The preparation method of the composite photoelectrode is simple, experimental conditions are easy to control, and the prepared composite photoelectrode has high photoelectrocatalysis water decomposition performance.
Owner:SUZHOU UNIV

Sewage treatment microbial carrier and preparation method thereof

The invention discloses a sewage treatment microbial carrier, which consists of a magnetic carbon fiber bracket and a polypyrrole film layer, wherein microorganisms are fixed on the surface of the polypyrrole film layer; wherein the magnetic carbon fiber bracket is formed by weaving composite fiber bundles, and is obtained through pre-oxidation and carbonization treatment; the composite fiber is apolyacrylonitrile fiber doped with graphene, and magnetic iron oxide nanoparticles are uniformly distributed on the surface and inside the composite fiber. The iron oxide nanoparticles generated in situ have good photocatalytic activity, and can promote local graphitization of the carbon fibers and cooperate with graphene to improve the conductivity of the carbon fibers; the magnetic carbon fiberbracket is used as a working electrode; a polypyrrole film is electrochemically deposited on an iron oxide photocatalyst, so that microorganisms are effectively fixed and cannot be embedded, microorganism loading and proliferation are facilitated, the iron oxide photocatalyst and the microorganisms can be in full contact with pollutants in sewage, photocatalytic degradation and microorganism treatment are synchronously carried out, and the sewage treatment efficiency is greatly improved.
Owner:山东高速环保科技有限公司

Modified ferrihydrite/hematite nano-rod core-shell structure compound light anode and application thereof

The invention discloses a modified ferrihydrite/hematite nano-rod core-shell structure compound light anode and an application thereof. A preparation method of the light anode includes the steps: S1 preparing hematite growth solution, placing a conducting substrate into the hematite growth solution, synthesizing a FeOOH film on the conducting substrate by a solvent thermal synthesis method, washing the FeOOH film, and drying the washed FeOOH film for standby application; S2 performing high temperature annealing on the conducting substrate acquired in the step S1, and cooling the conducting substrate to obtain the conducting substrate with the hematite film surface; S3 preparing ferrihydrite growth solution, placing the conducting substrate acquired in the step S2 into the ferrihydrite growth solution, heating mixture, washing the conducting substrate after reaction is completed, and drying the washed conducting substrate to obtain the modified ferrihydrite/hematite nano-rod core-shellstructure compound light anode. According to the method, a ferrihydrite thin layer is loaded on the surface of the hematite to prepare the core-shell structure compound light anode which is resistantto light corrosion and good in photoelectrochemical property and stability, and the compound light anode can be used for decomposing water to generate hydrogen and is high in catalytic efficiency andstable in catalytic effect.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Quartz clock and watch rotor wheel

The invention discloses a quartz clock and watch rotor wheel which is low in starting voltage and power consumption. The rotor wheel comprises a wheel disc, wherein the edge of the cross section of the wheel disc is provided with at least three symmetric edge lugs which are the same in thickness, the outmost edges of all the edge lugs are located on the same excircle with the axis of the wheel disc as a center, and the wall thickness of the largest transverse portion of each edge lug is 0.01 mm-0.3 mm larger than that of other portions of the disc wall of the wheel disc. According to the rotor wheel, on the condition that injection molding is safely formed, the thickness of the disc wall of the wheel disc is effectively reduced, and accordingly the weight is correspondingly reduced, namely rotation inertia of the rotor wheel can be effectively reduced; due to the action of the edge lugs, during assembling, the inclination angle of the rotor wheel is smaller than the inclination angle of a rotor wheel which is assembled in the prior art. On the condition that identical materials and magnetic steel are used, the rotation inertia of the rotor wheel is effectively reduced, and accordingly the starting voltage and the power consumption are low; additionally, the rotation inertia is small, and accordingly the rotor wheel is reliable when moving.
Owner:吴中一

Multi-electrode microsensor for detecting copper metal vapor concentration

The invention discloses a multi-electrode microsensor for detecting copper metal vapor concentration. The microsensor comprises a discharge cathode comprising a metal discharge needle array, a first insulated support, an extraction electrode, second insulated supports and a collecting electrode, wherein the discharge cathode is grounded, and generates a strong electric field in a small local area at the tips of metal discharge needles, thereby realizing the field emission of electrons; the first insulated support is used for isolating the discharge cathode from the extraction electrode; the extraction electrode is connected with a direct current power supply, and is used for extracting positive ion current generated by the ionization, collision and diffusion of detected gas to realize the separation of the electrons from the positive ion current; the second insulated supports are used for isolating the extraction electrode from the collecting electrode; the collecting electrode is connected with the direct current power supply, and the positive ion current is accelerated by the electric field so as to be absorbed by the collecting electrode. According to the microsensor, the detected gas can weakly discharge electricity under the conditions of normal temperature, atmospheric pressure and low voltage, and corresponding discharge current can be obtained on the collecting electrode; the microsensor can be used for detecting the copper metal vapor concentration in an arc extinguishing chamber of a circuit breaker.
Owner:XI AN JIAOTONG UNIV

Sulfur-doped NiFe(CN) 5NO electrolyze water oxygen evolution catalyst by using solvothermal preparing method and application thereof

The invention belongs to the technical field of preparation of functional nano materials, and relates to preparation of an electrolytic water evolution oxygen catalyst, and in particular relates to asulfur-doped NiFe(CN) 5NO electrolyze water oxygen evolution catalyst by using a solvothermal preparing method and application thereof. The method comprises the following steps that equal volume of Na2Fe(CN)5 NO. 2H2O solution is added into a Ni(NO3).6H2O solution, and uniform stirring is performed, after leaving the solution to stand, centrifugal separation, washing and vacuum drying are carriedout on the precipitates, NiFe(CN)5NO nano-particles are obtained, and then the NiFe(CN)5NO nano-particles are ultrasonically dispersed in absolute ethyl alcohol, a sulfur source is added, after ultrasonically dispersing and uniformly stirring are performed, the mixture is transferred into a reaction kettle, wherein reaction time is carried out for 8-16 hours at the temperature of 120-200 DEG C, then naturally cooling is performed, a product S-NiFe(CN)5NO is obtainedthe after the centrifugal separation, the washing and the vacuum drying are performed on the product; the morphology of the prepared product is regular, and the particle size is about 40 micron; and the S-NiFe(CN)5NO has the advantages of excellent in electrocatalytic activity and good in stability when being used as an electrolytic oxygen evolution reaction catalyst. According to the method, compared with a commercial noble metal catalyst, the prepared electrolytic water oxygen evolution reaction catalyst has better catalytic performance; and the preparation method is simple, the controllability is good, the cost is low, and the industrial implementation is easy.
Owner:BEIJING CEI TECH

SoC type integrated circuit dynamic ageing device and method

InactiveCN110441672ASolve the dynamic aging problemImprove use reliabilityElectronic circuit testingAge methodLow voltage
The invention discloses a SoC type integrated circuit dynamic ageing device and method. A SoC device is connected with each of a power module, a signal source module, a program memorizer module, an online debugging module, an output indication module and a heat stress control module; the power module can provide multiple paths of low-voltage power supplies at the same time; the signal source module is used for sending out an signal excitation source; the program memorizer module performs storage by adopting a general NORFLASH; the online debugging module realizes the device detailed test result output and the online debugging function through computer serial debugging software; the output indication module drives an LED light-emitting tube to perform indication by utilizing the SoC generaloutput interface; and the heat stress control module is used for temperature detection and radiation processing. The invention can provide the ageing method of the system for the SOC type device, thedynamic ageing problem of the device is solved, so that the device can apply enough electric stress under a specified environment, and the early failure of the device can be exposed as early as possible, the high-temperature dynamic ageing aim is reached, and the use reliability of the device is improved.
Owner:西安太乙电子有限公司
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