13results about How to "Lower potential" patented technology

The invention relates to the field of battery material recovery, and provides a method for separating and regenerating waste lithium battery cathode graphite, which realizes high-efficiency low-damage separation of copper foil and graphite through a combined process of complex acid ultrasonic separation, anionic flocculant purification and ball-milling roasting, and simultaneously removes metal impurity residues in graphite. The whole process is environment-friendly, energy-saving, simple to operate, high in recovery efficiency and easy to industrially popularize.

The application relates to a scale-inhibiting alloy and a preparation method thereof and a scale-inhibiting sheet manufactured from the scale-inhibiting alloy. The scale-inhibiting alloy comprises the following components: 55wt%-70wt% of Cu, 15wt%-30wt% of Zn, 5wt%-15wt% of Ni, 0.5wt%-3wt% of Si, 1wt%-5wt% of P, 0.001wt%-0.05wt% of a modifying element, and the balance of inevitable impurities, wherein the modifying element is one or more of B, Ti and Zr. The scale-inhibiting alloy adds the Si element for strengthening, so as to improve the mechanical properties and corrosion resistance; the Zn element is added as a negative electrode and the P element is added as a positive electrode, the alloying forms alpha phase+beta phase+multi-element brittle compound phase, can well excite the active current, and prevents the generation of water scale. The scale-inhibiting alloy has low production cost, meets the comprehensive requirements of cost, processing performance, corrosion resistance, mechanical properties, health and market acceptance of water treatment products, and has a good application prospect.

This invention discloses a low-corrosion chloride molten salt heat transfer and storage medium, method, and application, belonging to the field of molten salt thermal storage technology. The high-heat-capacity, low-corrosion carbonate molten salt heat transfer and storage medium of this invention is composed of 18%~22% potassium chloride, 6%~10% sodium chloride, 1%~3% aluminum powder, 1%~3% magnesium powder, 1%~3% zinc powder, with the remainder being zinc chloride. Its key feature is the introduction of metal powder into the molten salt, which not only achieves excellent thermal storage performance at 600℃~800℃, but also reduces corrosion by utilizing the potential regulation ability of dissolved metal ions and the formation of highly active [Al] from gaseous chloride products through physical and chemical adsorption. This low-corrosion chloride molten salt heat transfer and storage medium achieves excellent thermal storage performance and low corrosivity, and can be applied in solar thermal power generation and molten salt energy storage.

The invention discloses a high-performance stainless steel oxygen evolution electrode and its application. The electrode is prepared by the following steps: step 1: pre-treating the surface of the stainless steel to remove impurities on the surface; step 2: placing the stainless steel treated in step 1 in a chloride solution, using a constant current density method to use the stainless steel as an anode for anodic corrosion for 2 to 5 minutes, and then cleaning and drying the stainless steel to obtain an anodic corrosion stainless steel electrode; wherein the concentration of chloride in the chloride solution is 3 to 5 wt%, and the current density during anodic corrosion is 300 to 500 mA / cm 2 ; Step 3: placing the stainless steel electrode treated in step 2 in an alkaline solution, using the stainless steel as an anode for electrolysis, to obtain the stainless steel oxygen evolution electrode; wherein the concentration of the alkali in the alkaline solution is 1 to 2 mol / L, and the current density during electrolysis is 400 to 600 mA / cm 2 , the electrolysis time is 1 to 3 hours.

The application discloses the technical field of electroplating wastewater treatment high-value metal recovery system for electroplating wastewater, including electrolytic cell and electrolytic mechanism, electrolytic cell is connected with infusion tube, infusion tube is connected with electronic flowmeter, electrolytic cell top is detachably connected with cover body, cover body is provided with observation ring groove, cover body is fixedly connected with camera unit; The inside lower side of the electrolytic cell is provided with a sedimentation plate and a stirring unit, the sedimentation plate is in sliding fit with the inner side wall of the electrolytic cell, the bottom of the electrolytic cell is fixedly connected with a first weighing sensor, and the detection end of the first weighing sensor is in abutment with the bottom of the sedimentation plate; The electrolytic mechanism includes a controller, a driving unit, an adjusting unit and an electrolytic unit. The application reduces the generation of concentration polarization and activation polarization phenomenon in the process of electroplating wastewater metal treatment and recovery, recovers the wastewater metal in an efficient state, estimates the treatment and recovery effect of the wastewater metal, and improves the qualified rate of wastewater metal treatment and recovery.

The present invention discloses a methoxylated glabridin analogue, a preparation method and an application thereof. Experiments have shown that the methoxylated glabridin analogue MG01 has a dual-target agonist effect on ERβ / PGC-1α. In addition, MG01 has a good effect in treating Aβ 1‑42 In the constructed mouse hippocampal neuron cell HT-22 model, the cell activity damage can be significantly reduced. Methoxylated glabridin analogue MG01 inhibits Aβ 1‑42 MG01 can reverse the Aβ-induced decrease in mitochondrial membrane potential, increase in reactive oxygen species, and mitochondrial damage. 1‑42 The protein expression levels of induced mitochondrial biogenesis-related proteins PGC‑1α, NRF2, and TFAM indicate that MG01 activates ERβ / PGC‑1α, improves reactive oxygen species and mitochondrial function in cell models, exerts a neuroprotective effect, and thus prevents and treats Alzheimer's disease in women.

The application discloses a small-molecule peptide and application, relates to the technical field of bioactive peptides, and aims to provide a new anti-inflammatory small-molecule peptide. The amino acid sequence of the small-molecule peptide is phenylalanine-leucine-leucine-proline-arginine (FLLPR). The application can significantly inhibit the overproduction of NO and ROS in macrophages induced by lipopolysaccharide, effectively reduce the release of proinflammatory cytokines interleukin-6 and interleukin-1 beta, and can be used for preparing a medicine for preventing, relieving or treating inflammation induced by lipopolysaccharide.

The invention belongs to the technical field of biological medicines, and particularly relates to a bisphenol compound for inducing ferroptosis and application thereof. According to the invention, HCC cells are treated by TMBPS, and lipid peroxide, Fe < 2 + >, malondialdehyde, reduced glutathione or oxidized glutathione, and mitochondrial morphology and potential in the HCC cells are detected. Target spots of TMBPS are predicted through a molecular docking method, and verification is carried out through quantitative real-time polymerase chain reaction, western blot and cell heat transfer experiments. The result of the embodiment shows that the TMBPS can induce ferroptosis of the HCC cells by increasing the levels of lipid peroxide, Fe < 2 + > and malondialdehyde in the cells and reducing the ratio of reduced glutathione or oxidized glutathione and the mitochondrial potential at the same time, and furthermore, the cell death triggered by the TMBPS in the HCC cells is related to ferroptosis and is mediated by inhibiting SLC7A11 expression.

The invention discloses a flyback double-tube voltage conversion circuit, which comprises a primary circuit, a secondary circuit, an auxiliary circuit and a double-tube flyback transformer, and is characterized in that the double-tube flyback transformer comprises a double-tube flyback circuit, a primary winding and a secondary winding; by arranging the primary side circuit, the secondary side circuit, the auxiliary circuit and the double-tube flyback transformer, the auxiliary circuit can increase the potential of the first end of the primary side winding and reduce the potential of the second end of the primary side winding before the primary side winding is charged, so that the voltage between the first electrode and the second electrode of a power switch tube in the primary side circuit can be adjusted; therefore, the voltage between the first electrode and the second electrode is close to 0 before the power switch tube is conducted, thereby facilitating the realization of soft switching. Meanwhile, the double-transistor flyback circuit in the double-transistor flyback transformer has the advantages of being high in conversion efficiency, low in requirement for voltage resistance of a power switch tube and the like, and therefore the double-transistor flyback transformer can be well suitable for application scenes with high input voltage.

The present invention relates to the field of semiconductor technology, and specifically discloses a power semiconductor device, including a semiconductor substrate, which is divided into a cell area and a terminal protection area, wherein the semiconductor substrate includes a first conductive type substrate and a first conductive type epitaxial layer, and a second conductive type body area is arranged on the surface of the first conductive type epitaxial layer; a first type of groove is arranged in the second conductive type body area located in the cell area, and the bottom of the first type of groove extends into the first conductive type epitaxial layer; at least one second type of groove is arranged in the second conductive type body area located in the terminal protection area near the cell area; the groove depth of the second type of groove is less than the groove depth of the first type of groove, and the groove opening width of the second type of groove is less than the groove opening width of the first type of groove. The present invention also discloses a method for manufacturing a power semiconductor device. The power semiconductor device provided by the present invention improves the withstand voltage reliability of the power semiconductor device.

The invention discloses a self-supporting FeCo alloy phosphide electrocatalyst as well as a preparation method and application thereof. The preparation method of the electrocatalyst comprises the following steps: S1, pretreating a conductive substrate; s2, preparing a FeCo precursor stacked by an iron-cobalt hydroxide from the conductive substrate, an iron source and a cobalt source through a hydrothermal method; and S3, performing chemical vapor deposition on the catalytic base layer by using a phosphorus source to prepare the self-supporting FeCo alloy phosphide electrocatalyst, wherein the self-supporting FeCo alloy phosphide electrocatalyst is in a nano sheet shape or a pine needle shape. The catalyst has the advantages of low overpotential, good stability, low cost, simple preparation method and the like.

The application provides a semiconductor device and a preparation method thereof, and relates to the technical field of semiconductors. A first gate field plate electrically connected with a gate metal is added between a source field plate and a drain metal, and the first gate field plate is electrically connected with the gate metal through a resistor. In this way, the first gate field plate has a lower potential. On one hand, the first gate field plate can shield the electric field between the drain and the gate, and can further deplete the two-dimensional electron gas at the channel, so as to reduce the Cgd of the device, improve the gain and stability of the device, and avoid self-excitation of the device. On the other hand, the first gate field plate can shield the electric field between the drain and the source, reduce the Cds of the device, and thus improve the drain efficiency of the device.

The invention discloses a magnetic control bouncing dust removal microstructure space suit, and relates to the technical field of space suits. The lunar dust removing device is used for removing lunar dust on the astronaut and preventing the lunar dust from damaging astronauts. The space suit provided by the invention comprises an electromagnetic coil and a magnetic control bounce mechanism, the magnetic control bouncing mechanism comprises an outer magnetic control bouncing mechanism and an inner magnetic control bouncing mechanism; the outer magnetic control bounce mechanism is sewn on the outermost layer of the space suit; the inner magnetic control bounce mechanism is sewn between the outermost layer of the space suit and the heat insulation layer; and the electromagnetic coil is used for controlling the inner and outer magnetic control bounce mechanisms to perform vibration dust removal. The outer magnetic control bounce mechanism is used for removing large-particle-size lunar dust, and the inner magnetic control bounce mechanism is used for capturing small-particle lunar dust. The invention is suitable for the space suit with the dust removal function.