51results about How to "Synthetic even" patented technology

The invention provides a nitrogen-doped carbon nano-array/cobalt ferrite material obtained by calcining a polyaniline-iron-cobalt metal organic framework, the nano material is a double-metal oxide, and has a large specific surface area, a plurality of catalytic sites, and higher catalytic efficiency. The polyaniline-iron-cobalt metal organic framework has good compatibility with various metal ions, a uniform multi-metal spinel can be easily synthesized from the polyaniline-iron-cobalt metal organic framework, the double-metal oxide and a conductive polymer are combined, so that advantages of different types of electrode materials can be combined with each other, and at the same time, nitrogen-doped carbon can be formed by polyaniline calcination, conductivity is further improved, and the defects of poor conductivity and poor stability of iron-cobalt oxides can be solved.

The invention relates to a reservoir forming and developing simulated experiment system and method for submarine natural gas hydrate. The reservoir forming and developing simulated experiment system and method for submarine natural gas hydrate consists of a fluid injection part, a hydrate synthesis/decomposition part and a withdrawal fluid metering part, wherein the fluid injection part comprisesa high-pressure displacement pump, a natural gas cylinder, a middle container and a seawater storage tank; the hydrate synthesis/decomposition part comprises a high-low-temperature test box, a high-pressure reaction kettle, a simulating straight well pipeline, a simulating horizontal well pipeline, a temperature sensor, a pressure sensor and a computer, wherein the high-pressure reaction kettle ispositioned in the high-low-temperature test box; fluid injection and withdrawal interfaces are uniformly distributed in the end cover and the wall surfaces of a kettle body; the pressure sensor and the temperature sensor are connected to the computer through guide-out wires; and the withdrawal fluid metering part comprises a back-pressure valve, a gas-liquid separator, a measuring barrel and a gas meter. The system can be utilized to perform experiments such as submarine natural gas hydrate synthesis simulation or submarine natural gas hydrate exploitation, is simple and convenient in operation, and can provide important support for submarine natural gas hydrate reservoir development technical evaluation and establishment.

This invention relates to a method for composing high performance and easy sintered ZrB2/Al2O3-Fe compound powder by self-spread high temperature recovery and ball-mill technology including: mixing ZrO2, B2O3 and Al powder uniformly and pressing to molding, then putting it in a self-spread high temperature composition device protected by Ar to ignite and fire it, which is crushed to get pure ZrB2-Al2O3 ceramic complex phase powder to be ball-milled with simple substance Fe powder to get a ZrB2/Al2O3-Fe compound powder.

The invention provides a preparation method for an aluminum-doped zinc oxide (AZO) nano array. The method is performed as follows: precisely controlling the concentration of chemical reaction solution by continuously injecting growing sources and doping sources at a constant speed to controllably prepare an aluminum-doped zinc oxide (AZO) array with high carrier concentration; compounding the aluminum-doped zinc oxide (AZO) array and a nickel oxide material to obtain a capacitor electrode material with high electricity capacity. The capacitor electrode material with high electricity capacity is attained in such a way that an aluminum-doped zinc oxide (AZO) array with high conductivity prepared by a continuous flow injecting method and a nickelnanosheet material with poor conductivity but high electricity capacity are combined. In comparison to a conventional hydrothermal method, the carrier concentration obtained from the preparation method provided in the invention increases three orders of magnitude. In the method, an aluminum-doped zinc oxide (AZO) material with high carrier concentration and a nickel oxide with poor conductivity are combined such that the advantages of the two materials are brought into full play and the electricity capacity of a capacitor is substantially increased. Beyond that, the continuous flow injecting and doping method provides a new idea for controllable precise doping. The method is simple in operation, cost-effective and enjoys great application prospects.

The invention belongs to the field of agricultural cultivation and particularly relates to a sweet potato seed processing method. The sweet potato seed processing method can significantly improve the emergence rate, the disease resistance and the yield of sweet potatoes, enhance quality of sweet potatoes and promote development of sweet potato cultivation industry.

The invention discloses a double-layer temperature control system for hydrate sediment long core composition and decomposition. The double-layer temperature control system for hydrate sediment long core composition and decomposition comprises a pressure chamber and a cooling system, a spacer layer is arranged inside the pressure chamber, a sediment layer and a composition temperature control layer are arranged inside the pressure chamber, an inlet end and an outlet end are respectively arranged on two sides of the sediment layer, the composition temperature control layer is placed outside the sediment layer and is tightly contacted with the sediment layer, and the composition temperature control layer comprises an inner temperature control layer and an outer temperature control layer. The cooling system comprises a first cooling system and a second cooling system, wherein the first cooling system is connected with the inner temperature control layer, the second cooling system is connected with the outer temperature control, the flow direction of cooling liquid in the inner temperature control layer is opposite to the flow direction of air in the sediment layer, and the flow direction of cooling liquid in the outer temperature control layer is the same with the flow direction of air in the sediment layer. According to the double-layer temperature control system for hydrate sediment long core composition and decomposition, the hydrate sediment long core can be fast and evenly composited in composition process, and constant environment temperature is provided for decomposition.

The application discloses a laser radar. The laser radar in the present application comprises a main shaft, a radar rotor, a base, a first mainboard, a second mainboard, an angle measuring assembly, apower supply assembly and a communication assembly. The first mainboard is fixedly arranged relative to the radar rotor and is arranged around a main shaft, and the second mainboard is fixedly arranged relative to the base and is closer to the base than the first mainboard; the angle measuring assembly, the power supply assembly and the communication assembly are disposed between the first mainboard and the second mainboard, and at least a portion of the angle measuring assembly, at least a portion of the power supply assembly, and at least a portion of the communication assembly are disposedaround the main shaft; a first measuring module, a first power supply module and a first communication module are fixedly arranged relative to the radar rotor, and a second measuring module, a secondpower supply module and a second communication module are fixedly arranged relative to the radar stator. The laser radar can shorten the traces of each module, facilitate installation and maintenance, and improve the mechanical reliability of the laser radar.

The application discloses a laser radar. The laser radar in the application comprises a main shaft and a communication module; the communication module comprises at least one light-emitting element and at least one light receiving element; the light-emitting element and the light-receiving element can move relatively, and the light receiving element is located at a light path of at least one of beam emitted by the light-emitting element; and the light-emitting element takes the main shaft as the center and is arranged surrounding the main shaft, thereby constructing an annular light-emitting element. The scheme disclosed by the application can realize the stable transmission f the light signal with low cost.

The invention relates to the technical field of lithium ion batteries, and provides a novel lithium ferric manganese phosphate positive electrode material synthesis method, which comprises: S1, placing manganese dioxide, phosphoric acid and water in a container, stirring, adding aniline, and continuously stirring to obtain polyaniline; s2, weighing an iron source, a lithium source, a carbon source and an organic auxiliary agent, adding into polyaniline, and grinding and stirring; s3, drying and calcining in an air atmosphere to obtain a precursor; s4, adding the carbon source into the precursor again, adding the grinding medium, and grinding to obtain grinding slurry; s5, performing vacuum drying on the grinding slurry to obtain reaction powder; and S6, sintering the reaction powder in a protective atmosphere, cooling to room temperature, crushing, and sieving to obtain the polyaniline/carbon coated iron manganese phosphate lithium ion battery positive electrode material. Through the technical scheme, the problems of low discharge capacity ratio and poor cycling stability in the prior art are solved.

The invention belongs to the field of molecular sieve synthesis, and particularly relates to a preparation method of an SSZ-13 molecular sieve composite material. The preparation method of the SSZ-13 molecular sieve composite material comprises the following steps: synthesizing an SSZ-13 molecular sieve seed crystal; pretreating halloysite; and synthesizing the SSZ-13 molecular sieve composite material. According to the method, the pretreated halloysite is added into the SSZ-13 growth solution for crystallization reaction, so that the yield is increased, and the production cost is greatly reduced; the SSZ-13 molecular sieve composite material obtained by the invention has the property of a hierarchical porous structure, the porosity of a molecular sieve and a catalyst can be improved, and the yield and the catalytic performance are improved.