80results about How to "Increase contact space" patented technology

The invention discloses a method for preparing a Co0.85Se super-capacitor material through a chemical vapor deposition method, wherein the Co0.85Se super-capacitor material is a nano film-shaped structure covering a nickel mesh. The specific growth process comprises the following steps: 1), grinding and mixing selenium powder and cobalt powder, putting the mixture of selenium powder and cobalt powder into a quartz boat, and putting the quartz boat into a chemical vapor deposition reacting furnace quartz tube; 2), enabling a foamed nickel mesh to be placed at a position, close to the mouth of the quartz tube, of a downstream side of an air flow; 3), letting in argon gas, exhausting the air in the furnace, stopping the supply of the gas, carrying out heating for some time, and then letting a certain amount of argon gas in the quartz tube for heat preservation, and finally cooling the furnace to the room temperature naturally; 4), taking out foamed nickel, repeatedly washing the foamed nickel through deionized water and ethyl alcohol, drying the foamed nickel, and obtaining the material. The method is simple in operation and does not need complex equipment, and the Co0.85Se uniformly covers the nickel mesh. The material can be prepared in a large area. A composite Co0.85Se nano material electrode is tested in a three-electrode system, presents a high specific capacity of 4462F/g under the current density of 1A/g, and still can maintain 80% or more of the specific capacitance value after 5000-time circulating charging and discharging under a high current of 20A/g, wherein the charge transfer impedance is 0.82 ohm/cm<2>.

The invention discloses a preparation method of MnO2/graphite fiber super capacitor electrode materials. The method comprises steps of carrying out reduction-oxidation on graphite to obtain graphite fibers; and wrapping and growing MnO2 nano lines on the surfaces of the graphite fibers. The micro-structure of the prepared MnO2/graphite fiber super capacitor electrode material is MnO2 nano-line wrapped graphite fibers. The MnO2 nano lines are interlaced with each other to form many communicating space hole structures. Thus, a quite big specific surface area is achieved; the specific surface area and the space utilization rate of the electrode are effectively improved; and the specific capacitance, the rate performance and the electrochemical stability of the electrode materials are improved. The specific capacitance value of the prepared electrode material can reach 64.4-105.3F g<-1> in a three-electrode system test. The preparation method is advantaged by simplicity and low cost.

The invention discloses a conductive coated composite solid electrolyte, a preparation method thereof and an application of the conductive coated composite solid electrolyte in a solid-state secondarybattery. The composite solid electrolyte is composed of inorganic solid electrolyte particles and a polymer electrolyte coating layer formed on the surfaces of the inorganic solid electrolyte particles. The preparation method of the composite solid electrolyte comprises the following steps of uniformly mixing the polymer/polymer monomer, the cationic compound salt and the inorganic solid electrolyte powder according to a certain ratio to obtain a precursor solution, and adding an initiator to initiate in-situ polymerization of the polymer monomer on the surfaces of solid electrolyte particles, or adding a precipitant to separate out the polymer on the surfaces of the solid electrolyte particles, thereby preparing the composite solid electrolyte. Furthermore, the prepared composite solid electrolyte and a solvent are mixed according to a certain proportion to obtain uniform and stable slurry, and a solid electrolyte film is prepared on the surface of a base material or an electrode byusing a tape-casting coating process and is used for producing a solid-state secondary battery.

The invention discloses a hydrophilic polythiophene grafted oxidized graphene supercapacitor electrode material and a preparation method thereof. According to the method, long-chain alkoxy alcohol amino substituted polythiophene and oxidized graphene are used as raw materials and grafted through esterification to prepare hydrophilic polythiophene grafted oxidized graphene nanosheets. The compositeelectrode material is controllable morphologically, polythiophene is uniformly grafted on the oxidized graphene, and large specific surface area, excellent electrical conductivity, stable chemical properties and the like are realized. By synergistic effects of polythiophene and oxidized graphene, contraction and expansion of active substances in charging and discharging processes can be effectively retarded, the specific capacitance is increased, current impedance is reduced, and cycle stability is improved. The material can be used as an ideal new-energy device electrode material for supercapacitors, high-performance electro-catalytic materials, lithium ion batteries and the like.

The invention discloses a manufacturing method of a NiO@graphene fibre supercapacitor electrode material. The manufacturing method comprises the following steps of carrying out reduction and oxidation on graphene, and acquiring a graphene fiber; and on a surface of the graphene fiber, through a hydrothermal method, cladding and growing NiO and the like. A microstructure of the manufactured NiO@graphene fibre supercapacitor electrode material is a NiO cladding graphene fiber which possesses a large specific surface area. A specific surface area of an electrode and a space utilization rate are effectively increased, and a specific capacitance, a rate capability and electrochemical stability of the electrode material are increased too. In a super-capacitor three-electrode system test, the material manufactured in the invention shows a 134Fg<-1> high specific capacity under a 2Ag<-1> current density and possesses good electrochemical performance. The manufacturing method possesses advantages that the method is simple; and cost is low and so on.

The invention discloses a spraying type waste gas purification device, and relates to the technical field of waste gas purification, the spraying type waste gas purification device comprises a tower body, wherein a gas inlet and a gas outlet are formed in the tower body, a first tube plate and a second tube plate are arranged in the tower body and divide the tower body into a first cavity, a second cavity and a third cavity, all tube openings of the first tube plate are communicated with a part of tube openings of the second tube plate, the gas inlet is communicated with the second cavity, anda spraying device is arranged in the first cavity. The tower body is divided into three cavities through the first tube plate and the second tube plate; meanwhile, all tube openings of the first tubeplate are communicated with a part of tube openings of the second tube plate; waste gas is uniformly distributed by the second tube plate and then enters the third cavity; and finally, the waste gasenters the first cavity from the tube opening, communicated with the first tube plate, of the second tube plate, and the waste gas flows through the first cavity from the third cavity after being uniformly distributed, so that the waste gas can be reversely and fully contacted with a solution sprayed by a spraying device, and the purification rate of the waste gas is further improved.

The invention discloses a building engineering material witness sampling device and a sampling method thereof, relates to the technical field of building engineering material sampling, and aims to solve the problem that an existing witness sampling device cannot effectively and quickly sample materials. The device is characterized in that a fixing cylinder is arranged on one side of the upper end of a base, a driving box is arranged on the other side of the upper end of the base, a worm rod is installed in the fixing cylinder and is in sliding connection with the fixing cylinder, a driving gear is arranged at the lower end of one side of the worm rod, the driving gear is located in the driving box, the driving gear is matched with the external threads of the worm rod, an inner cylinder is arranged in the worm rod and slidably connected with the worm rod, a sampling cylinder is mounted in the inner cylinder, a sawtooth cylinder is integrally arranged at the bottom of the sampling cylinder, an adjusting ring and a fixing ring are arranged at the lower end in the sampling cylinder, metal blades are arranged between the adjusting ring and the fixing ring, the number of the metal blades is five, and the metal blades are distributed in a staggered and stacked mode.

The invention relates to a smoke gas desulfurization dust removal device by turbulent ball type turbocharging acceleration, which belongs to the technical field of gas purification and comprises a casing, a pipeline and a smoke shielding cover, wherein the pipeline is fixedly arranged in the center of the pipeline, and the lower end of the casing is connected with the smoke shielding cover. The dust removal device is characterized by also comprising upper and lower porous end plates, a turbulent ball and a plurality of blades, wherein the upper and lower porous end plates are respectively arranged at the upper end and the middle part of the casing, the turbulent ball is filled in the space between the upper and lower porous end plates of the casing, the blades are arranged between a porous separation plate and the pipeline, the upper end of each blade is connected with the inner wall of the casing, and the lower end of each blade is connected with the outer wall. The turbulent ball type turbocharging acceleration smoke gas desulfurization dust removal device has the advantages that the full gas and liquid contact can be realized under the conditions of the shortest time, the smallest space and the lowest liquid liquid-gas ratio, the high-speed mass transfer is carried out, and the high dust removal and desulfurization efficiency can be improved at the minimum energy consumption.

The invention provides a light-emitting diode (LED) bullet candle bulb. The LED bullet candle bulb mainly comprises a connection seat, a lamp holder and a luminous body. The lamp holder is arranged on the upper portion of the connection seat, the luminous body is arranged on the upper portion of the lamp holder, through holes are formed in the outer side face of the lamp holder and evenly arranged in the outer side face of the lamp holder. The LED bullet candle bulb is characterized in that a stack effect is achieved by utilizing through holes around a base seat, and a heat dissipation effect is enhanced. In order to prolong service life of the LED bullet candle bulb further, the luminous body is a blue light luminous piece, and a fluorescent powder outer cover is arranged on the luminous body. Light source color is adjusted through large-area of externally-arranged fluorescent powder, meanwhile, contact space of the luminous body and air is increased, and the heat dissipation effect is enhanced.

The invention discloses a ripple filling material with multiple layers of gas/liquid runners. The filling material is novel structured packing used in a packed tower. The filling material is composed of a plurality of filling blocks. Each filling block is prepared by laminating multiple ripple plate units. Each ripple plate unit is prepared by pressing a thin steel plate, a plate-flower net, a silk screen, and a non-metal belt together, and comprises two external ripple plates and one internal ripple plate. The internal ripple plate is arranged in the middle part of the ripple plate unit, and two external ripple plates are arranged on two sides of the middle part of the ripple plate unit. The gas/liquid runners of the external ripple plates and internal ripple plate are parallel to each other. The ripple filling material has the advantages of large flux, small resistance, high efficiency, and strong obstruction resistant performance, and can be used in the fields such as chemical engineering, oil refining, petrochemical industry, ethylene industry, pharmacy, natural gas industry, and the like.