12 results about "Solar fuel" patented technology

The application provides a multifunctional continuous flow heterogeneous or homogeneous catalytic series reaction device, which comprises a raw material gas supply pipeline, a first gas purification device, a first constant-temperature bubbling gas redispersion device, a second constant-temperature bubbling gas redispersion device, a light-concentrating photothermal reactor, a second gas purification device, a reaction gas velocity cooling device, a gas-liquid separation device and a gas collection device which are sequentially connected in pipeline along the fluid flow direction, and a fluid directional control system. Through the composite heat-resistant cavity structure and the light-heat-flow collaborative design, the device realizes the tolerance to extreme heat environment and the elimination of local hot spots, and the service life is improved by more than 3 times; through the three-stage purification process and the multi-parameter independent control system (temperature / pressure / flow rate / light intensity), the stability of the oxygen-sensitive reaction is ensured, and the reaction selectivity is more than 95%. The device solves the engineering scale-up problem in the light-concentrating catalysis field, the mass transfer efficiency is improved by 5-8 times compared with the batch system, and provides an expandable technical platform for the continuous production of solar fuels.

The invention discloses a preparation method of a full-organic ionic liquid confinement nano catalytic material and application of the full-organic ionic liquid confinement nano catalytic material in photocatalytic CO2 methanation, and belongs to the technical field of photocatalytic materials. The invention aims to solve the problems that the existing photocatalytic material is small in specific surface area and insufficient in active sites due to difficulty in regulation and control of microstructure and pore structure, environmental and biological toxicity is caused by dependence on noble metal / transition metal, and preparation of CH4 by photocatalytic CO2 reduction is restricted. The method comprises the following steps: 1, preparing 5, 5 '-(benzo [c] [1, 2, 5] thiadiazole-4, 7-diyl) bipyridine aldehyde; 2, preparing a pyridine tricarboxylate ionic liquid; 3, PTZpy is prepared; 4, preparing PTZpy (+); and 5, preparing the IL (at) PTZpy (+) nano catalytic material. The catalyst is applied to preparation of methane by photocatalytic reduction of carbon dioxide under visible light irradiation and a pure water system. The method has a good application prospect in the fields of solar fuel preparation and carbon resource conversion.

The invention discloses a method for optimizing the performance of a bismuth vanadate photo-anode by regulating and controlling the temperature of an electrolyte and application of the method, and belongs to the technical field of photoelectrochemical energy conversion. The method comprises the following steps: placing a bismuth vanadate photo-anode in an alkaline electrolyte, and controlling the temperature of the alkaline electrolyte to be 52-54 DEG C when a photoelectrocatalysis water decomposition reaction is carried out. According to the invention, the electrolyte is accurately controlled within the temperature range to carry out the photoelectrocatalytic water decomposition reaction, so that the photocurrent density, the photoelectric conversion efficiency (ABPE) and the charge transfer efficiency can be remarkably improved. According to the invention, the nonlinear influence rule of the electrolyte temperature on the charge transfer behavior of the BiVO4 / electrolyte interface is systematically disclosed for the first time, and the action mechanism is similar to that in a periodic structure, band gap optimization and energy transfer efficiency maximization are realized through parameter tuning. The method does not need to carry out complex modification on an electrode material, is simple to operate, low in cost and good in repeatability, and provides a new optimization strategy and application guidance for design and operation of a high-efficiency solar fuel conversion device.

A photocatalyst that includes Ag3VO4 nanowires for photocatalytic reduction of carbon dioxide to solid fuels and a method for the fabrication of the photocatalyst. The Ag3VO4 nanowires have a hierarchical structure that includes primary nanorods having a mean diameter of 2.5 to 50 nm arranged into nanowire bundles having a mean diameter of 100 to 500 nm. The photocatalyst is used a method of photocatalytically reducing carbon dioxide to methane, for example, using solar spectrum irradiation.

The application discloses a photo-fluidic reactor for solar fuel synthesis, and relates to the technical field of photo-fluidic reactors, which comprises a reactor body, an inner heat preservation structure, an outer heat preservation structure, a gas inlet structure and a gas outlet structure, the inner heat preservation structure is arranged on the inner side of the reactor body and detachably connected with the reactor body, the outer heat preservation structure is arranged on the outer side of the reactor body, one end of the reactor body is provided with a window, the inner side of the reactor body forms a reaction cavity, the gas inlet structure and the gas outlet structure are both communicated with the reaction cavity, the gas inlet structure is provided with a gas inlet channel, and the gas outlet structure is provided with a gas outlet channel. The photo-fluidic reactor for solar fuel synthesis can change the volume of the reactor that can be reacted, and is suitable for different reaction requirements.

This invention discloses a parallel-interface engineered viologen-based defective carbon nitride composite material, its preparation method, and its applications, belonging to the field of energy catalysis and photochemical materials technology. The material comprises: a defective graphitic carbon nitride support; single-atom platinum catalytic sites supported on the support; and a selenium-containing viologen compound anchored by covalent bonds in a configuration parallel to the support surface. Through a bilateral covalent bonding strategy, viologen molecules are stably anchored in a parallel configuration to the single-atom platinum-modified defective carbon nitride surface, constructing a highly efficient and stable "electron bridge" structure, significantly enhancing interfacial bonding and photogenerated electron transport efficiency. This composite material exhibits excellent photocatalytic hydrogen evolution activity and efficient coupling ability with benzylamine oxidation under visible light, and its activity retention rate reaches over 92% after 144 hours of cycling. It provides a new paradigm for solving the problem of poor interfacial stability in photocatalysts and has significant application prospects in the field of solar fuel synthesis.

The application provides a method and device for preparing CO by using solar thermal chemical cycle, and relates to the technical field of solar fuel production. The method comprises the following steps: S1, uniformly mixing Mn2O3 and Na2CO3 pure substances according to a stoichiometric ratio to form a solid-phase mixture of Mn2O3 and Na2CO3; S2, concentrating solar energy into high-temperature heat energy in a first preset temperature range, heating the solid-phase mixture to 800-900 DEG C by using the high-temperature heat energy, and making Mn2O3 and Na2CO3 generate a high-temperature endothermic reaction under normal pressure to generate a solid-phase product NaMnO2 and a gas-phase mixture product CO2, CO and O2; S3, cooling the gas-phase mixture product CO2, CO and O2 to 40 DEG C, separating the gas-phase mixture by pressure swing adsorption to obtain CO2, CO and O2 pure substances respectively; and S4, mixing the CO2 obtained in the step S3 with CO2 from outside, preheating the mixture, fully exchanging heat with the solid-phase product NaMnO2, and making the solid-phase product NaMnO2 generate a low-temperature exothermic reaction under 300-500 DEG C and normal pressure to re-generate Mn2O3 and Na2CO3, and returning to the step S1.

The invention discloses a catalyst for preparing high-purity methane through high-selectivity carbon dioxide reduction and a preparation method of the catalyst, and belongs to the technical field of photocatalysis. In order to solve the industrial common problems of low efficiency, poor selectivity and the like of a traditional cadmium sulfide (CdS) photocatalyst in the CO2 reduction process, the invention innovatively provides a defect anchoring strategy: CdS rich in sulfur vacancies is taken as a carrier, the vacancies are taken as anchoring sites, Ru atoms are anchored to positions adjacent to the sulfur vacancies, and a stable Ru-S4 coordination structure is formed. The structure optimizes the adsorption energy of a peer-to-peer key intermediate and promotes deep reduction of CO2. The catalyst prepared by the preparation method disclosed by the invention not only completely inhibits hydrogen evolution reaction (HER) in photocatalytic conversion reaction of CO2 and H2O, but also greatly inhibits generation of a shallow reduction product CO, and the selectivity of a target product CH4 is greatly improved to 99% from about 10% of a traditional CdS system. According to the invention, high-selectivity CO2 methanation is realized, and a brand new technical path is provided for preparation of high-purity solar fuel.

The present disclosure provides a guitar case system comprising a clear vinyl guitar case, a plurality of solar fuel cells integrated into the exterior of the guitar case, a charging station connected to the solar fuel cells, and a plurality of storage compartments integrated into the guitar case. The charging station is configured to charge electronic devices stored in the compartments. The system enables musicians to efficiently organize and power their equipment while traveling, reducing reliance on external power sources and improving overall performance capabilities.

The invention relates to an intelligent mine field system suitable for lunar mining. The intelligent mine field system comprises an intelligent exploration subsystem, an intelligent construction subsystem, an intelligent mining subsystem, an intelligent utilization subsystem, an intelligent operation and maintenance subsystem and an intelligent communication and navigation subsystem. Through cooperation of the intelligent equipment layer and the intelligent facility layer, equipment such as an exploration vehicle, a mining vehicle, a construction vehicle and a mine car is dispatched in a unified mode, and facilities such as a solar power station, a mineral separation plant and a resource utilization plant are operated and maintained. The operation process of the system comprises the following steps: firstly exploring the distribution condition of lunar resources, then utilizing lunar soil to form building materials and build infrastructures, then exploiting surface, underground and water ice resources, transporting the resources to a mineral separation plant to form concentrates, and finally converting the lunar resources into raw materials such as metal, oxygen and hydrogen and energy such as solar energy, fuel cells and nuclear energy. The system has the whole-chain unmanned, autonomous and intelligent operation capability of exploration-building-mining-use of lunar resources, and a feasible technical scheme is provided for large-scale development and utilization of the lunar resources.

The application discloses a solar methane chemical looping dry reforming system and method based on TiO2 / TiC carbon deposition utilization type oxygen carrier, the system comprises a solar heat collecting device, a reduction reactor, an oxidation reactor, a CO / CO2 separator and an oxygen carrier circulation loop, the solar heat collecting device is respectively connected with the reduction reactor, the oxidation reactor, a material preheating channel of the reduction reactor and a material preheating channel of the oxidation reactor in heat connection; a first heat exchanger is connected between an output end of the reduction reactor and a methane input pipeline, a second heat exchanger is connected between an output end of the oxidation reactor and a CO2 input pipeline; the oxygen carrier circulation loop is connected with a solid phase output end of the reduction reactor and a solid phase input end of the oxidation reactor, and a solid phase output end of the oxidation reactor and a solid phase input end of the reduction reactor. The application effectively solves the carbon deposition problem in long-period circulation while realizing higher solar fuel efficiency.

A nickel-iron catalytic material, a preparation method thereof, and a use thereof in the hydrogen production through water electrolysis and the preparation of a liquid solar fuel (LSF) are provided. The nickel-iron catalytic material is prepared by using a soluble iron salt as a raw material and growing on a modified nickel substrate under mild conditions, and the nickel-iron catalytic material can be used in the industrial alkaline water electrolysis under harsh conditions. The nickel-iron catalytic material includes a nickel metal substrate and a catalytically-active layer with iron and nickel. When used to promote a water splitting reaction, the nickel-iron catalytic material can reduce the energy consumption per m3 of hydrogen production through industrial alkaline water electrolysis from 4.4 kWh to 4.01 kWh, thereby increasing the conversion of solar energy to methanol by 9.7%.