20results about "Metal hydrides" patented technology

To provide a method and an apparatus that enable rehydrogenation after hydrogen release of borohydride composed of (HB)n(n≥4) as a hydrogen storage material so that the borohydride can be used repeatedly and the rehydrogenation can be performed without using a heating process.SOLUTION: A method for using a hydrogen storage material includes a rehydrogenation step of placing a hydrogen desorbed boron given by hydrogen being desorbed from borohydride composed of (HB)n(n≥4) under pressurized hydrogen of 4 MPa or more, whereby hydrogen is recombined with the hydrogen desorbed boron to form the borohydride. The rehydrogenation can be carried out without using a heating process. An exemplary embodiment of the hydrogen storage material is a hydrogen storage material supported on a bendable resin carrier.SELECTED DRAWING: Figure 2

The utility model discloses a hydrolysis device applied to sodium methoxide wastewater, which comprises a support, a reaction kettle arranged on the support, a feed port, a water inlet, an exhaust port and an oil discharge port sequentially arranged at the top of the reaction kettle, a discharge port arranged at the bottom of the reaction kettle, a guide rod vertically arranged in the reaction kettle, a sliding sleeve sleeved on the guide rod, and a lifting pipe arranged on the side surface of the sliding sleeve. The upper end of the lifting pipe is connected with one end of a telescopic hose, the other end of the telescopic hose is connected with an oil outlet formed in the top of the reaction kettle, a supporting plate is arranged on the side wall of the reaction kettle, a first motor is arranged on the supporting plate, and an output shaft of the first motor penetrates through the side wall of the reaction kettle and extends into the reaction kettle. One end of the pulling rope is connected with the winding drum, and the other end of the pulling rope is connected with the sliding sleeve. The device disclosed by the utility model is high in hydrolysis efficiency, and the hydrolyzed oil phase and water can be quickly separated, so that the efficient recycling of the sodium methoxide wastewater is realized.

Provided are methods of producing cobalt-based nanoparticles (CoxBy NPs) of a pre-selected diameter. The methods include reducing Co2+ ions with a sodium borohydride (NaBH4) solution having a selected ratio of tetrahydroxyborate (B(OH)4−) to tetrahydroborate (BH4−) based on the pre-selected diameter, where the ratio of B(OH)4− to BH4− is positively correlated with the pre-selected diameter. Also provided are methods of using the CoxBy NPs to produce hollow metal nanospheres (HMNs). Methods of producing CoxBy NP core / metal shell structures are also provided, such methods including combining in an anaerobic galvanic exchange reaction a deaerated solution including CoxBy NP scaffolds and a deaerated solution including a metal. Also provided are methods of producing HMNs from the CoxBy NP core / metal shell structures. Compositions and kits that find use in practicing the methods of the present disclosure and using HMNs produced in accordance with the methods of the present disclosure, are also provided.

The invention relates to the field of metal hydrogenation equipment, and discloses a heat energy management system which comprises a reaction heat management device arranged on a reactor, the reaction heat management device comprises upflow and a reaction heat exchanger, the reactor comprises an air inlet pipe and an air outlet pipe, and the upflow is continuously introduced from the air inlet pipe below the reactor; the gas is discharged from a gas outlet pipe above the reactor; and the reaction heat exchanger is fixed on the outer wall of the reactor and can perform heat management on the reactor. A reaction heat management device is formed by ascending airflow and a reaction heat exchanger, hydrogenation reaction is carried out in a vertically arranged reaction container, metal powder is suspended by the ascending airflow to carry out hydrogenation reaction, and heat energy released in the reaction process is taken away by heat convection of the ascending airflow and the reaction heat exchanger; according to the method, the metal powder is added, local high temperature is avoided, the hydrogenation reaction process is easier to control, the controllability of the hydrogenation reaction is improved, and possibility is provided for continuous hydrogenation of the metal powder.

The invention relates to the technical field of metal hydrogenation, and discloses a metal hydride preparation method, which comprises: S1, gas introduction: continuously introducing hydrogen gas with a pressure of 1-6 MPa and a temperature of 50-500 DEG C into a vertical reactor to form an upflow from bottom to top; and S2, hydrogenation: continuously feeding metal powder with the particle size of less than 2000 microns through a feeding pipe, carrying out hydrogenation reaction under the lifting of ascending airflow, discharging the product from an air outlet pipe along with the airflow, and starting a reaction heat exchanger to control the temperature and maintain the temperature required by the reaction. According to the method, metal powder is suspended and dispersed through ascending airflow, gas-solid contact is enhanced, and the reaction efficiency is improved; upflow has the functions of reaction and heat dissipation, reaction heat is timely guided out through convection, and caking or melting caused by local overheating is prevented; by combining temperature regulation and control of the reaction heat exchanger, dynamic heat balance is realized, the reaction stability is effectively guaranteed, the purity and granularity uniformity of the product are remarkably improved, and the method is suitable for continuous and high-quality metal hydride preparation.

The application relates to an N, N-dimethylethylamine aluminum alkane deuterated complex, preparation, application and alpha'-AlD3, and belongs to the technical field of energy materials and chemical synthesis. An aluminum alkane deuterated amine complex is prepared by reacting LiAlD4 with N, N-dimethylethylamine. The method has mild conditions and high yield, the obtained complex is stably present in a high-concentration solution, can be used as an efficient deuterium gas storage medium and a low-temperature deposition precursor, and can be used for preparing alpha'-AlD3.

This invention discloses a two-dimensional hydrogen germanene nanosheet, its preparation method, and its applications. The two-dimensional hydrogen germanene nanosheet has an ultrathin layered structure, with covalently modified hydrogen atoms on its surface, a lateral dimension of 100–300 nm, and a thickness of 5–10 nm. When activated by a specific wavelength laser, the two-dimensional hydrogen germanene nanosheet can photoexcite and generate singlet oxygen to destroy bacterial biofilms and kill bacteria. Simultaneously, it consumes local oxygen to create a staged hypoxic microenvironment, thereby inhibiting excessive inflammatory responses. After the light exposure ends, as the local oxygen level naturally recovers, it can further enhance the infection clearance function of immune cells, achieving continuous clearance of residual infection. This invention, through staged dynamic regulation of oxygen partial pressure, synergistically integrates direct bactericidal and immune clearance processes, ensuring antibacterial strength while reducing the risk of tissue damage and infection recurrence. It is suitable for the safe and effective treatment of implant-related biofilm infections.

A method of treating an at least partially unconsumed hydrogen generator cartridge including water and a metal hydride includes treating the at least partially unconsumed hydrogen generator cartridge to form a treated hydrogen generator cartridge. When subjected to testing conditions the treated hydrogen generator cartridge produces no hydrogen gas or produces hydrogen gas at a lower rate than the at least partially unconsumed hydrogen generator cartridge subjected to the testing conditions. The testing conditions include heating at less than or equal to 300 °C, agitation, exposing the metal hydride to a protic solvent, or a combination thereof.

The present invention relates to a tank arrangement (10) comprising a tank (1) for liquid hydrogen, a boil-off management system (2) including a catalyst (3), and a heater arranged on the hydrogen side after a first pressure relief valve (5) and thermally connected to the catalyst (3), wherein the first pressure relief valve (5) is configured to open when a predetermined first pressure is exceeded, the heater being configured as a passive metal hydride heater (4) including a metal hydride, and a second pressure relief valve (6) is arranged between the first pressure relief valve (5) and the catalyst (3), the second pressure relief valve (6) being configured to open when a predetermined second pressure higher than the first pressure is exceeded.

Provided are a preparation method and system for an alane and a use of the alane. The method comprises: preparation of triethylaluminum: using triethylaluminum as a seed and aluminum and hydrogen as raw materials to synthesize triethylaluminum by means of a direct synthesis method, wherein the newly synthesized triethylaluminum comprises triethylaluminum in an amount equal to the seed and triethylaluminum for alane synthesis; and preparation of alane: thermally decomposing the triethylaluminum for alane synthesis to obtain the alane, wherein the newly synthesized triethylaluminum in an amount equal to the seed is used as a new seed for new preparation of triethylaluminum. The present invention only consumes aluminum and hydrogen required for generating the alane during the preparation of alane, and other raw materials can achieve a balance between consumption and output during the production process, achieving recycling, low production costs, high safety performance, and low emissions.

This invention provides a technology that can shorten the hydrogen generation cycle in a configuration for generating hydrogen from hydrogen-generating materials. [Solution] The hydrogen generation device comprises a container for housing a hydrogen generation material that generates hydrogen by receiving light of a specific wavelength and whose hydrogen generation function can be regenerated by the supply of water; a light application unit for applying the light to the hydrogen generation material; a water supply unit for supplying water to the hydrogen generation material; and a control unit configured to control the light application unit and the water supply unit and to execute a hydrogen generation mode in which hydrogen is generated from the hydrogen generation material by the application of the light, and a regeneration mode in which the hydrogen generation function of the hydrogen generation material is regenerated by the supply of water.

A composition for electrolytes for calcium batteries which contains a calcium salt comprising a calcium atom, boron atoms, and hydrogen atoms and having a cage structure.

The present invention provides a boron hydride-containing composition, a hydrogen production system, and a fuel cell system, which use a boron hydride-containing sheet to achieve further improvement in hydrogen supply source performance. The boron hydride-containing composition according to the present invention contains a boron hydride-containing sheet and an electron donor, the boron hydride-containing sheet having a two-dimensional network including (BH) n (n ≥ 4, and n is an integer). At least a part of the electron donor is carried on the boron hydride-containing sheet, and by external stimulation, the electron of the electron donor is supplied to the boron hydride-containing sheet, and hydrogen is produced from the boron hydride-containing sheet into which the electron is injected.

The invention relates to a method for producing isotope-enriched germanium-hydrogen compounds, comprising the following method steps: a) providing a gas of a highly chemically pure germanium tetrafluoride; and b) providing a reducing solution in an inert reaction container, the reducing solution containing an organic solvent and an alkali-aluminum hydride as the reducing agent; c) introducing the gas in the reducing solution; and d) condensing the gaseous germanium-hydrogen compounds produced by the reduction.

The application provides a kind of solid-liquid fuel composite hydrogen production and high-low temperature fuel cell coupling intelligent power system.It includes: aluminum trihydride fuel tank, methanol steam reforming hydrogen production reactor, high temperature proton exchange membrane fuel cell stack and low temperature proton exchange membrane fuel cell stack;The outlet of the aluminum trihydride fuel tank is connected with the inlet of high-pressure hydrogen storage bottle through pipeline;The outlet of the high-pressure hydrogen storage bottle is connected with the anode inlet of the low temperature proton exchange membrane fuel cell stack through pressure reducing valve;The dual hydrogen source synergistic coupling mechanism of the application effectively solves the inherent limitations of single hydrogen source in fuel cell application through complementary reaction characteristics and energy cascade utilization, breaks the traditional single hydrogen source, single type fuel cell system architecture, creatively deeply integrates two hydrogen production methods and two stack technologies, and realizes the comprehensive breakthrough of the system in efficiency, dynamic response, fuel adaptability and reliability.

The present disclosure provides an alane preparation method, a preparation system and an application thereof that includes: preparing triethylaluminum: taking triethylaluminum as seeds and aluminum and hydrogen as raw materials, synthesizing triethylaluminum via a direct synthesis method; the triethylaluminum that is newly synthesized contains triethylaluminum of an equal amount as the seeds and triethylaluminum configured to perform alane synthesis; preparing alane: performing thermal decomposition on triethylaluminum that is configured to perform alane synthesis, to obtain alane, wherein the newly synthesized triethylaluminum with an amount equivalent to that of the seeds are used as new seeds for the preparation of new triethylaluminum. The present disclosure only consumes aluminum and hydrogen that are necessary for preparing alane during the preparation process, other raw materials can achieve a balance between consumption and production during the production process.

The present invention provides: a borohydride-containing composition which enables further improvement in the performance of a hydrogen supply source that uses a borohydride-containing sheet; a hydrogen generation system; and a fuel cell system. A borohydride-containing composition according to the present invention comprises: a borohydride-containing sheet which has a two-dimensional network that is composed of (BH)n (wherein n ≥ 4, provided that n is an integer); and an electron donor. At least some of the electron donor is supported by the borohydride-containing sheet; electrons of the electron donor are supplied to the borohydride-containing sheet by external stimuli; and hydrogen is generated from the borohydride-containing sheet into which the electrons have been injected.

Disclosed are a carbon dioxide-derived porous carbon material having improved performance based on polymer treatment, and an electrochemical process for the efficient production of hydrogen peroxide using the material. The carbon material is concerned because it can address the catalyst cost problem of electrochemical hydrogen peroxide production. A simple carbon material exhibits excellent activity, but has the disadvantage that selectivity decreases as overpotential increases, and high performance is difficult to maintain in different electrolytes. By heat treatment with a polymer to further introduce oxygen into the carbon structure, these disadvantages of carbon materials are overcome and the efficiency of monatomic metals as active sites is enhanced. More particularly, disclosed are methods of converting a carbon dioxide-containing off-gas or production process waste gas to porous carbon by reaction with a boron-containing reducing agent, and methods of synthesizing a material by heat treating the gas with a polymer comprising oxygen functional groups to further introduce oxygen functional groups. Further, a molecular catalyst comprising a monatomic metal is dispersed and bonded to the heat-treated porous carbon material, thereby creating a synergistic effect between the metal and oxygen, maximizing respective advantages. Based on this, the carbon dioxide derived carbon material exhibits high hydrogen peroxide production performance under various electrolyte conditions due to activation of a two-electron oxygen reduction reaction.

A method of treating an at least partially unconsumed hydrogen generator cartridge including water and a metal hydride includes treating the at least partially unconsumed hydrogen generator cartridge to form a treated hydrogen generator cartridge. When subjected to testing conditions the treated hydrogen generator cartridge produces no hydrogen gas or produces hydrogen gas at a lower rate than the at least partially unconsumed hydrogen generator cartridge subjected to the testing conditions. The testing conditions include heating at less than or equal to 300 °C, agitation, exposing the metal hydride to a protic solvent, or a combination thereof.