The invention provides a hydrogen production catalyst as well as a preparation method thereof and a catalytic hydrogen production method using the same. The catalyst comprises a carrier and an active component coated on the carrier. The preparation method of the catalyst comprises the following steps of: (1) coating the active component on the carrier; (2) sintering the carrier at a high temperature to form an alloy; and (3) carrying out chemical surface activation treatment. The prepared catalyst can be used for hydrolyzing hydroboron to produce hydrogen. The preparation method provided by the invention is simple in molding and the prepared catalyst has the advantages of fixed shape, good responsiveness, high specific surface area and high strength; when being used for catalyzing, the catalyst is easy to control and can be continuously used for a long period of time; and the catalysis rate of the catalyst in a hydrogen production process is high.

Hydrogen production catalyst as well as preparation method thereof and catalytic hydrogen production method using same

The invention discloses a preparation method of a phosphor-doped bimetallic nanocatalyst using graphene as a carrier and application to hydrogen production through decomposition of hydrazine hydrate or formic acid. During the application to the hydrogen production through the decomposition of the hydrazine hydrate or the formic acid, the phosphor-doped bimetallic nanocatalyst using the graphene as the carrier, the hydrazine hydrate (or formic acid) and water are used; in the phosphor-doped bimetallic nanocatalyst using the graphene as the carrier, bimetallic elements are Pt and Ni, or Pd and Ag. The phosphor-doped bimetallic nanocatalyst uses the graphene as the carrier and uses sodium hypophosphite as a reducing agent; a coreduction method is adopted, and a preparation process is simple; the prepared phosphor-doped nickel-platinum or palladium-silver bimetallic catalyst is in a nanometer scale, has the particle size being less than 10 nanometers, is loaded on the surface of the graphene, has highly-efficient catalytic hydrogen-producing performance on the hydrazine hydrate or the formic acid, and is convenient to recycle and reusable.

Phosphor-doped bimetallic nanocatalyst using graphene as carrier and application to hydrogen production through decomposition of hydrazine hydrate or formic acid

The present invention discloses a liquid-state hydrogen source material hydrogen supply reaction system based on a hydrogen fuel cell. The system comprises: a storage tank for storing a liquid-state hydrogen source material and a liquid-state hydrogen storage carrier, a reaction kettle for dehydrogenation of the liquid-state hydrogen source material, a buffer tank for storing hydrogen, a heating device for heating the reaction kettle, and a hydrogen fuel cell, wherein the liquid-state hydrogen source material is pumped into the reaction kettle through a pump, the liquid-state hydrogen storage carrier after the dehydrogenation reaction is conveyed to the storage tank, the hydrogen generated through the liquid-state hydrogen source material dehydrogenation reaction is conveyed to the buffer tank through the reaction kettle, and the hydrogen in the buffer tank is conveyed into the hydrogen fuel cell. According to the present invention, the normal temperature and normal pressure liquid-state hydrogen source material dehydrogenation reaction system based on the fuel cell is provided, and the integrated technology for combining the hydrogen released through the dehydrogenation reaction of the normal temperature and normal pressure liquid-state hydrogen source material under the mild condition and the hydrogen fuel cell is firstly provided.

Liquid-state hydrogen source material hydrogen supply reaction system based on hydrogen fuel cell

The invention discloses a solvothermal preparation method for a solid solution catalyst NixM1-x-yMgyO (with M being Ce, Co, Sn, Mn) used for CH4-CO2 dry gas reforming. Benzyl alcohol is adopted as a structure directing agent. Under a methanol thermal condition, a metastable precursor NixM1-x-yMgy(OH) (OCH3) with certain crystal structure and flaky shape is firstly generated, and then the metastable precursor is subjected to thermal decomposition so as to obtain the solid solution catalyst NixM1-x-yMgyO (with M being Ce, Co, Sn, Mn).

Solvothermal method for solid solution catalyst NixM1-x-yMgyO (with M being Ce, Co, Sn, Mn) used for CH4-CO2 dry gas reforming

The invention discloses a heat energy utilization system in a hydrogen energy source conversion device. The system comprises a reaction kettle, a buffer tank, a hydrogen energy conversion device and heat exchange equipment. The reaction kettle is connected with a buffer tank, and the buffer tank is connected with the hydrogen energy conversion device; the heat exchange equipment is arranged on the outer portion of the reaction kettle and the outer portion of the hydrogen energy conversion device; in the heat exchange equipment, a liquid-state hydrogen source serves as a heat conduction medium to transmit heat generated by the hydrogen energy conversion device to the reaction kettle; and a liquid-state hydrogen source material obtained after heat transmission enters the reaction kettle to have a dehydrogenation chemical reaction. Heat of the hydrogen energy conversion device can be fully utilized, the use amount of cooling water is reduced, equipment space can be greatly reduced, other heat conduction media are not required to be additionally used, and possibly-generated pollutions are reduced.

Heat utilization system in hydrogen energy source conversion device

The invention relates to hydrogen production and hydrogen storage technologies and materials, in particular to a catalyst for catalytic hydrolysis of borane for the hydrogen production and a preparation method thereof, thereby solving the problems that the direct application of powder catalyst in a catalytic hydrolysis solid-liquid reaction system can cause the loss of the catalyst, the catalytic hydrolysis reaction is difficult to control and the hydrolysis by-products are difficult to be recovered, etc. The catalyst is composed of an active component and a carrier; the active component is a binary, ternary or multinary alloy or a single precious metal or the combination thereof which is composed of one or more transition metals, rare earth metals or precious metals and metalloids; the active component is deposited on the carrier through the improved chemical plating technology, the surface thereof is rough and porous, and the structure of the prepared catalyst is the amorphous or the nanocrystalline structure. The preparation method has simple preparation process, high preparation efficiency and convenient large-scale preparation; the sources of the used raw materials are rich; the catalytic activity of the prepared supported catalyst is high, the real-time control of the catalytic hydrolysis reaction of the borane can be realized, the catalytic performance is stable, and the catalyst can be repeatedly used for a plurality of times.

Catalyst for hydrogen production by catalyzing and hydrolyzing borohydride and preparation method thereof

The invention relates to a hydrogen storage and production technology, in particular to a device and a method for chemical hydride catalytic-hydrolysis hydrogen production suitable for an onboard hydrogen source. The hydrogen production device mainly comprises a catalytic reaction chamber provided with a heat exchanger, a gas-liquid separator, a fuel pump and a controlling unit, and the hydrogen production method is used for controlling the contact and the separation between liquid fuel and catalyst to achieve the purpose of prompt hydrogen production as required. Since the heat exchanger is additionally arranged at the periphery or inside the catalytic reaction chamber, the heat from hydrolysis reaction is effectively utilized, the initial temperature of the liquid fuel is remarkably improved, the hydrogen-production rate of the device, the fuel conversion ratio and the system energy efficiency are greatly improved; and in addition, due to the design of the controlling unit, the continuous automatic adjustment of the delivery rate of the liquid fuel is realized, the stable hydrogen pressure of the system is ensured, and the hydrogen-storage density of the device is improved when the hydrogen supply demand at the hydrogen use terminal is responded in real time. The provided device for prompting hydrogen production can provide the onboard hydrogen source for hydrogen fuel-cell vehicles and various military and civil portable power supplies.

Device and method for chemical hydride catalytic-hydrolysis hydrogen production suitable for onboard hydrogen source

The utility model relates to the technology of hydrogen storage and hydrogen production, in particular to a hydrogen producing device by catalyzing and hydrolyzing chemical hydrides, and the device can be applied to moving hydrogen source. The hydrogen producing device is composed of a catalytic reacting chamber which is provided with a heat exchanger, a gas-liquid separator, a fuel pump and a control unit and the like; a hydrogen producing method comprises: the contact and separation of the fuel liquid and catalyst are controlled for realizing hydrogen production immediately as required. The heat exchanger is additionally arranged at the surrounding or inner part of the catalytic reacting chamber for effectively utilizing hydrolysis reacting heat, thus remarkably improving the initial temperature of the fuel liquid and greatly improving the hydrogen producing rate of the device, the fuel conversion rate and system energy efficiency; besides, the hydrogen producing device also adopts the design of a novel control unit for realizing continuous automatic adjustment of the transporting rate of the fuel liquid and ensuring hydrogen pressure of the system to be stable; the hydrogen storing density of the device is improved when realizing to respond hydrogen supplying requirements at the hydrogen using terminal. The hydrogen producing device for realizing hydrogen production immediately as required can supply hydrogen source for hydrogen fuel battery carts and various military and civil portable powers.

Hydrogen generation by catalytic hydrolysis of chemical hydride suitable for mobile hydrogen source

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Catalyst for hydrogen production by catalyzing and hydrolyzing borohydride and preparation method thereof

Device and method for chemical hydride catalytic-hydrolysis hydrogen production suitable for onboard hydrogen source

Hydrogen generation by catalytic hydrolysis of chemical hydride suitable for mobile hydrogen source