阅读说明：本技术 应用镍铁催化剂与氢氧化物导电聚合物水电分解制氢系统 (Hydrogen production system employing ferronickel catalyst and hydroxide conducting polymer through hydro-electric decomposition ) 是由 李明展 于 2021-09-16 设计创作，主要内容包括：本发明提供一种应用镍铁催化剂与氢氧化物导电聚合物水电分解制氢系统,属于制氢技术领域,包括电解槽,所述电解槽包括顶部开口的槽体、设置于槽体内底部的隔板,所述隔板将槽体内部分隔成正极槽和负极槽,所述正极槽的上侧与负极槽的上侧连通,所述正极槽内设置正电极,所述负极槽内设置负电极；所述正极槽内设置镍铁催化剂,所述负极槽内设置氢氧化物导电聚合物,氢氧化物导电聚合物与镍铁催化剂结合,为快速电化学反应提供高pH值环境。本发明降低生产成本；氢氧化物导电聚合物能够与镍铁催化剂结合,为快速电化学反应提供高pH值的环境,提高制氢速率。(The invention provides a hydrogen production system by applying a nickel-iron catalyst and a hydroxide conducting polymer through hydro-electric decomposition, which belongs to the technical field of hydrogen production and comprises an electrolytic cell, wherein the electrolytic cell comprises a cell body with an opening at the top and a partition plate arranged at the bottom in the cell body, the partition plate divides the interior of the cell body into a positive electrode groove and a negative electrode groove, the upper side of the positive electrode groove is communicated with the upper side of the negative electrode groove, a positive electrode is arranged in the positive electrode groove, and a negative electrode is arranged in the negative electrode groove; the nickel-iron catalyst is arranged in the anode tank, the hydroxide conducting polymer is arranged in the cathode tank, and the hydroxide conducting polymer is combined with the nickel-iron catalyst to provide a high pH value environment for rapid electrochemical reaction. The invention reduces the production cost; the hydroxide conducting polymer can be combined with a nickel-iron catalyst, so that a high pH value environment is provided for a rapid electrochemical reaction, and the hydrogen production rate is improved.)

1. A hydrogen production system by using a nickel-iron catalyst and a hydroxide conducting polymer through hydro-electric decomposition is characterized in that: the electrolytic cell comprises an electrolytic cell body (1) with an opening at the top and a partition plate (3) arranged at the bottom in the electrolytic cell body (1), wherein the inside of the electrolytic cell body (1) is divided into a positive electrode groove (2) and a negative electrode groove (4) by the partition plate (3), the upper side of the positive electrode groove (2) is communicated with the upper side of the negative electrode groove (4), a positive electrode (6) is arranged in the positive electrode groove (2), and a negative electrode (7) is arranged in the negative electrode groove (4);

the nickel-iron catalyst is arranged in the positive electrode groove (2), the hydroxide conducting polymer is arranged in the negative electrode groove (4), and the hydroxide conducting polymer is combined with the nickel-iron catalyst to provide a high pH value environment for rapid electrochemical reaction.

2. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer and nickel-iron catalyst according to claim 1, wherein: the height of baffle (3) is not less than the degree of depth of cell body (1), through-hole (5) have been seted up in the upside of baffle (3) run through, the height that highly is less than cell body (1) top of through-hole (5).

3. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer and nickel-iron catalyst according to claim 1, wherein: the height of the partition plate (3) is less than the depth of the tank body (1).

4. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer with the nickel-iron catalyst according to any one of claims 1 to 3, wherein: the inner side wall of the tank body (1) is provided with an insertion groove, and the partition plate (3) comprises a plate main body (301) and an insertion plate body (302) which is connected with the two ends of the plate main body (301) and is inserted into the insertion groove.

5. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer and nickel-iron catalyst according to claim 1, wherein: the nickel-iron catalyst is prepared by the following steps of 1: 1-10 mol ratio of nickel and iron, adding pretreated foamed nickel into an iron salt solution, performing ultrasonic treatment, and fully dissolving to obtain the nickel-iron catalyst.

6. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer and nickel-iron catalyst according to claim 5, wherein: the pretreatment of the foamed nickel comprises acid washing, water washing and ethanol washing.

7. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer and nickel-iron catalyst according to claim 1, wherein: the iron salt is Fe (NO)₃ )³•9H₂O and/or FeCl₃•6H₂At least one of O.

8. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer and nickel-iron catalyst according to claim 1, wherein: the foamed nickel is sheet-shaped.

9. The system for producing hydrogen by the hydro-electric decomposition of hydroxide conducting polymer and nickel-iron catalyst according to claim 8, wherein: the thickness of the foam nickel is 1.2-1.6mm, and the surface density is 360-380g/m²。

Technical Field

The invention relates to the technical field of hydrogen production, in particular to a hydrogen production system by applying a nickel-iron catalyst and a hydroxide conducting polymer through hydro-electric decomposition.

Background

According to the U.S. department of energy data, the united states currently produces about 1000 million tons of hydrogen per year, most of which are produced by natural gas conversion processes. Researchers show that the adoption of renewable energy sources for power generation to decompose water to produce hydrogen can bring great economic and environmental benefits. The water electrolysis hydrogen production is a convenient method for producing hydrogen. Direct current is introduced into an electrolytic cell filled with electrolyte, and water molecules are subjected to electrochemical reaction on electrodes and are decomposed into hydrogen and oxygen. The chemical reaction formula is as follows:

alkaline conditions

Cathode 4H2O +4e =2H2 ↓ +4OH

Anode 4OH-4e =2H2O + O2 ↓

The total reaction formula is 2H2O =2H2 ↓ + O2 × (ii) bed

② acid conditions

Anode 2H2O-4e = O2 ↓ +4H

Cathode 4H +4e =2H2 ↓

The reaction follows faraday's law with gas production being proportional to current and time of energization.

The existing water electrolysis system adopts a very expensive catalyst, most of the equipment called proton exchange membrane water electrolysis bath is used for decomposing water, the hydrogen production rate of the equipment is high, but the equipment is expensive, and the equipment needs to depend on a noble metal catalyst such as platinum, iridium and the like and a corrosion-resistant metal plate made of titanium for working under an acidic condition, so that the investment is large.

Therefore, it is desirable to provide a system for hydrogen production by the hydro-electrolytic decomposition of conductive polymers using nickel-iron catalysts and hydroxides to solve the above existing problems.

Disclosure of Invention

In view of the above, the invention provides a hydrogen production system by using a nickel-iron catalyst and a hydroxide conducting polymer through hydro-electric decomposition, wherein the nickel and iron elements are cheaper, the reserves are more abundant, and the production cost is reduced; the hydroxide conducting polymer can be combined with a nickel-iron catalyst, so that a high pH value environment is provided for a rapid electrochemical reaction, and the hydrogen production rate is increased.

In order to solve the technical problems, the invention provides a hydrogen production system by applying a nickel-iron catalyst and a hydroxide conducting polymer through hydro-electric decomposition, which comprises an electrolytic cell, wherein the electrolytic cell comprises a cell body with an opening at the top and a partition plate arranged at the bottom in the cell body, the partition plate divides the interior of the cell body into a positive electrode groove and a negative electrode groove, the upper side of the positive electrode groove is communicated with the upper side of the negative electrode groove, a positive electrode is arranged in the positive electrode groove, and a negative electrode is arranged in the negative electrode groove;

the nickel-iron catalyst is arranged in the anode tank, the hydroxide conducting polymer is arranged in the cathode tank, and the hydroxide conducting polymer is combined with the nickel-iron catalyst to provide a high pH value environment for rapid electrochemical reaction.

Furthermore, the height of the partition plate is not less than the depth of the tank body, a through hole is formed in the upper side of the partition plate in a penetrating mode, and the height of the through hole is less than the height of the top of the tank body.

Furthermore, the height of the partition plate is smaller than the depth of the groove body.

Furthermore, an insertion groove is formed in the inner side wall of the groove body, and the partition plate comprises a plate main body and an insertion plate body which is connected with two ends of the plate main body and inserted into the insertion groove.

Further, the nickel iron catalyst is prepared according to the following steps of 1: 1-10 mol ratio of nickel and iron, adding pretreated foamed nickel into an iron salt solution, performing ultrasonic treatment, and fully dissolving to obtain the nickel-iron catalyst.

Further, the pretreatment of the foamed nickel comprises acid washing, water washing and ethanol washing.

Further, the iron salt is Fe (NO)₃ )³•9H₂O and/or FeCl₃•6H₂At least one of O.

Further, the foamed nickel is sheet-shaped.

Further, the thickness of the foam nickel is 1.2-1.6mm, and the surface density is 360-380g/m²。

The technical scheme of the invention at least comprises the following beneficial effects:

1. the nickel and iron elements in the nickel-iron catalyst are cheaper and the reserves are more abundant, so that the production cost is reduced;

2. the hydroxide conducting polymer can be combined with a nickel-iron catalyst, so that a high pH value environment is provided for a rapid electrochemical reaction, and the hydrogen production rate is increased;

3. the upper end in positive pole groove and the upper end intercommunication in negative pole groove, along with the electrolytic going on, the liquid in positive pole groove and the negative pole inslot can reduce, and when the liquid in positive pole groove and the negative pole inslot no longer mixed the contact, the electrolysis stopped, and gas no longer produces, can remind the staff to supply liquid from this and be unlikely to damage positive electrode and negative electrode.

Drawings

FIG. 1 is a schematic view of the construction of an electrolytic cell according to an embodiment of the present invention;

FIG. 2 is a front view of a cross-sectional structure taken along the direction A-A in accordance with an embodiment of the present invention;

FIG. 3 is a front view of a cross-sectional structure taken along the direction A-A in accordance with another embodiment of the present invention;

FIG. 4 is a schematic view showing the structure of an electrolytic cell according to another embodiment of the present invention.

In the figure:

1. a trough body;

2. a positive electrode groove;

3. a partition plate; 301. a plate main body; 302. a board inserting body;

4. a negative electrode groove;

5. a through hole;

6. a positive electrode;

7. and a negative electrode.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 4 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.

As shown in fig. 1, a system for producing hydrogen by using a ferronickel catalyst and a hydroxide conducting polymer through hydro-electric decomposition comprises an electrolytic cell, wherein the electrolytic cell comprises a cell body 1 with an open top and a partition plate 3 arranged at the bottom in the cell body 1, the partition plate 3 partitions the interior of the cell body 1 into an anode cell 2 and a cathode cell 4, the upper side of the anode cell 2 is communicated with the upper side of the cathode cell 4, a positive electrode 6 is arranged in the anode cell 2, and a negative electrode 7 is arranged in the cathode cell 4;

the nickel-iron catalyst is arranged in the anode tank 2, the hydroxide conducting polymer is arranged in the cathode tank 4, and the hydroxide conducting polymer is combined with the nickel-iron catalyst to provide a high pH value environment for rapid electrochemical reaction.

Specifically, the hydrogen production system by using the ferronickel catalyst and the hydroxide conducting polymer through the hydro-electric decomposition comprises an electrolytic cell, wherein the electrolytic cell comprises a cell body 1 with an opening at the top and a partition plate 3 arranged at the bottom in the cell body 1, the partition plate 3 partitions the interior of the cell body 1 into an anode cell 2 and a cathode cell 4, the upper side of the anode cell 2 is communicated with the upper side of the cathode cell 4, a positive electrode 6 is arranged in the anode cell 2, and a negative electrode 7 is arranged in the cathode cell 4;

the nickel-iron catalyst is arranged in the anode tank 2, and the nickel and iron elements in the nickel-iron catalyst are cheaper and are more abundant, so that the production cost is reduced; and a hydroxide conducting polymer is arranged in the negative electrode tank 4, the hydroxide conducting polymer is an existing synthesis component, and the nickel-iron catalyst hydroxide conducting polymer is combined with the nickel-iron catalyst, so that a high pH value environment is provided for a rapid electrochemical reaction, and the hydrogen production rate is improved.

According to an embodiment of the invention, as shown in fig. 1-2, the height of the partition board 3 is the same as the depth of the tank body 1, so that the top of the partition board 3 is flush with the top of the tank body 1, and the appearance is more regular and beautiful. Through-hole 5 has been seted up in the upside of baffle 3 through-going, and this through-hole 5 makes the upside of anodal groove 2 and the upside intercommunication of negative pole groove 4, and when the liquid level in anodal groove 2 and negative pole groove 4 was higher than the height of through-hole 5, the mixed intercommunication of the liquid in anodal groove 2 and the negative pole groove 4, thereby positive electrode 6 that is located anodal groove 2 and the negative electrode 7 that is located negative pole groove 4 can normally work water electrolysis hydrogen manufacturing. In-process of water electrolysis hydrogen manufacturing, the liquid in positive pole groove 2 and the liquid in negative pole groove 4 can reduce, when the liquid level drops to being less than through-hole 5, the liquid in positive pole groove 2 and the negative pole groove 4 is no longer mixed contact, even if positive electrode 6 and negative electrode 7 are in normal on-state, water electrolysis reaction also can stop, hydrogen is no longer produced, here can set up the flow meter (prior art, not shown in the figure) that is used for detecting the hydrogen flow, external controller and alarm (prior art, not shown in the figure), once hydrogen is no longer produced, the alarm will remind the staff that the liquid level in positive pole groove 2 and the negative pole groove 4 is low excessively, liquid is not enough, need the fluid infusion, need not to pay close attention to constantly to the staff, it is more intelligent, and be unlikely to damage positive electrode 6 and negative electrode 7.

In other embodiments, the height of the partition board 3 is greater than the depth of the tank body 1, and the height of the through hole 5 formed in the partition board 3 is less than the height of the top of the tank body 1, so that the effects of the above embodiments can be achieved.

According to another embodiment of the present invention, as shown in fig. 1 and 3, the height of the separator 3 is less than the depth of the tank body 1, so that the top of the positive electrode tank 2 is communicated with the top of the negative electrode tank 4, and the separator 3 does not need to be provided with the through hole 5, so that the manufacturing process is simpler and the manufacturing cost is saved.

In an embodiment of the present invention, as shown in fig. 4, two insertion grooves are formed on the inner side wall of the tank body 1, the insertion grooves are arranged along the vertical direction, and the two insertion grooves are respectively located on two opposite side walls of the tank body 1. The partition board 3 comprises a board main body 301 and an inserting board body 302 which is connected with two ends of the board main body 301 and is inserted into the inserting groove. The partition board 3 is integrally cut and formed, and the manufacturing process is simple. The partition plate 3 is connected with the tank body 1 in a plug-in mounting mode, so that the tank is convenient to disassemble and assemble and is convenient to clean.

In another embodiment of the invention, the nickel iron catalyst is in a 1: 1-10 mol ratio of nickel and iron, adding pretreated foamed nickel into an iron salt solution, performing ultrasonic treatment, and fully dissolving to obtain the nickel-iron catalyst.

Further, the pretreatment of the foamed nickel is acid washing, water washing and ethanol washing, which are prior art and are not described herein. The iron salt is at least one of Fe (NO 3) 3.9H 2O and/or FeCl3.6H2O. The foamed nickel is in a sheet shape. The thickness of the foamed nickel is 1.2-1.6mm, and the areal density is 360-380g/m 2. In the embodiment, the foamed nickel is a commercial product of Shenzhen, Kechuizzhida science and technology Limited with the trademark EQ-bcnf-16 m.

The working principle of the invention is as follows: the cleaned partition plate 3 is installed in the tank body 1, and the partition plate 3 is connected with the tank body 1 in a manner that the inserting plate body 302 is inserted into the inserting tank, so that the disassembly and the assembly are convenient and the cleaning is convenient; the accommodating cavity in the tank body 1 is divided into a positive tank 2 and a negative tank 4 by the partition plate 3, a positive electrode 6 is inserted into the positive tank 2, a negative electrode 7 is inserted into the negative tank 4, the positive tank 2 is filled with a nickel-iron catalyst, the negative tank 4 is filled with a hydroxide conducting polymer, and the nickel-iron catalyst is combined with the hydroxide conducting polymer to provide a high-pH-value environment for rapid electrochemical reaction and improve the hydrogen production rate; wherein, nickel and iron in the nickel-iron catalyst are cheaper and have more abundant reserves, thereby reducing the production cost.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.