CN221663030U - A device for preparing anode catalyst used in organic matter oxidation - Google Patents

Abstract

The utility model discloses a preparation device for anode catalysts used in organic oxidation, including a reaction mechanism and an electrolysis mechanism, wherein the reaction mechanism includes a heating device, a reactor placed in a heating chamber of the heating device, and a chromatography column placed above the reactor; the electrolysis mechanism includes a proton exchange membrane electrolyzer and a DC power supply for powering it; the feed port of the proton exchange membrane electrolyzer is connected to the reactor outlet through an output pipe, and the discharge port of the proton exchange membrane electrolyzer is connected to the gas inlet of the chromatography column through an input pipe; and a conductive substrate is placed in the chromatography column. The utility model can be used to prepare catalysts for electrolytic water anode oxidation of organic matter and electrocatalytic oxygen evolution reaction coupled cathode hydrogen production. The preparation device has a simple structure, can realize rapid preparation of large-area catalysts under mild conditions, and the device is clean and environmentally friendly, and the catalyst synthesized by the device has excellent performance.

Description

A device for preparing anode catalyst used in organic matter oxidation

Technical Field

The utility model belongs to a catalyst synthesis device, in particular to a preparation device of an anode catalyst used in the oxidation of organic matter.

Background Art

Hydrogen energy has received extensive attention from researchers due to its advantages such as high combustion calorific value and cleanliness. At present, the main source of hydrogen is still fossil fuel hydrogen production. Although this method has mature technology and strong scale effect, fossil fuel hydrogen production will emit a large amount of carbon dioxide and damage the environment, which runs counter to the current concept of protecting the environment, energy conservation and emission reduction. Therefore, it is urgent to find a new hydrogen production method. In recent years, hydrogen production by water electrolysis has attracted extensive attention from researchers due to its advantages such as cleanliness, environmental protection, and high purity of hydrogen production. However, the high overpotential and high cost of hydrogen production by water electrolysis restrict its industrial application prospects. In response to these problems, using catalysts with excellent performance to reduce its overpotential and improve efficiency and reduce costs is an important solution for the effective utilization of resources in the future.

In previous studies, precious metals are generally considered to be excellent catalysts for the coupled hydrogen production from water electrolysis and oxidation, but their development is restricted by their high prices and limited raw materials. Research in recent years has mainly focused on reducing the loading of precious metals or using cheap and abundant transition metals to develop new catalysts for the coupled hydrogen production from water electrolysis and oxidation. Traditional catalyst synthesis methods and devices, such as hydrothermal synthesis and its devices, have the disadvantages of high requirements for synthesis conditions and the inability to prepare on a large scale, which restricts the further development of catalyst research.

Utility Model Content

The utility model is proposed to overcome the shortcomings in the prior art, and its purpose is to provide a device for preparing an anode catalyst used in the oxidation of organic matter.

The utility model is realized by the following technical solutions:

A device for preparing an anode catalyst used in the oxidation of organic matter comprises a reaction mechanism and an electrolysis mechanism, wherein the reaction mechanism comprises a heating device, a reactor placed in a heating chamber of the heating device, and a chromatography column placed above the reactor; the electrolysis mechanism comprises a proton exchange membrane electrolyzer and a DC power supply for supplying energy thereto; the feed inlet of the proton exchange membrane electrolyzer is connected to the reactor outlet via an output pipe, and the discharge port of the proton exchange membrane electrolyzer is connected to the gas inlet of the chromatography column via an input pipe; and a conductive substrate is placed in the chromatography column and is located above a partition.

In the above technical solution, a pump is arranged on the output pipe, one end of the output pipe extends into the reactor and is located above the liquid surface, and the output pipe and the outlet of the reactor are sealed by a sealing member.

In the above technical solution, the top of the chromatography column is open and is provided with a detachable sealing cover.

In the above technical solution, the gas inlet of the chromatography column is arranged below the partition.

In the above technical solution, the lower end of the chromatography column is inserted into the reactor, and the two are sealed.

In the above technical solution, the positive electrode of the DC power supply is connected to the anode plate of the proton exchange membrane electrolyzer through an electric wire, and the negative electrode thereof is connected to the cathode plate of the proton exchange membrane electrolyzer through an electric wire.

In the above technical solution, the feed inlet and the discharge outlet of the proton exchange membrane electrolyzer are both arranged on the anode plate side.

In the above technical solution, the conductive substrate roll is cylindrical.

The beneficial effects of the utility model are:

The utility model provides a preparation device for an anode catalyst used in the oxidation of organic matter, which can be used to prepare catalysts for the anode oxidation of organic matter by electrolysis of water and the coupled cathode hydrogen production by electrocatalytic oxygen evolution reaction. The preparation device has a simple structure and can realize the rapid preparation of large-area catalysts under mild conditions. The device is clean and environmentally friendly, and the catalyst synthesized by the device has excellent performance.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG2 is a physical photograph of the Ni(OH) ₂ catalyst obtained in Application Example 1;

FIG3 is a scanning electron microscope photograph of the Ni(OH) ₂ catalyst obtained in Application Example 1;

FIG. 4 is a comparison chart of the oxygen evolution reaction performance of the Ni(OH) ₂ catalyst obtained in Application Example 1 and the cleaned nickel foam.

in:

1 Heating device 2 Reactor

3 Chromatography column 4 Pump

5 Proton exchange membrane electrolyzer 6 DC power supply

7 Output pipe 8 Input pipe

9 separator 10 conductive substrate.

For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and through specific implementation methods.

As shown in Figure 1, a preparation device for an anode catalyst used in the oxidation of organic matter includes a reaction mechanism and an electrolysis mechanism, wherein the reaction mechanism includes a heating device 1, a reactor 2 placed in a heating chamber of the heating device 1, and a chromatography column 3 placed above the reactor 2; the electrolysis mechanism includes a proton exchange membrane electrolyzer 5 and a DC power supply 6 for powering it; the feed inlet of the proton exchange membrane electrolyzer 5 is connected to the outlet of the reactor 2 through an output pipe 7, and the discharge port of the proton exchange membrane electrolyzer 5 is connected to the air inlet of the chromatography column 3 through an input pipe 8; a conductive substrate 10 is placed in the chromatography column 3 and is located above the partition 9.

The pump 4 is arranged on the output pipe 7 , one end of the output pipe 7 extends into the reactor 2 and is located above the liquid surface, and the output pipe 7 and the outlet of the reactor 2 are sealed by a sealing member.

The top of the chromatography column 3 is open and is provided with a detachable sealing cover.

The gas inlet of the chromatography column 3 is arranged below the partition 9 .

The lower end of the chromatography column 3 is inserted into the reactor 2, and the two are sealed.

The positive electrode of the DC power supply 6 is connected to the anode plate of the proton exchange membrane electrolyzer 5 through an electric wire, and the negative electrode thereof is connected to the cathode plate of the proton exchange membrane electrolyzer 5 through an electric wire.

The feed inlet and the discharge outlet of the proton exchange membrane electrolyzer 5 are both arranged on the anode plate side.

The conductive substrate 10 is rolled into a cylindrical shape.

In this embodiment, the reactor is a two-necked round-bottom flask, and the heating device is a heating table.

Application Example 1

(1) 8000 cm ² of nickel foam was soaked in an ethanol cleaning solution, ultrasonically treated for 20 min, taken out and rinsed with deionized water, and then soaked in a 0.2 mol/L sulfuric acid solution for 20 min. After washing, it was taken out and washed with deionized water until no sulfuric acid residue was left on the surface. The treated conductive substrate 10 (nickel foam) was rolled into a cylindrical shape and placed in a chromatography column 3, and the chromatography column sealing cover was covered;

(2) Place deionized water into reactor 2 (round-bottom flask) and assemble the remaining components of the device;

(3) Turn on the heating device 1 to heat the deionized water in the reactor 2 to 80° C. The heated deionized water is passed into the proton exchange membrane electrolyzer 5 at a flow rate of 5 mL*min ^-1 through the pump 4. A current of 6 A is applied to the proton exchange membrane electrolyzer 5. The oxygen generated by the proton exchange membrane electrolyzer 5 and the deionized water flowing out of the electrolyzer outlet are passed into the air inlet of the chromatography column 3. The deionized water flows back into the reactor 2 (round-bottom flask). The mixed gas of oxygen and water vapor fills the reactor 2 and the chromatography column 3. The treated conductive substrate is corroded in the mixed gas of oxygen and water vapor for 4 h. After being taken out, it is dried in an oven at 60° C. for 1 h to obtain an anode catalyst used in the oxidation of organic matter.

A physical photograph of the prepared anode catalyst is shown in FIG2 , a scanning electron microscope photograph of the Ni(OH) ₂ catalyst is shown in FIG3 , and a comparison of the oxygen evolution reaction performance of the Ni(OH) ₂ catalyst obtained in Application Example 1 and the cleaned nickel foam is shown in FIG4 . It can be seen that the utility model device can quickly prepare large-area catalysts, and the prepared catalysts are uniform and have excellent performance.

It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

The applicant declares that the above is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. Technical personnel in the relevant technical field should understand that any changes or substitutions that can be easily thought of by technical personnel in the relevant technical field within the technical scope disclosed in the present utility model fall within the protection scope and disclosure scope of the present utility model.

Claims (6)

1. The preparation device of the anode catalyst applied to the oxidation of the organic matters is characterized in that: the device comprises a reaction mechanism and an electrolysis mechanism, wherein the reaction mechanism comprises a heating device (1), a reactor (2) arranged in a heating cavity of the heating device (1) and a chromatographic column (3) arranged above the reactor (2); the electrolysis mechanism comprises a proton exchange membrane electrolysis cell (5) and a direct current power supply (6) for supplying power to the proton exchange membrane electrolysis cell; the feed inlet of the proton exchange membrane electrolytic cell (5) is connected with the outlet of the reactor (2) through an output pipe (7), and the discharge outlet of the proton exchange membrane electrolytic cell (5) is connected with the air inlet of the chromatographic column (3) through an input pipe (8); the conductive substrate (10) is placed in the chromatographic column (3).

2. The preparation device of the anode catalyst applied to the oxidation of organic matters according to claim 1, wherein: the conductive substrate (10) is placed above the partition plate (9) of the chromatographic column (3), and the conductive substrate (10) is rolled into a cylinder shape.

3. The preparation device of the anode catalyst applied to the oxidation of organic matters according to claim 1, wherein: the output pipe (7) is provided with a pump (4), one end of the output pipe (7) extends into the reactor (2) and is positioned above the liquid level, and the output pipe (7) is sealed with the outlet of the reactor (2) through a sealing piece.

4. The preparation device of the anode catalyst applied to the oxidation of organic matters according to claim 1, wherein: the top end of the chromatographic column (3) is open, and a detachable sealing cover is arranged; the air inlet of the chromatographic column (3) is arranged below the partition board (9), the lower end of the chromatographic column (3) is inserted into the reactor (2), and the two are sealed.

5. The preparation device of the anode catalyst applied to the oxidation of organic matters according to claim 1, wherein: the positive electrode of the direct current power supply (6) is connected with the positive plate of the proton exchange membrane electrolytic tank (5) through an electric wire, and the negative electrode of the direct current power supply is connected with the negative plate of the proton exchange membrane electrolytic tank (5) through an electric wire.

6. The preparation device of the anode catalyst applied to the oxidation of organic matters according to claim 1, wherein: the feed inlet and the discharge outlet of the proton exchange membrane electrolytic tank (5) are arranged at the anode plate side.