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Electrode for hydrogen evolution by electrolyzing water and device and method for hydrogen production by electrolyzing water

A technology of hydrogen evolution electrode and hydrogen production device, applied in the direction of electrodes, electrolysis components, electrolysis process, etc., can solve environmental problems, CO poisonous gas, consumption of fossil energy and other problems, reduce the cost of electricity for hydrogen production, and improve the efficiency of hydrogen production , The effect of reducing electricity costs

Pending Publication Date: 2022-07-05
KUNMING UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the industrial production of hydrogen still mainly uses fossil energy as the raw material, and the reaction of coal, oil or natural gas with water vapor at high temperature produces H 2 Mixed gas with CO, but this method needs to consume fossil energy at the cost of producing CO poisonous gas, which brings environmental problems

Method used

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  • Electrode for hydrogen evolution by electrolyzing water and device and method for hydrogen production by electrolyzing water
  • Electrode for hydrogen evolution by electrolyzing water and device and method for hydrogen production by electrolyzing water
  • Electrode for hydrogen evolution by electrolyzing water and device and method for hydrogen production by electrolyzing water

Examples

Experimental program
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Embodiment 1

[0031] like figure 1 As shown, the electrolytic water hydrogen production device of Embodiment 1 includes an electrolytic cell 10, a hydrogen-evolution electrode 21a and an oxygen-evolution electrode 22; The proton exchange membrane 11 is divided into a first space 10a and a second space 10b, the first space 10a has a hydrogen gas discharge channel 12, and the second space 10b has an oxygen gas discharge channel 13; the hydrogen evolution electrode 21a as the cathode electrode is located in the first space 10a, The oxygen evolution electrode 22 as the anode electrode is located in the second space 10b.

[0032] A heat dissipation module 30 is disposed below the electrolytic cell 10 . The heat dissipation module 30 may be made of metal material, and a heat dissipation fluid channel 31 may be provided in the interior of the heat dissipation module to accelerate heat dissipation. Further, a thermoelectric conversion module 23 may be provided between the electrolytic cell 10 and ...

Embodiment 2

[0042] The main difference between Example 2 and Example 1 is that in Example 2, an integrated design is carried out on the hydrogen evolution electrode for electrolysis of water and the thermoelectric conversion module. Below, only the difference between embodiment 2 and embodiment 1 is described, other parts can refer to embodiment 1.

[0043] Specifically, as Figure 7 and 8 As shown, in Embodiment 2, the hydrogen evolution electrode 21b itself includes a thermoelectric conversion module 213, and the package body 2132 of the thermoelectric conversion module 213 is provided with a plurality of P-type thermoelectric conversion elements 2131P and a plurality of N-type thermoelectric conversion elements 2131N, and the P-type thermoelectric conversion elements 2131N. The conversion element 2131P and the N-type thermoelectric conversion element 2131N are alternately arranged and connected in series through the conductive sheet 2133; wherein, the P-type thermoelectric conversion ...

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Abstract

The invention discloses a water electrolysis hydrogen evolution electrode and a water electrolysis hydrogen production device and method. Wherein the water electrolysis hydrogen evolution electrode comprises a thermoelectric sheet made of a BiCuSeO-based thermoelectric material and a hydrogen evolution catalyst loaded on the surface of the thermoelectric sheet; the hydrogen evolution electrode is adopted in the water electrolysis hydrogen production device and method. The water electrolysis hydrogen evolution electrode comprises the thermoelectric piece made of the BiCuSeO-based thermoelectric material and the hydrogen evolution catalyst loaded on the surface of the thermoelectric piece, the thermoelectric effect of the thermoelectric material and the synergistic effect between the BiCuSeO-based thermoelectric material and the hydrogen evolution catalyst material are ingeniously utilized, and the overpotential in the water electrolysis hydrogen production process can be effectively reduced; the hydrogen production electricity utilization cost is greatly reduced, and the hydrogen production efficiency is improved. Furthermore, the thermoelectric conversion module is adopted to provide electrolysis voltage, so that the heat of the electrolytic tank is effectively utilized, and the electricity utilization cost of hydrogen production can also be reduced.

Description

technical field [0001] The invention relates to the field of hydrogen production by electrolysis of water; more particularly, to an electrode for hydrogen evolution of water by electrolysis, a device and method for hydrogen production by electrolysis of water. Background technique [0002] Hydrogen energy is regarded as a renewable energy with broad application prospects due to its advantages of wide sources, high combustion calorific value, and zero pollution. [0003] At present, the industrial production of hydrogen still mainly uses fossil energy as raw material, and reacts coal, oil or natural gas with water vapor at high temperature to produce H 2 Mixed gas with CO, but this method needs to consume fossil energy at the expense of producing CO toxic gas, which brings environmental problems. The electrolysis of water can directly convert water into hydrogen and oxygen to obtain high-purity hydrogen. At the same time, the source of water is abundant. Therefore, the prepa...

Claims

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Application Information

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IPC IPC(8): C25B11/067C25B11/075C25B9/60C25B9/67C25B1/04
CPCC25B11/067C25B11/075C25B9/60C25B9/67C25B1/04Y02E60/36
Inventor 徐明丽樊希安师朝阳
Owner KUNMING UNIV OF SCI & TECH
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