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Novel water electrolysis hydrogen production process

A technology of electrolysis of water and process, applied in the field of electrolysis of water, can solve problems such as complex process, high energy consumption, and low efficiency, and achieve the effects of improving product quality, reducing power loss, and reducing costs

Pending Publication Date: 2020-04-28
西安泰金新能科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, an alkaline solution with a temperature of 50-80°C is used in electrolysis of water to produce hydrogen. A diaphragm is used to isolate the cathode and anode to prevent the mixing of oxygen and hydrogen. The hydrogen needs to be purified and purified later, so there are low efficiency and energy consumption. Large, large investment, complex process and other issues

Method used

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  • Novel water electrolysis hydrogen production process
  • Novel water electrolysis hydrogen production process

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Embodiment 1

[0022] combine Figure 1-2 As shown, the novel electrolysis water hydrogen production process provided by the present invention comprises the following steps:

[0023] 1) Insert a nickel-cobalt double metal hydroxide titanium electrode in the electrolyte, and connect its anode and cathode with the positive and negative electrodes of the power supply respectively;

[0024] 2) Turn on the power switch, hydrogen bubbles are generated around the cathode, the anode undergoes a reversible oxidation reaction, and no bubbles are generated;

[0025] 3) When no bubbles are generated in the cathode in step 2), turn off the power switch;

[0026] 4) The electrolyte is heated to 50-120°C, and the reversibly oxidized anode is reduced to release oxygen bubbles.

[0027] Preferably, the temperature of the electrolyte in the step 4) is 90-110°C.

[0028] Preferably, the temperature of the electrolyte in the step 1) is room temperature, such as 25°C.

[0029] Further, the electrolyte is an ...

Embodiment 2

[0047] combine Figure 1-2 As shown, the novel electrolysis water hydrogen production process provided by the invention, the actual preparation process is referring to experiment 2:

[0048] (1) Cut the TA1 titanium mesh into 2*2cm, ultrasonically wash it with metal cleaning agent, anhydrous ethanol and deionized water for several times, then boil and pickle it with 10% oxalic acid solution for 2 hours, and then wash it with deionized water after taking it out. time, and then put it in a 60°C oven to dry for 2 hours for later use;

[0049] (2) 15mmol Ni (NO 3 ) 2 6H 2 Dissolve O in 100 mL of deionized water and stir until completely dissolved. Finally, the pH of the mixed solution is adjusted to about 6 with ammonia water, as the electrodeposition electrolyte for standby; 0.3mol NaOH is dissolved in 100ml of deionized water, then heated to boiling for deoxygenation, and cooled to room temperature as the electrolytic water electrolyte for standby;

[0050] (3) Using a thr...

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Abstract

The invention belongs to the technical field of water electrolysis, and relates to a novel water electrolysis hydrogen production process. The process comprises: inserting a metal compound or a metalcompound composite nonmetal anode and cathode into an electrolyte, and respectively connecting the anode and the cathode with the positive electrode and the negative electrode of a power supply; turning on a power switch so that hydrogen bubbles are generated around the cathode, and a reversible oxidation reaction occurs on the anode without generation of bubbles; when no bubbles are generated onthe cathode, turning off the power switch; heating the electrolyte to 50-120 DEG C, and carrying out anodic reduction to release oxygen bubbles. According to the process, an electrochemical-chemical two-step method is adopted to decompose water, and an oxygen evolution reaction of the anode and a hydrogen evolution reaction of the cathode are separately carried out from the aspect of time, so thata diaphragm is omitted, the cost is greatly reduced, the problems of mixing and separation of oxygen and hydrogen are avoided, high-purity hydrogen is easier to prepare, the purification cost is reduced, and the product quality is improved.

Description

technical field [0001] The invention belongs to the technical field of electrolyzed water, and relates to a novel process for producing hydrogen from electrolyzed water. Background technique [0002] The demand for energy in modern society is increasing day by day, and traditional energy will cause serious environmental problems, so new energy is urgently needed to meet the demand. Hydrogen is a clean secondary energy with high calorific value and no pollution. At present, hydrogen production methods mainly include water gas method and water electrolysis hydrogen production method. The water-gas method needs to consume fossil fuels, so the hydrogen production by electrolysis of water will be the inevitable way in the future. [0003] Hydrogen production by electrolysis of water is a green technical route, and the current output has accounted for 4% of the total hydrogen output. However, at present, an alkaline solution with a temperature of 50 to 80 °C is used in the prod...

Claims

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Application Information

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IPC IPC(8): C25B1/04C25B9/06C25B11/04C25B15/00C25B9/17
CPCC25B1/04C25B11/04C25B15/00C25B9/17Y02E60/36
Inventor 王正冯庆贾波郝小军柴作强
Owner 西安泰金新能科技股份有限公司
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