A device and method for electrolyzing water to generate high-purity hydrogen
A high-purity hydrogen and water electrolysis technology, applied in electrolysis components, electrolysis process, electrodes, etc., can solve the problems of mixing hydrogen and oxygen, and achieve the effect of reducing energy input and reducing overpotential
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Embodiment 1
[0035] A device for electrolyzing water to produce high-purity hydrogen, such as figure 1 As shown, the device includes an electrolytic cell, and one end of the cathode chamber of the electrolytic cell is coated with a hydrogen-producing catalyst Ni 3 The Ti sheet 5 of P is sealed, and one end of the anode chamber is coated with an oxygen-generating catalyst RuO 2 The Ti sheet 6 of the cathode chamber is sealed, and the Ti sheet 5 of the cathode chamber and the Ti sheet 6 of the anode chamber are facing each other, and an angle is formed between the cathode chamber and the anode chamber at the docking place;
[0036] The other ends of the anode chamber and the cathode chamber away from the docking part are respectively provided with an air outlet 1 and an air outlet 2; wherein, the cathode chamber and the anode chamber are filled with an alkaline electrolyte, and the cathode chamber is built into an auxiliary Electrode NiOOH pole piece 3, the auxiliary electrode Ni(OH) is bui...
Embodiment 2
[0045] (1) 80 parts by mass of RuO 2 Mix with 10 mass parts conductive agent, then add 10 mass parts binding agent and ethanol (the amount of ethanol makes catalyst RuO 2 , conductive agent, and binder can be stirred to form a slurry as a requirement, such as 40 to 80 parts by mass, and the following examples are all explained here as the criterion), and stirred at room temperature for 10 hours to form an oxygen-producing catalyst slurry; 80 parts by mass Part Ni 3 P mixed with 10 parts by mass of conductive agent, then added 10 parts by mass of binder and ethanol, and stirred at room temperature for 10 hours to form a hydrogen-producing catalyst slurry;
[0046] (2) 5 mg of hydrogen-producing catalyst slurry and oxygen-producing catalyst slurry were uniformly coated on a Ti sheet with a thickness of 0.1 cm and a length and width of 3 cm, and vacuum-dried at 70°C for 24 hours to obtain two coatings. Catalyst Ti sheet;
[0047] (3) Take 2.8g KOH solid, add 500mL water, and m...
Embodiment 3
[0056] (1) 65 parts by mass of RuO 2 Mix with 10 parts by mass of conductive agent, then add 10 parts by mass of binder and ethanol, and stir at room temperature for 10 hours to form an oxygen-producing catalyst slurry; 65 parts by mass of Ni 3 P mixed with 10 parts by mass of conductive agent, then added 10 parts by mass of binder and ethanol, and stirred at room temperature for 10 hours to form a hydrogen-producing catalyst slurry;
[0057] (2) Take 7 mg of the hydrogen-producing catalyst slurry and the oxygen-producing catalyst slurry and apply them uniformly on a Ti sheet with a thickness of 0.1 cm, a length and a width of 3 cm, and vacuum-dry at 70°C for 24 hours to obtain two coatings. Catalyst Ti sheet;
[0058] (3) Take 2.8g KOH solid, add 500mL water, and make 0.1M KOH solution;
[0059] (4) The commercial Ni(OH) 2 As the working electrode, the mercury-mercuric oxide electrode is used as the reference electrode, and the platinum sheet is used as the counter electro...
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