Preparation method of cobalt, nickel double-layer hydroxide modified titanium dioxide nanotube array and application of photoelectrochemical hydrolysis hydrogen production
A double-layer hydroxide, nanotube array technology, applied in nanotechnology for materials and surface science, electrolysis components, electrolysis processes, etc., can solve the problems of low photoelectric catalytic activity, difficulty in efficiently utilizing sunlight, etc. Easy to operate, controllable coverage density, and beneficial to the transfer of photogenerated electrons
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0049] The polished titanium sheet (1×3cm 2 ) surface is cleaned and air-dried. Dissolve 0.5 g of ammonium fluoride in 100 mL of hexanediol aqueous solution, stir evenly, immerse one end of the cleaned titanium sheet in the above solution, and clamp the other end with the electrode clip of a potentiostat, and control the voltage at 50V. 2h. The samples were taken out, washed alternately with ethanol and deionized water, and dried in a vacuum drying oven at 60°C for 5 h. Put it in a muffle furnace and heat it at 600°C for 2h. Next, prepare CoCl at a concentration of 5 mM 2 ·6H 2 O, Ni (NO 3 ) 2 ·6H 2 O mixed solution, take 50mL and put it in a beaker, and place it in a three-electrode system for electrodeposition at a constant potential of -1V for 5s. The samples were washed alternately with ethanol and deionized water, and stored in a vacuum drying oven. figure 1 for the prepared TiO 2 SEM picture of the nanotube array. shows that at a small magnification, TiO 2 Th...
Embodiment 2
[0051] The polished titanium sheet (1×3cm 2 ) surface is cleaned and air-dried. Dissolve 0.5 g of ammonium fluoride in 100 mL of hexanediol aqueous solution, stir evenly, immerse one end of the cleaned titanium sheet in the above solution, and clamp the other end with the electrode clip of a potentiostat, and control the voltage at 50V. 2h. The samples were taken out, washed alternately with ethanol and deionized water, and dried in a vacuum drying oven at 60°C for 5 h. Put it in a muffle furnace and heat it at 600°C for 2h. Next, prepare CoCl at a concentration of 5 mM 2 ·6H 2 O, Ni (NO 3 ) 2 ·6H 2 O mixed solution, take 50mL and place it in a beaker, and place it in a three-electrode system for electrodeposition at constant potential -1V for 20s. The samples were washed alternately with ethanol and deionized water, and stored in a vacuum drying oven.
Embodiment 3
[0053] The polished titanium sheet (1×3cm 2 ) surface is cleaned and air-dried. Dissolve 0.5 g of ammonium fluoride in 100 mL of hexanediol aqueous solution, stir evenly, immerse one end of the cleaned titanium sheet in the above solution, and clamp the other end with the electrode clip of a potentiostat, and control the voltage at 50V. 2h. The samples were taken out, washed alternately with ethanol and deionized water, and dried in a vacuum drying oven at 60°C for 5 h. Put it in a muffle furnace and heat it at 600°C for 2h. Next, prepare CoCl at a concentration of 5 mM 2 ·6H 2 O, Ni (NO 3 ) 2 ·6H 2 O mixed solution, take 50mL and place it in a beaker, and place it in a three-electrode system for electrodeposition under constant potential -1V for 30s. The samples were washed alternately with ethanol and deionized water, and stored in a vacuum drying oven.
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More