Application of perovskite material in hydrogen production by dye-sensitized photolysis of water
A perovskite material, dye sensitization technology, applied in the direction of hydrogen, nickel compounds, inorganic chemistry, etc., can solve the problems of no catalytic activity, inertness, etc., and achieve the effect of considerable yield, mild reaction conditions, and increased density
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0062] The aforementioned LaNiO 3 The preparation method of nanocube comprises the following steps:
[0063] According to the concentration of S1, lanthanum nitrate 5~6mg / ml, nickel nitrate 3~4mg / ml, polyvinylpyrrolidone 3~4mg / ml, glycine 6~7mg / ml were dissolved in deionized water, and after ultrasonic treatment for 4~6 minutes , to obtain a mixture;
[0064] S2 adjust the pH of the obtained mixed solution to 7.7, react at 180°C for 12 hours, filter and dry the obtained product with deionized water and ethanol solution to obtain a precipitate;
[0065] S3 Calcinate the obtained precipitate at 600-700°C for 1-3 hours to obtain LaNiO 3 nanocube.
Embodiment 1
[0067] NeO 3 Nano particle preparation method, it comprises the following steps:
[0068] In S1, lanthanum nitrate and nickel nitrate were dissolved in deionized water, and after ultrasonic treatment for 5 minutes, a mixed solution with a concentration of 5.41 mg / ml of lanthanum nitrate and 3.625 mg / ml of nickel nitrate was obtained;
[0069] S2 Add the obtained mixed solution into a NaOH solution with a concentration of 0.375 mol / L in a volume ratio of 4:1 and stir it, then conduct condensation-reflux treatment at 60°C for 4 hours, and obtain a precipitate by centrifugation or suction filtration;
[0070] S3 After cleaning and drying the obtained precipitate, it was calcined at 650°C for 2 hours to obtain black LaNiO 3 catalyst.
[0071] This embodiment obtains LaNiO with relatively large specific surface area 3 particles.
Embodiment 2
[0073] NeO 3 The preparation method of nanorod, it comprises the following steps:
[0074] S1 takes lanthanum nitrate, nickel nitrate and PVP (polyvinylpyrrolidone), dissolves them in deionized water, and after ultrasonic treatment for 5 minutes, the obtained concentrations are respectively 5.41 mg / ml of lanthanum nitrate, 3.625 mg / ml of nickel nitrate, and 3.625 mg / ml of PVP (polyvinylpyrrolidone). ) 1.87mg / ml mixed solution;
[0075] S2 Add the obtained mixed solution into a NaOH solution with a concentration of 0.375 mol / L in a volume ratio of 4:1 and stir it, then conduct condensation-reflux treatment at 60°C for 4 hours, and obtain a precipitate by centrifugation or suction filtration;
[0076] S3, after cleaning and drying the obtained precipitate, calcined at 650°C for 2 hours to obtain LaNiO 3 Nano stave.
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More 
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
