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Rare earth element doped titanium-based mesoporous titanium dioxide platinized catalyst material and preparation method and application thereof

A technology of mesoporous titanium dioxide and rare earth elements, applied in the direction of electrode, electrolysis process, electrode shape/type, etc., can solve the problems of increased cost, high price, low platinum content, etc., and achieve easy operation, improved electrode stability, and improved catalytic performance. active effect

Inactive Publication Date: 2018-04-20
CHAOHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the content of platinum in nature is low, the price is expensive, and the cost is increased

Method used

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  • Rare earth element doped titanium-based mesoporous titanium dioxide platinized catalyst material and preparation method and application thereof
  • Rare earth element doped titanium-based mesoporous titanium dioxide platinized catalyst material and preparation method and application thereof
  • Rare earth element doped titanium-based mesoporous titanium dioxide platinized catalyst material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Cut 30mm×4mm×1mm TA1-type titanium strip as the substrate, and polish it with sandpaper of 80 mesh, 200 mesh, 600 mesh, 1000 mesh, 1200 mesh and 2000 mesh in sequence to make the surface smooth and silvery white , followed by ultrasonic cleaning with secondary water, acetone and absolute ethanol for 10 minutes, and then corrosion treatment with a mixed solution of ethylene glycol and HF, the volume ratio of ethylene glycol and HF is 6:1, until no Metallic luster, finally ultrasonic treatment with acetone and absolute ethanol for 10 minutes;

[0048] (2) Stir 0.342g of P123 template in 50mL of n-butanol until dissolved, and add a ternary mixed solution of n-butanol, acetylacetone and tetrabutyl titanate in a volume ratio of 4:0.4:1, Add dropwise nitric acid to adjust the pH of the solution to 2, add dropwise a cerium nitrate solution with a concentration of 0.001mol / L, and stir at 25°C for 12 hours to form a sol; the molar ratio of P123 template agent to tetrabutyl t...

Embodiment 2

[0058] (1) Cut 30mm×4mm×1mm TA1-type titanium strip as the substrate, and polish it with sandpaper of 80 mesh, 200 mesh, 600 mesh, 1000 mesh, 1200 mesh and 2000 mesh in sequence to make the surface smooth and silvery white , followed by ultrasonic cleaning with secondary water, acetone and absolute ethanol for 10 minutes, and then corrosion treatment with a mixed solution of ethylene glycol and HF, the volume ratio of ethylene glycol and HF is 6:1, until no Metallic luster, finally ultrasonic treatment with acetone and absolute ethanol for 10 minutes;

[0059] (2) Stir 0.342g of P123 template in 50mL of n-butanol until dissolved, and add a ternary mixed solution of n-butanol, acetylacetone and tetrabutyl titanate in a volume ratio of 4:0.4:1, Add dropwise nitric acid to adjust the pH of the solution to 2, add dropwise a cerium nitrate solution with a concentration of 0.001mol / L, and stir at 25°C for 12 hours to form a sol; the molar ratio of P123 template agent to tetrabutyl t...

Embodiment 3

[0064] (1) Cut 30mm×4mm×1mm TA1-type titanium strip as the substrate, and polish it with sandpaper of 80 mesh, 200 mesh, 600 mesh, 1000 mesh, 1200 mesh and 2000 mesh in sequence to make the surface smooth and silvery white , followed by ultrasonic cleaning with secondary water, acetone and absolute ethanol for 10 minutes, and then corrosion treatment with a mixed solution of ethylene glycol and HF, the volume ratio of ethylene glycol and HF is 6:1, until no Metallic luster, finally ultrasonic treatment with acetone and absolute ethanol for 10 minutes;

[0065] (2) Stir 0.342g of P123 template in 50mL of n-butanol until dissolved, and add a ternary mixed solution of n-butanol, acetylacetone and tetrabutyl titanate in a volume ratio of 4:0.4:1, Add dropwise nitric acid to adjust the pH of the solution to 2, add dropwise a cerium nitrate solution with a concentration of 0.001mol / L, and stir at 25°C for 12 hours to form a sol; the molar ratio of P123 template agent to tetrabutyl t...

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Abstract

The invention discloses a rare earth element doped titanium-based mesoporous titanium dioxide platinized catalyst material and a preparation method and application thereof. The preparation method comprises the steps that a templating agent is dissolved into alcohol, a ternary mixed solution of alcohol, acetylacetone and a titanium source is added into the templating agent and alcohol mixed solution, acid is added to regulate the pH of the solution to 2-3, a rare earth element saline solution is added, and stirring is performed to form composite collosol; and a well treated titanium strip electrode substrate is coated with the composite collosol by means of a sol-gel dip-coating method, after ageing, drying and baking are performed, and then the substrate is loaded with platinum nano particles by means of an underpotential electrodeposition method. The rare earth element doped titanium-based mesoporous titanium dioxide platinized catalyst material prepared through the preparation methodhas the characteristics that the material is of a regular and orderly porous structure, and the pore size is continuously adjustable; high-selectivity electrolytic oxidation of glycerinum can be achieved to generate glyceraldehyde, under the conditions that the temperature is 30 DEG C and the current density is 25 mA / cm<2>, the productive rate of the glyceraldehyde obtained through electrolysis can reach up to 90.4%, and the current efficiency reaches up to 86.3%.

Description

technical field [0001] The invention relates to a titanium-based mesoporous titanium dioxide-supported platinum catalyst material doped with rare earth elements, a preparation method and application thereof. Background technique [0002] With the development of the economy, the continuous deterioration of the environment and the increasing shortage of primary energy sources such as petroleum and coal, renewable alternative energy sources such as solar energy, wind energy, water energy and biomass energy have been vigorously promoted. Among them, biodiesel has become a hot spot in the development of new energy due to its advantages such as wide source of raw materials, good safety performance, renewable, environment-friendly and can replace petrochemical diesel. [0003] Due to the vigorous development of biodiesel, the by-product glycerol produced in the production process is in excess, and glycerol can be oxidized into chemical products with high added value, such as dihydr...

Claims

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Application Information

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IPC IPC(8): C25B3/02C25B11/03C25B11/06C25B3/23
CPCC25B3/23C25B11/031C25B11/091
Inventor 秦国旭万新军王新运范影王小雨郭子娇葛雨露
Owner CHAOHU UNIV
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