Pd triple-effect low-temperature catalyst taking nitrogen-doped titanium dioxide as carrier as well as preparation method and application thereof
The technology of titanium dioxide and catalyst is applied in the field of Pd three-effect low-temperature catalyst and its preparation, which can solve the problems of low selectivity, and achieve the effects of reducing reaction temperature, improving performance, and being beneficial to popularization and application.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] 1 wt% Pd / N-TiO 2 The preparation of catalyst, concrete steps are:
[0028] 1) In an ice-water bath, quickly add 25ml of isopropyl titanate to 100ml of ammonia solution as a precursor, stir rapidly for 6h, wash with water, dry in an oven at 80°C, and then calcinate to obtain light yellow N-TiO 2 carrier;
[0029] 2) In the resulting 1.2g N-TiO 2 Add 10 mL of PdCl with a concentration of 1.2 mg / mL to the carrier 2 Solution and 100mL deionized water, stirred for 3h, adjusted the pH value of the solution to about 10, and then slowly added NaBH with a concentration of 0.1mol / L 4 Mixed solution with NaOH to excess, so that Pd is completely reduced, stirred at room temperature for 6 hours, centrifuged, washed with deionized water until the ion concentration is lower than 10ppm, and dried in an oven at 80°C to obtain the supported Pd / N-TiO 2 catalyst.
[0030] figure 1 For the resulting Pd / N-TiO 2 Scanning electron microscope image of the catalyst. from figure 1 It can...
Embodiment 2
[0045] 0.5 wt% Pd / N-TiO 2 The preparation of catalyst, concrete steps are:
[0046] 1) In an ice-water bath, quickly add 25ml of isopropyl titanate to 100ml of ammonia solution as a precursor, stir rapidly for 6h, wash with water, dry in an oven at 80°C, and then calcinate to obtain light yellow N-TiO 2 carrier;
[0047] 2) In the resulting 1.2g N-TiO 2 Add 5 mL of 1.2 mg / mL PdCl to the carrier 2 Solution and 100mL deionized water, stirred for 3h, adjusted the pH value of the solution to about 10, and then slowly added NaBH with a concentration of 0.1mol / L 4 Mixed solution with NaOH to excess, so that Pd is completely reduced, stirred at room temperature for 6 hours, centrifuged, washed with deionized water until the ion concentration is lower than 10ppm, and dried in an oven at 80°C to obtain the supported Pd / N-TiO 2 catalyst.
Embodiment 3
[0049] 2.5 wt% Pd / N-TiO 2 The preparation of catalyst, concrete steps are:
[0050] 1) In an ice-water bath, quickly add 25ml of isopropyl titanate to 100ml of ammonia solution as a precursor, stir rapidly for 6h, wash with water, dry in an oven at 80°C, and then calcinate to obtain light yellow N-TiO 2 carrier;
[0051] 2) In the resulting 1.2g N-TiO 2 Add 25 mL of 1.2 mg / mL PdCl to the carrier 2 Solution and 100mL deionized water, stirred for 3h, adjusted the pH value of the solution to about 10, and then slowly added NaBH with a concentration of 0.1mol / L 4 Mixed solution with NaOH to excess, so that Pd is completely reduced, stirred at room temperature for 6 hours, centrifuged, washed with deionized water until the ion concentration is lower than 10ppm, and dried in an oven at 80°C to obtain the supported Pd / N-TiO 2 catalyst.
PUM
Login to view more Abstract
Description
Claims
Application Information
Login to view more - R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap