Preparation method and application of magnetic nickel-palladium bimetallic supported titanium dioxide nanomaterial
A technology of titanium dioxide and nanomaterials, which is applied in the field of preparation of magnetic nickel-palladium bimetallic supported titanium dioxide nanomaterials, can solve the problems of weakening catalytic ability and active site masking, and achieve excellent catalytic performance, developed pore structure and high efficiency.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0034] Weigh 0.6g of amorphous titanium dioxide and disperse it in 90mL of 1.3mol / L ethylenediamine solution, stir it evenly, transfer it to a polytetrafluoroethylene autoclave, and react at 150°C for 12h to obtain titanate; The prepared titanate was added with 600mL of 10g / L Ni 2+ (Ni 2+ from NiCl 2 ·6H 2 O) in an aqueous solution, ion exchanged at 30°C for 12h, then centrifuged at 8000rpm for 3min, washed with deionized water, dried at 60°C for 12h, then placed in a muffle furnace, in H 2 calcined at 500 °C for 2 h in a reducing atmosphere of / Ar mixed gas, and the heating rate of the muffle furnace was set to 2.5 °C / min to obtain a nickel-supported titanium dioxide material with magnetic properties; 0.15 g of nickel-supported titanium dioxide material was weighed and added to 5 mL of 6 g / L PdCl 2 In the solution, placed in a constant temperature water bath at 30°C for 10h immersion reduction, then centrifuged at 8000rpm for 3min, washed with deionized water, and vacuum ...
Embodiment 2
[0042] Weigh 0.6 g of amorphous titanium dioxide and disperse it in 90 mL of 1.3 mol / L ammonia solution, stir it evenly, transfer it to a polytetrafluoroethylene autoclave, and react at 150 ° C for 12 h to obtain titanate; the prepared of titanate by adding 600mL of 20g / L Ni 2+ (Ni 2+ from NiC 2 O 4 ·4H 2 O) in aqueous solution, ion-exchanged at 30°C for 12h, then centrifuged at 6000rpm for 3min, washed with deionized water, dried at 60°C for 12h, then placed in a muffle furnace under H 2 calcined at 500 °C for 2 h in a reducing atmosphere of / Ar mixed gas, and the heating rate of the muffle furnace was set to 2.5 °C / min to obtain a magnetic nickel-supported titania material; weigh 0.10 g of nickel-supported titania material and add 5 mL of 4 g / L PdCl 2 In the solution, it was then placed in a constant temperature water bath at 30 °C for immersion and reduction for 10 h, then centrifuged at 5000 rpm for 3 min, washed with deionized water, and vacuum-dried at 60 °C for 12 h...
Embodiment 3
[0044] Weigh 0.5 g of amorphous titanium dioxide and disperse it in 90 mL of 1.3 mol / L triethylamine solution, stir it evenly, transfer it to a polytetrafluoroethylene autoclave, and react at 150 ° C for 12 h to obtain titanate; The prepared titanate was added with 600mL of 5g / L Ni 2+ (Ni 2+ From Ni (NO 3 ) 2 ·6H 2 O) in an aqueous solution, ion exchanged at 30°C for 12h, then centrifuged at 8000rpm for 3min, washed with deionized water, dried at 60°C for 12h, then placed in a muffle furnace, in H 2 calcined at 500 °C for 2 h under the reducing atmosphere of / Ar mixed gas, and the heating rate of the muffle furnace was set to 2.5 °C / min to obtain a magnetic nickel-supported titania material; weigh 0.20 g of nickel-supported titania material and add 5 mL of 8 g / L PdCl 2 In the solution, it was then placed in a constant temperature water bath at 30 °C for immersion and reduction for 10 h, centrifuged at 6000 rpm for 3 min, washed with deionized water, and vacuum dried at 60 ...
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More