Nickel-molybdenum bimetallic oxide catalyst, preparation method and application thereof
A bimetallic oxide and catalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., to achieve the effects of low cost, simple operation method and short cycle
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0043] Ordered mesoporous bimetallic nickel-molybdenum oxides were prepared according to the following steps:
[0044] Weigh 8g of P123 into a 500ml beaker, then add 60ml of deionized water, 240ml of 2mol / L hydrochloric acid, and stir at 40°C for 4h. 17gTEOS was slowly added dropwise and continued to stir vigorously at 40°C for 24h. The obtained white turbid liquid was transferred into a high-pressure reaction kettle with a polytetrafluoroethylene inner sleeve, and after being refined at 100°C for 48 hours, it was cooled, washed, and dried. The obtained white solid was calcined at 550° C. for 6 hours with a heating rate of 2° C. / min, and the obtained solid was SBA-15 mesoporous molecular sieve. Small-angle X-ray (SAXRD) and N 2 Adsorption-desorption isotherm characterization, the spectrum is as follows figure 1 and figure 2 shown by figure 1 and figure 2 It can be seen that the prepared SBA-15 has a regular two-dimensional hexagonal mesoporous channel structure, and it...
Embodiment 2
[0049] The synthesis steps of the hard template SBA-15 are the same as in Example 1.
[0050] The synthesis steps of the ordered mesoporous nickel oxide are the same as in Example 1.
[0051] Weigh a certain amount of molybdenum pentachloride and dissolve it in ethanol, stir to obtain a homogeneous solution, then add the prepared mesoporous nickel oxide into the above solution (Ni:Mo molar ratio is 3:2), dry at 40°C and place The ordered mesoporous nickel-molybdenum oxide was obtained by raising the temperature to 400° C. at a rate of 1° C. / min in a muffle furnace and keeping the temperature at this temperature for 2 hours. Its specific surface area is 61m 2 / g. The prepared ordered mesoporous nickel-molybdenum oxide was characterized by TEM and SAXRD, and its TEM photo and SAXRD spectrum are as follows Figure 7 and Figure 8 shown.
[0052] The evaluation of the propane oxidative dehydrogenation performance of the ordered mesoporous nickel-molybdenum oxide is the same a...
Embodiment 3
[0054] The synthesis steps of the hard template SBA-15 are the same as in Example 1.
[0055] The synthesis steps of the ordered mesoporous nickel oxide are the same as in Example 1.
[0056] Weigh a certain amount of molybdenum pentachloride and dissolve it in ethanol, stir to obtain a homogeneous solution, then add the prepared mesoporous nickel oxide into the above solution (Ni:Mo molar ratio is 1:0.5), dry at 40°C and place The ordered mesoporous nickel-molybdenum oxide was obtained by raising the temperature to 400° C. at a rate of 1° C. / min in a muffle furnace and keeping the temperature at this temperature for 2 hours. Its specific surface area is 70m 2 / g. The prepared ordered mesoporous nickel molybdenum oxide 2 Adsorption-desorption and XRD characterization, its N 2 The adsorption-desorption diagram and XRD spectrum are as follows Figure 9 and Figure 10 shown.
[0057] The evaluation of the propane oxidative dehydrogenation performance of the ordered mesopor...
PUM
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More