A kind of molybdenum-based sulfide bimetallic catalyst and preparation method thereof
A bimetallic catalyst, sulfide technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of low selectivity and poor stability, and achieve good repeatability, The effect of large specific surface area and easy control of conditions
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] MoS 2 -ZnS / Co 9 S 8 -Al 2 o 3 Preparation of:
[0043] 1) ZnSo 4 ·7H 2 O(0.009mol), Co(NO 3 ) 2 ·6H 2 O(0.018mol), Al(NO 3 ) 3 9H 2 O (0.0045mol) was added to 300ml of deionized water, then 0.15mol of ammonium fluoride and 0.06mol of urea were added, stirred and dissolved to form a clear solution. Put the clarified solution into a polytetrafluoroethylene kettle, set the temperature at 110°C, and react for 20 hours;
[0044] 2) After the hydrothermal reaction is completed, a precipitate with a hydrotalcite structure is formed, and the precipitate is suction-filtered, and placed in a vacuum drying oven, set at a temperature of 60° C., and dried for 12 hours;
[0045] 3) Grind the dried precursor obtained in step 2) in a mortar to make it fine and uniform between 60 mesh and 80 mesh, and then place it in a muffle furnace at a set temperature of 400°C for 5 hours to carry out Roasting to form oxides of corresponding Zn, Co, Al metals;
[0046] 4) measure step...
Embodiment 2
[0050] MoS 2 -ZnS / Co 9 S 8 -Al 2 o 3 Preparation of:
[0051] 1) ZnSo 4 ·7H 2 O(0.01875mol), Co(NO 3 ) 2 ·6H 2 O(0.01875mol), Al(NO 3 ) 3 9H 2 O (0.00375mol) was added to 300ml of deionized water, then 0.15mol of ammonium fluoride and 0.06mol of urea were added, stirred and dissolved to form a clear solution. Put the clear solution into a polytetrafluoroethylene kettle, set the temperature at 110°C, and react for 20 hours.
[0052] 2) After the hydrothermal reaction is completed, a precipitate with a hydrotalcite structure is formed. The precipitate is suction-filtered and placed in a vacuum drying oven at a set temperature of 60° C. for 12 hours for drying.
[0053] 3) Grind the dried precursor obtained in step 2) in a mortar to make it fine and uniform between 60 mesh and 80 mesh, and then place it in a muffle furnace at a set temperature of 400°C for 5 hours to carry out Calcined to form oxides of corresponding Zn, Co, Al metals.
[0054] 4) measure step 3) t...
Embodiment 3
[0058] MoS 2 -ZnS / Co 9 S 8 -Al 2 o 3 Preparation of:
[0059] 1) ZnSo 4 ·7H 2 O(0.009mol), Co(NO 3 ) 2 ·6H 2 O(0.00375mol), Al(NO 3 ) 3 9H 2 O (0.01875mol) was added to 300ml of deionized water, then 0.15mol of ammonium fluoride and 0.06mol of urea were added, stirred and dissolved to form a clear solution. Put the clear solution into a polytetrafluoroethylene kettle, set the temperature at 110°C, and react for 20 hours.
[0060] 2) After the hydrothermal reaction is completed, a precipitate with a hydrotalcite structure is formed. The precipitate is suction-filtered and placed in a vacuum drying oven at a set temperature of 60° C. for 12 hours for drying.
[0061] 3) Grind the dried precursor obtained in step 2) in a mortar to make it fine and uniform between 60 mesh and 80 mesh, and then place it in a muffle furnace at a set temperature of 400°C for 5 hours to carry out Roasting, the formation of phase Zn, Co, Al should be metal oxides.
[0062] 4) measure ste...
PUM
| Property | Measurement | Unit |
|---|---|---|
| density | aaaaa | aaaaa |
| melting point | aaaaa | aaaaa |
| Mohs hardness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More