Platinum-loaded zinc tungstate nanometer material and synthesis method thereof
A technology of nanomaterials and synthesis methods, applied in the field of gas sensors, can solve the problem of low hydrogen sensitivity, and achieve the effects of simple synthesis method, elimination of the influence of environmental humidity, and small size
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0047] A method for preparing a platinum-loaded zinc tungstate nanomaterial is prepared according to the following steps:
[0048] Step 1, put 1 mmol Na 2 WO 4 ·2H 2 O, 5.44 mmol CH 3 COONa 3H 2 O and 0.46g of PVP were added to 15ml of solution, stirred until uniformly dispersed (a uniform and transparent solution was formed), wherein the solution was a deionized aqueous solution of ethylene glycol, and the volume ratio of ethylene glycol and deionized water was 14:1.
[0049] Step 2, in the solution obtained in step 1, dropwise at a constant speed 15ml of Zn(CH) with a concentration of 0.067mol / L 3 COO) 2 The aqueous solution was stirred and dispersed uniformly, and the dropwise addition was completed within 35 min.
[0050] Step 3, transfer the solution obtained in step 2 into a 60mL polytetrafluoroethylene autoclave, and from room temperature (20-25°C) to 180°C at a heating rate of 8°C / min, and react at 180°C for 12 hours , after the reaction is completed, it is natu...
Embodiment 2
[0053] A method for preparing a platinum-loaded zinc tungstate nanomaterial is prepared according to the following steps:
[0054] Step 1, put 1 mmol Na 2 WO 4 ·2H 2 O, 5.44 mmol CH 3 COONa 3H 2 O and 0.46g of PVP were added to 15ml of the solution, stirred until uniformly dispersed (a uniform and transparent solution was formed), wherein the solution was deionized water.
[0055] Step 2, in the solution obtained in step 1, dropwise at a constant speed 15ml of Zn(CH) with a concentration of 0.067mol / L 3 COO) 2 The aqueous solution was stirred and dispersed uniformly, and the dropwise addition was completed within 35 min.
[0056] Step 3, transfer the solution obtained in step 2 into a 60mL polytetrafluoroethylene autoclave, and from room temperature (20-25°C) to 180°C at a heating rate of 8°C / min, and react at 180°C for 12 hours , after the reaction is completed, it is naturally cooled to room temperature, and the mixture after the reaction is centrifuged to obtain a wh...
Embodiment 3
[0059] A method for preparing a platinum-loaded zinc tungstate nanomaterial is prepared according to the following steps:
[0060] Step 1, put 1 mmol Na 2 WO 4 ·2H 2 O, 5.44 mmol CH 3 COONa 3H 2 O and 0.46g of PVP were added to 15ml of solution, stirred until uniformly dispersed (a uniform and transparent solution was formed), wherein the solution was a deionized aqueous solution of ethylene glycol, and the volume ratio of ethylene glycol and deionized water was 14:1.
[0061] Step 2, in the solution obtained in step 1, dropwise at a constant speed 15ml of Zn(CH) with a concentration of 0.067mol / L 3 COO) 2 The aqueous solution was stirred and dispersed uniformly, and the dropwise addition was completed within 35 min.
[0062] Step 3, transfer the solution obtained in step 2 into a 60mL polytetrafluoroethylene autoclave, and from room temperature (20-25°C) to 180°C at a heating rate of 8°C / min, and react at 180°C for 12 hours , after the reaction is completed, it is natu...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More