Vanadium pentoxide with three-dimensional interconnected nano-network structure and its preparation method and application
A vanadium pentoxide and network structure technology, applied in the field of vanadium pentoxide and its preparation, can solve the problems of poor rate performance and cycle performance, slow electrochemical kinetics, poor structural stability, etc., and achieve high rate performance , Alleviate structural degradation, good rate performance
Image
Examples
Embodiment 1
[0032] A method for preparing vanadium pentoxide with a three-dimensional interconnected nano-network structure, comprising the following steps:
[0033] 1) Take 1.0 mmol of vanadium pentoxide sol and dilute it in deionized water to obtain 10 mL of solution,
[0034] 2) Add 30 mL of NH with a concentration of 0.2 mol / L to the solution formed in step 1) 4 h 2 PO 4 The solution directly forms V 2 o 5 Hydrogels.
[0035] 3) The V obtained in step 2) 2 o 5 The hydrogel was aged for 2 h at room temperature.
[0036] 4) Washing the gel obtained in step 3) with water and alcohol for 5 times, and drying the obtained product in an oven.
[0037] 5) Heating the dried product obtained in step 4) to 350° C. in a muffle furnace, keeping it warm for 2 hours, cooling it naturally to room temperature and taking it out to obtain vanadium pentoxide with a three-dimensional interconnected nano-network structure.
[0038] like figure 1As shown, the synthesis mechanism of the present inv...
Embodiment 2
[0043] A method for preparing vanadium pentoxide with a three-dimensional interconnected nano-network structure, comprising the following steps:
[0044] 1) Measure 1 mmol of vanadium pentoxide sol and dilute it in deionized water to obtain a solution.
[0045] 2) To the solution formed in step 1), add 30 mL of (NH 4 ) 2 SO 4 The solution directly forms V 2 o 5 Hydrogels.
[0046] 3) The V obtained in step 2) 2 o 5 The hydrogel was aged at room temperature for 1 h.
[0047] 4) Washing the gel obtained in step 3) with water and alcohol for 5 times, and drying the obtained product in an oven.
[0048] 5) Heating the dried product obtained in step 4) to 300° C. in a muffle furnace, keeping it warm for 3 hours, cooling it naturally to room temperature and taking it out to obtain vanadium pentoxide with a three-dimensional interconnected nano-network structure.
[0049] Taking the product of this example as an example, such as Figure 7 as shown, Figure 7 a is to add 30...
Embodiment 3
[0051] A method for preparing vanadium pentoxide with a three-dimensional interconnected nano-network structure, comprising the following steps:
[0052] 1) Measure 2 mmol of vanadium pentoxide sol and dilute it in deionized water to obtain a solution.
[0053] 2) Add 30 mL of NH with a concentration of 0.2 mol / L to the solution formed in step 1) 4 Cl solution directly forms V 2 o 5 Hydrogels.
[0054] 3) The V obtained in step 2) 2 o 5 Aging at room temperature for 5h.
[0055] 4) Washing the gel obtained in step 3) with water and alcohol for 5 times, and drying the obtained product in an oven.
[0056] 5) Heating the dried product obtained in step 4) to 350° C. in a muffle furnace, keeping it warm for 3 hours, cooling it naturally to room temperature and taking it out to obtain vanadium pentoxide with a three-dimensional interconnected nano-network structure.
[0057] Taking the product of this example as an example, such as Figure 7 as shown, Figure 7 b is to add...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- IPC
- C01G31/02; H01M4/48; B82Y30/00; B82Y40/00
- CPC
- Y02E60/10
- Inventors
- 麦立强; 赵露滋