Ultra-small VS4/Super P composite nano-powder as well as preparation method and application thereof
A technology of nanocomposite powder and ph value, applied in the direction of non-aqueous electrolyte battery electrodes, electrical components, battery electrodes, etc., can solve the problems of small specific surface area, high cost, etc., achieve large specific surface area, shorten charge transfer, and yield high effect
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Embodiment 1
[0038] Step 1: Add 1.0g of sodium metavanadate, 3.6g of thioacetamide and 0.3g of Super P into 60ml of deionized water at the same time, stir magnetically at 800r / min for 65min to obtain a semi-clear solution A;
[0039] Step 2: Then add 1.0mol / L ammonia solution dropwise to solution A under magnetic stirring, control the drip rate of ammonia solution to 0.03ml / min, after adding one drop of ammonia solution, stir until the pH value of the solution is stable , and then drop the next drop of ammonia solution until the pH value of the reaction solution is adjusted to 10 to obtain solution B;
[0040] Step 3: Pour the solution B into the reaction liner at a filling ratio of 60% and seal it, install the liner in the outer kettle and fix it, then place it in a homogeneous reactor, and heat the reaction kettle from room temperature to 8r / min. 180℃ hydrothermal reaction for 24h;
[0041] Step 4: After the hydrothermal reaction is completed, the reaction kettle is naturally cooled to ...
Embodiment 2
[0048] Step 1: Add 0.8g of sodium metavanadate, 3.5g of thioacetamide and 0.2g of Super P into 58ml of deionized water at the same time, stir magnetically at 1000r / min for 55min to obtain a semi-clear solution A;
[0049] Step 2: Then add 1.15mol / L ammonia solution dropwise to solution A under magnetic stirring, control the drip rate of ammonia solution to 0.04ml / min, after adding one drop of ammonia solution, stir until the pH value of the solution is stable , and then drop the next drop of ammonia solution until the pH value of the reaction solution is adjusted to 9.9 to obtain solution B;
[0050] Step 3: Pour solution B into the reaction liner at a filling ratio of 55% and seal it, install the liner in the outer kettle and fix it in a homogeneous reactor, and heat the reaction kettle from room temperature to 178℃ hydrothermal reaction for 24.5h;
[0051] Step 4: After the hydrothermal reaction is completed, cool the reaction vessel to room temperature naturally. After fiv...
Embodiment 3
[0053] Step 1: Add 1.1g of sodium metavanadate, 3.7g of thioacetamide and 0.4g of Super P into 63ml of deionized water at the same time, stir magnetically at 900r / min for 60min to obtain a semi-clear solution A;
[0054] Step 2: Then add 1.1mol / L ammonia solution dropwise to solution A under magnetic stirring, control the drip rate of ammonia solution to 0.05ml / min, after adding one drop of ammonia solution, stir until the pH value of the solution is stable , and then drop the next drop of ammonia solution until the pH value of the reaction solution is adjusted to 10.1 to obtain solution B;
[0055] Step 3: Pour the solution B into the reaction liner at a filling ratio of 58% and seal it, place the liner in the outer kettle and fix it in a homogeneous reactor, and heat the reaction kettle from room temperature to 100r / min. 185℃ hydrothermal reaction for 23.5h;
[0056] Step 4: After the hydrothermal reaction is completed, the reaction kettle is naturally cooled to room temper...
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