Preparation method of vanadium tetrasulfide@Super P composite powder and application thereof
A composite powder, vanadium tetrasulfide technology, used in chemical instruments and methods, electrochemical generators, chemical/physical processes, etc., can solve the problem that the high performance of VS4 cannot be well exerted, the appearance is irregular and uniform, and the distribution Sparse and other problems, to achieve the effect of simple synthesis path, cheap and easy cost, and low synthesis temperature
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Embodiment 1
[0042] Step 1: Weigh 50 mg of Super P and add it to 60 ml of deionized water, and ultrasonicate for 2 hours with an ultrasonic power of 400-600 W to obtain uniformly dispersed black solution A.
[0043] Step 2: Weigh 1.0 g of sodium metavanadate and 3.6 g of thioacetamide and add them to solution A at the same time, and stir magnetically for 50 minutes at a speed of 400-600 r / min to obtain solution B.
[0044] Step 3: Pour solution B into the reaction liner and seal it, then install the liner in the outer kettle and fix it, then place it in a homogeneous reactor with a filling ratio of 59%, and then at a speed of 10r / min, Reaction at 180°C for 24h.
[0045] Step 4: After the hydrothermal reaction is completed, the reaction vessel is naturally cooled to room temperature, and then the cooled product after the reaction is taken out, and the product is collected after three times of alternate washing with water and three times of alcohol.
[0046] Step 5: Place the collected prod...
Embodiment 2
[0048] Step 1: Weigh 48mg of Super P and add it to 58ml of deionized water, sonicate for 1.5h with a power of 400W to obtain a uniformly dispersed black solution A;
[0049] Step 2: Weigh 0.9g of sodium metavanadate and 3.5g of thioacetamide and add them to solution A at the same time, stir magnetically for 30min at a speed of 400r / min to obtain solution B;
[0050] Step 3: Pour solution B into the reaction liner and seal it, then install the liner in the outer kettle and fix it, then place it in a homogeneous reactor with a filling ratio of 58%, and then at a speed of 5r / min, React at 175°C for 23h;
[0051] Step 4: After the hydrothermal reaction is completed, the reaction kettle is naturally cooled to room temperature, and then the cooled product after the reaction is taken out, and the product is collected after being alternately washed with water and alcohol twice;
[0052] Step 5: Place the collected product in the cold well of a freeze dryer for freezing, the freezing ...
Embodiment 3
[0054] Step 1: Weigh 52mg of Super P and add it to 62ml of deionized water, sonicate for 2.5h with a power of 600W to obtain uniformly dispersed black solution A;
[0055] Step 2: Weigh 1.1g of sodium metavanadate and 3.7g of thioacetamide and add them to solution A at the same time, stir magnetically for 60min at a speed of 600r / min to obtain solution B;
[0056] Step 3: Pour solution B into the reaction liner and seal it, then install the liner in the outer kettle and fix it, then place it in a homogeneous reactor with a filling ratio of 62%, and then at a speed of 10r / min, React at 185°C for 25h;
[0057] Step 4: After the hydrothermal reaction is completed, the reaction kettle is naturally cooled to room temperature, and then the product cooled after the reaction is taken out, and the product is collected after being washed alternately with water and alcohol for 5 times;
[0058] Step 5: Place the collected product in the cold well of a freeze dryer for freezing, the free...
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