Synthesis method and application of (Co0. 55Mn0. 45) 2P2O7/NG composite electrode material
A composite electrode and mixed solution technology, which is applied in the manufacture of hybrid capacitor electrodes, hybrid/electric double layer capacitors, etc., can solve problems such as energy consumption and environmental pollution, large particle size of pyrophosphate, and difficulty in controlling the shape, and achieve a solution Non-uniformity, high energy density, short synthesis time effect
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Embodiment 1
[0032] (1) Ultrasonically disperse 0.490g manganese acetate tetrahydrate (0.002M) and 0.238g cobalt chloride hexahydrate (0.001M) in 20mL ethylene glycol solution, and stir continuously at room temperature to form a bimetallic precursor solution A ;
[0033] (2) Add 1 mL of phytic acid to the cobalt-manganese prerequisite solution A, and obtain a mixed solution B after ultrasonic stirring;
[0034] (3) Add 0.601g of urea (0.01M) to the mixed solution B, and obtain the mixture C after ultrasonic stirring;
[0035] (4) Transfer the mixture C to an oven with a power of 300W, and heat it intermittently for 20s each time until the solution becomes a paste to obtain the product D;
[0036] (5) Cool the product D to room temperature, and then vacuum-dry it at 60°C for 12 hours to obtain a honeycomb porous (Co 0.55 mn 0.45 ) 2 P 2 o 7 / NG composite electrode material.
[0037] (6) Use X-ray diffractometer (XRD), scanning electron microscope (SEM), X-ray photoelectron spectrosco...
Embodiment 2
[0042] (1) Ultrasonically disperse 0.735g of manganese acetate tetrahydrate (0.003M) and 0.238g of cobalt chloride hexahydrate (0.001M) in 30mL of ethylene glycol solution, and stir continuously at room temperature to form a bimetallic precursor Solution A;
[0043] (2) Add 2 mL of phytic acid to cobalt-manganese precursor solution A, and obtain mixed solution B after ultrasonic stirring;
[0044] (3) Add 0.601g of urea (0.01M) to the mixed solution B, and obtain the mixture C after ultrasonic stirring;
[0045] (4) Transfer the mixture C to an oven with a power of 400W, and heat it intermittently for 30s each time until the solution becomes a paste to obtain the product D;
[0046] (5) Cool the product D to room temperature, and then vacuum-dry it at 70°C for 24 hours to obtain a honeycomb porous (Co 0.55 mn 0.45 ) 2 P 2 o 7 / NG composite electrode material.
[0047] (6) Use X-ray diffractometer (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscop...
Embodiment 3
[0051] (1) Ultrasonic disperse 0.981g of manganese acetate tetrahydrate (0.004M) and 0.476g of cobalt chloride hexahydrate (0.002M) in 40mL of ethylene glycol solution, and stir continuously at room temperature to obtain bimetallic precursor solution A ;
[0052] (2) Add 2 mL of phytic acid to cobalt-manganese precursor solution A, and obtain mixed solution B after ultrasonic stirring;
[0053] (3) Add 0.601g of urea (0.01M) to the mixed solution B, and obtain the mixture C after ultrasonic stirring;
[0054] (4) Transfer the mixture C to an oven with a power of 500W, and heat it intermittently for 20-30s each time until the solution becomes a paste to obtain the product D;
[0055] (5) Cool the product D to room temperature, and then vacuum-dry it at 70°C for 12 hours to obtain a honeycomb porous (Co 0.55 mn 0.45 ) 2 P 2 o 7 / NG composite electrode material.
[0056] (6) Use X-ray diffractometer (XRD), scanning electron microscope (SEM), X-ray photoelectron spectroscop...
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