A high-performance porous sn 3 o 4 Carbon-based composite material and its preparation method and application
A carbon composite material and composite material technology, applied in the field of high-performance porous Sn3O4-based carbon composite materials and their preparation, can solve problems such as poor cycle performance and rate performance, large particle size, and restricted development, and achieve excellent charge and discharge performance, Improve the effect of fast decay and high yield
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Embodiment 1
[0031] Disperse 0.5g of P@F-127 in 100mL of deionized water, stir ultrasonically until it is completely dissolved, then dissolve 0.5g of silica gel (40nm) in it, and stir ultrasonically for 20 minutes to completely dissolve; then add 0.5 g of commercial SnO (5-50 μm), sonicated for 1 h to make it uniformly dispersed, then added dropwise 0.4 mL of aniline monomer, stirred ultrasonically to disperse evenly, transferred the above solution to a round-bottomed flask, and stirred in an ice bath for 20 Minutes, add 0.5mL of concentrated hydrochloric acid, and continue to stir in an ice-water bath. Another 10mL containing 1g (NH 4 ) 2 S 2 o 8 aqueous solution, which was added to the above mixed solution. Keeping the ice bath condition, the reaction was stirred for 12h. After the reaction is finished, filter with suction, wash three times, and dry in vacuum to obtain a composite material. Put the composite material in Ar / H 2 High temperature treatment at 500°C for 6h under mixed...
Embodiment 2
[0034] Disperse 0.3g of P@F-127 in 100mL of deionized water, stir ultrasonically until it is completely dissolved, then dissolve 1g of silica gel (5nm) in it, and stir ultrasonically for 20 minutes to completely dissolve; then add 0.6g The commercial SnO (10-30μm), ultrasonic 1h, to make it dispersed evenly, then dropwise add 0.4 mL of aniline monomer, ultrasonically stirred to disperse evenly, the above solution was transferred to a round bottom flask, stirred in ice bath for 20 minutes , add 0.5mL of concentrated hydrochloric acid, and continue to stir in an ice-water bath. Another 10mL containing 1.2g (NH 4 ) 2 S 2 o 8 aqueous solution, which was added to the above mixed solution. Keeping the ice bath condition, the reaction was stirred for 12h. After the reaction is finished, filter with suction, wash three times, and dry in vacuum to obtain a composite material. Put the composite material in Ar / H 2High temperature treatment at 600°C for 3h under mixed gas. Treat w...
Embodiment 3
[0038] Take 0.1g of P@F-127 and disperse it in 100mL of deionized water, stir it until it is completely dissolved, then take 0.5g of silica gel (40nm) to dissolve it, and stir it for 20 minutes to make it completely dissolved; then add 0.1 g of commercial SnO (5-50 μm), sonicated for 1 h to make it uniformly dispersed, then added dropwise 0.4 mL of aniline monomer, stirred ultrasonically to disperse evenly, transferred the above solution to a round-bottomed flask, and stirred in an ice bath for 20 Minutes, add 0.1mL of concentrated hydrochloric acid, and continue to stir in an ice-water bath. Another 10mL containing 1g (NH 4 ) 2 S 2 o 8 aqueous solution, which was added to the above mixed solution. Keeping the ice bath condition, the reaction was stirred for 12h. After the reaction is finished, filter with suction, wash three times, and dry in vacuum to obtain a composite material. Put the composite material in Ar / H 2 High temperature treatment at 700°C for 0.5h under m...
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