CoP@carbon nanotube composite material and preparation and application thereof
A technology of carbon nanotubes and composite materials, applied in the fields of carbon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of uneven lithium deposition and uncontrollable growth of lithium dendrites.
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Embodiment 1
[0048] The original carbon nanotubes were dispersed in nitric acid solution (diluted to 30% with deionized water) for pretreatment, magnetically stirred in a water bath (80°C) (6h), and the product was collected by suction filtration and dried in a vacuum oven at 80°C for 12h. 0.07 g of pretreated carbon nanotubes and 0.3 g of cetyltrimethylammonium bromide (CTAB) were added into 50 ml of methanol solution, and ultrasonically treated for 30 min to obtain a uniformly dispersed suspension of carbon nanotubes. Then add 0.35g Co(NO 3 ) 2 ·6H 2 O, stirred at room temperature for another 30 min. Then, 50ml of 2-methylimidazole methanol solution (containing 1.53g 2-methylimidazole) was slowly poured into the solution containing carbon nanotubes and Co(NO 3 ) 2 ·6H 2 O solution, continue magnetic stirring for 30min. After standing at room temperature for 24 hours, the precipitate was collected by centrifugation, washed with ethanol several times, and finally dried in a vacuum ov...
Embodiment 2
[0054] The original carbon nanotubes were dispersed in nitric acid solution (diluted to 45% with deionized water) for pretreatment, magnetically stirred in a water bath (80°C) (6h), and the product was collected by suction filtration and dried in a vacuum oven at 80°C for 12h. 0.07 g of pretreated carbon nanotubes and 0.3 g of cetyltrimethylammonium bromide (CTAB) were added into 50 ml of methanol solution, and ultrasonically treated for 30 min to obtain a uniformly dispersed suspension of carbon nanotubes. Then add 0.35g Co(NO 3 ) 2 ·6H 2 O, stirred at room temperature for another 30 min. Then, 50ml of 2-methylimidazole methanol solution (containing 1.53g 2-methylimidazole) was slowly poured into the solution containing carbon nanotubes and Co(NO 3 ) 2 ·6H 2 O solution, continue magnetic stirring for 30min. After standing at room temperature for 24 hours, the precipitate was collected by centrifugation, washed with ethanol several times, and finally dried in a vacuum ov...
Embodiment 3
[0059] Nitric acid solution (diluted to 20% with water) was used to magnetically stir the original carbon nanotubes in a water bath (80°C) (6h), and the product was collected by suction filtration and dried in a vacuum oven at 80°C for 12h. 0.07 g of pretreated carbon nanotubes and 0.3 g of cetyltrimethylammonium bromide (CTAB) were added into 50 ml of methanol solution, and ultrasonically treated for 30 min to obtain a uniformly dispersed suspension of carbon nanotubes. Then add 0.35g Co(NO 3 ) 2 ·6H 2 O, stirred at room temperature for another 30 min. Then, 50ml of 2-methylimidazole methanol solution (containing 1.53g 2-methylimidazole) was slowly poured into the solution containing carbon nanotubes and Co(NO 3 ) 2 ·6H 2 O solution, continue magnetic stirring for 30min. After standing at room temperature for 24 hours, the precipitate was collected by centrifugation, washed with ethanol several times, and finally dried in a vacuum oven at 80°C for 12 hours, and recorded...
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