A carbon fiber composite material loaded with CO nanoparticles and its preparation method and use
A composite material and nanoparticle technology, applied in the field of material chemistry, can solve the problems of increasing waste liquid recycling cost, unrecoverable environment, large amount of waste liquid, etc., and achieve the effects of good electrochemical performance, coulombic efficiency maintenance, and not easy to pulverize
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Embodiment 1
[0018] Weigh 5g silkworm cocoons, place them in 0.5g / L sodium carbonate aqueous solution, heat and reflux for 50min to degumming, then filter, wash 3 times with distilled water, and then dry to obtain silk fibroin fibers; soak 2g silk fibroin fibers in a concentration of 2.0 g / L cobalt oxalate and 3.0 g / L glucose mixed aqueous solution, stirred at room temperature for 30min, then transferred to a stainless steel reactor, reacted at 120°C for 48h, naturally cooled to room temperature, filtered, and dried at 110°C to obtain a loaded Co Nanoparticle-based carbon fiber composites. The obtained carbon fiber composite material product is carried out powder X-ray diffraction (XRD) test, carries out composition structure analysis ( figure 1 ); Observing its morphology with a scanning electron microscope (SEM), the results show that the surface of the one-dimensional carbon fiber composite material supports cobalt nanoparticles ( figure 2 ); the obtained carbon fiber composite materi...
Embodiment 2
[0020] Weigh 5g silkworm cocoons, put them in 1.0g / L sodium carbonate aqueous solution, heat and reflux for 50min to degumming, then filter, wash 3 times with distilled water, and then dry to obtain silk fibroin fibers; soak 3g silk fibroin fibers in a concentration of 5.0 g / L cobalt oxalate and 3.0 g / L glucose mixed aqueous solution, stirred at room temperature for 60min, then transferred to a stainless steel reactor, reacted at 140°C for 24h, naturally cooled to room temperature, filtered, and dried at 110°C to obtain a loaded Co Nanoparticle-based carbon fiber composites. Use powder X-ray diffraction and scanning electron microscopy to test the composition, structure and morphology of materials; use blue electric system to test the electrochemical properties of materials.
Embodiment 3
[0022] Weigh 5g silkworm cocoons, put them in 0.8g / L sodium carbonate aqueous solution, heat and reflux for 50min to degumming, then filter, wash 3 times with distilled water, and then dry to obtain silk fibroin fibers; soak 2g silk fibroin fibers in a concentration of 3.5 g / L cobalt oxalate and 3.0 g / L glucose mixed aqueous solution, stirred at room temperature for 45min, then transferred to a stainless steel reactor, reacted at 130°C for 36h, naturally cooled to room temperature, filtered, and dried at 110°C to obtain a loaded Co Nanoparticle-based carbon fiber composites. Use powder X-ray diffraction and scanning electron microscopy to test the composition, structure and morphology of materials; use blue electric system to test the electrochemical properties of materials.
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