A kind of three-dimensional network carbon nanomaterial and its application
A technology of carbon nanomaterials and three-dimensional networks, applied in the field of electrochemistry, can solve the problems of battery materials without pure collagen materials, achieve excellent electrochemical performance, increase stability, and improve stability
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Embodiment 1
[0047] (1) The pigskin collagen solution was prepared by enzymatic hydrolysis. 10 mL of collagen solution with a concentration of 3.5 mg / g was placed in a quartz glass container, and irradiated for 2 h in an ultraviolet weather-resistant box with a wavelength of 312 nm, and the sample was 40 cm away from the light source. The collagen solution after UV irradiation was lyophilized in a freeze dryer for 48 hours, and the solvent was completely removed to obtain a dry fibrous collagen sample.
[0048] (2) The collagen fiber sample obtained by freeze-drying was carbonized under the protection of argon gas in a tube furnace, and the gas flow rate was 1 L / min. First, the tube furnace was slowly heated to 350°C at a rate of 2°C / min, and kept at 350°C for 1 h. Then, the furnace temperature was slowly raised to 1000°C at a heating rate of 2°C / min, and kept at 1000°C for 1 h to carbonize all the collagen fibers. The three-dimensional network carbon nanomaterial prepared in this example...
Embodiment 2
[0054] (1) The pigskin collagen solution was prepared by enzymatic hydrolysis. 10 mL of collagen solution with a concentration of 1 mg / g was placed in a quartz glass container, and irradiated with an ultraviolet weather-resistant box with a wavelength of 310 nm for 0.5 h, and the sample was 25 cm away from the light source. The collagen solution after ultraviolet irradiation was freeze-dried in a freeze dryer for 30 hours, and the solvent was completely removed to obtain a dry fibrous collagen sample.
[0055] (2) The collagen fiber sample obtained by freeze-drying was carbonized under the protection of argon gas in a tube furnace, and the gas flow rate was 0.5 L / min. First, the tube furnace was slowly heated to 250°C at a rate of 1°C / min, and kept at 250°C for 1 h. Then, the furnace temperature was slowly raised to 800°C at a heating rate of 1°C / min, and kept at 800°C for 1 h to carbonize all the collagen fibers. The three-dimensional network carbon nanomaterial prepared in ...
Embodiment 3
[0057] (1) The pigskin collagen solution was prepared by enzymatic hydrolysis, and 10 mL of collagen solution with a concentration of 2.5 mg / g was placed in a quartz glass container, and irradiated with an ultraviolet weather-resistant box with a wavelength of 320 nm for 5 h, and the sample was 50 cm away from the light source. The collagen solution after ultraviolet irradiation was freeze-dried in a freeze dryer for 50 hours, and the solvent was completely removed to obtain a dry fibrous collagen sample.
[0058] (2) The collagen fiber sample obtained by freeze drying was carbonized under the protection of argon gas in a tube furnace, and the gas flow rate was 3 L / min. First, the tube furnace was slowly heated to 280°C at a speed of 5°C / min, and kept at 280°C for 1.5 h. Then, the furnace temperature was slowly raised to 900°C at a heating rate of 5°C / min, and kept at 900°C for 3 h to carbonize all the collagen fibers. The three-dimensional network carbon nanomaterial prepare...
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