A carbon-based bioanode, its preparation method and microbial fuel cell
A bioanode and fuel cell technology, applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve the problems of less attachment sites and limited electrochemical activity on the surface of electrode materials, and achieve cost-effective, good biocompatibility, The effect of good conductivity
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[0031] Example 1
[0032] A preparation method of carbon-based biological anode, comprising the following steps:
[0033] (1) rubbing and cleaning the sisal fibers and cut them into 1-2cm long sections, and then use the hydrochloric acid solution with a concentration of 10wt% to acidify the sisal fiber sections after the shearing, and then acidify the sisal fibers after the acidification treatment. Hemp fiber is washed, dried and set aside;
[0034] (2) Mix the acidified sisal fiber with a certain quality of ferric oxide and then grind it with a ball mill for 1 hour, wherein the quality of ferric oxide accounts for 15wt% of the quality of the sisal fiber; After washing and drying, it was put into a tube furnace for carbonization under an inert atmosphere for 2 hours, the carbonization temperature was 900 °C, and the heating rate was 3 °C / min. After the furnace temperature was cooled to room temperature, it was passed through a 200-mesh sieve to obtain a fibrous carbon materia...
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[0043] Example 2
[0044] A preparation method of carbon-based biological anode, comprising the following steps:
[0045] (1) rubbing and cleaning the sisal fibers and cutting them into 1-2cm long sections, then using the hydrochloric acid solution with a concentration of 5wt% to acidify the sisal fiber sections after the shearing, and then acidifying the sisal fibers after the acidification treatment. Hemp fiber is washed, dried, and ready for use;
[0046] (2) Mix the acidified sisal fiber with a certain quality of ferrous oxide and then grind it with a ball mill for 1 hour, in which the mass of ferrous oxide accounts for 18wt% of the quality of the sisal fiber; the mixture after grinding is washed and dried After treatment, it was put into a tube furnace for carbonization under an inert atmosphere for 2 hours, the carbonization temperature was 1200 °C, and the heating rate was 4 °C / min. After the furnace temperature was cooled to room temperature, it was passed through a 2...
Example Embodiment
[0055] Example 3
[0056] A preparation method of carbon-based biological anode, comprising the following steps:
[0057] (1) rubbing and cleaning the sisal fibers and cutting them into 1-2cm long sections, then using the hydrochloric acid solution with a concentration of 5wt% to acidify the sisal fiber sections after the shearing, and then acidifying the sisal fibers after the acidification treatment. Hemp fiber is washed, dried, and ready for use;
[0058] (2) Mix the acidified sisal fiber with a certain quality of ferric oxide and then grind it with a ball mill for 2 hours, wherein the quality of the ferric oxide accounts for 18wt% of the quality of the sisal fiber; After washing and drying, it was placed in a tube furnace for carbonization under an inert atmosphere for 2.5 hours, the carbonization temperature was 700 °C, and the heating rate was 3 °C / min. After the furnace temperature was cooled to room temperature, it was passed through a 200-mesh sieve to obtain fibrous...
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