Microbial electrode and its preparation method and microbial fuel cell
A microbial electrode and fuel cell technology, applied in biochemical fuel cells, battery electrodes, circuits, etc., can solve the problems of low electron transfer efficiency and poor electrode biocompatibility
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[0031] According to a particular embodiment of the present invention, the co-cultured manner is: immersing the electrode material in a culture system containing the polymer and the microorganism, thereby forming a polymer and microbial complex on the surface of the electrode material. Biofilm.
[0032] Preferably, in the culture system, the polymer has a concentration of from 10 to 100 μm, wherein the concentration of the polymer is monitors.
[0033] More preferably, in the culture system, the polymer has a concentration of from 20 to 50 μm, and in the case, in the study, the concentration of the polymer is controlled in this range, and the microorganism can be further improved to form a biological surface of the electrode surface. The ability of the membrane, thereby increasing electron transfer efficiency, improves the production of electrical properties of microbial fuel cells.
[0034] In the present invention, the suction of the microorganism is used to represent the concent...
preparation example 1
[0057] The preparation of PMNT, the reaction process is as follows:
[0058]
[0059] (1) 3-methyl-4- (3- (N, N-Diethylamino) propoxy) thiophene synthesis: under nitrogen protection, 15 ml of no water 1, 2-dimethyl was added in 0 ° C Chibethylene ether (DME), N, N-diethylene-1-propanol (524 mg, 4.0 mmol), sodium hydride (96 mg, 4.0 mmol), then lift the reaction to room temperature (25 ° C), reaction for 20 min After the addition of 3-bromo-4-methylthiophene (531 mg, 3 mmol) DME solution, copper iodide (287 mg, 1.5 mmol), rising 105 ° C, reaction 12h. The reaction liquid was cooled to room temperature, diluted with dichloromethane, filtered, washed three times, and the organic phase was dried over anhydrous magnesium sulfate, concentrated to be crude, chromatography with silica gel, and eluent as CH 2 CL 2 / CH 3 OH (30: 1) was purified, and the product was dried (328 mg, yield of 48%).
[0060] Nuclear magnetic data is: 1H NMR (400MHz, CDCL 3 : δ = 6.80 (S, 1H), 6.14 (S, 1H), 3....
preparation example 2
[0066] The preparation of PT, the reaction process is as follows:
[0067]
[0068] (1) 3- (2- (6-bromohexyoxy) ethyl) thiophene synthesis: 2- (3-thiophene) ethanol (663 μl, 6 mmol), sodium hydride (206 mg, 6 mmol) in a 100ml single-mouth bottle 50 ml of anhydrous DMF (dimethylformamide), under a nitrogen atmosphere, the reaction solution was stirred at room temperature (25 ° C) for 30min; then 1,6-dibromohexane (4.6 mL, 10 mmol) continued to stir overnight After the reaction was stopped, the water was poured into water, extracted with dichloromethane, combined with the organic phase, washed with distilled water, dried over anhydrous sulfate, concentrated; crude product silica gel column chromatography separated purification, the unfolding agent as petroleum ether / ethyl acetate (40 / 1, v / v) gave a white powder (0.54 g, 31%).
[0069] Nuclear magnetic data is: 1H NMR (400MHz, CDCL 3 7.37 (m, 1H), 7.15-7.10 (m, 2H), 3.76 (T, 2H), 3.53 (T, 2H), 3.04 (T, 2H), 1.99 (M, 2H) ), 1.72...
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