本文選題：微生物燃料電池 + 陽極修飾��； 參考：《微生物學(xué)通報》2017年09期

【摘要】：【目的】利用石墨烯與多壁碳納米管復(fù)合材料協(xié)同刃天青修飾微生物燃料電池(Microbial fuel cell,MFC)陽極,提高MFC的運行性能�！痉椒ā恳蕴疾紴榛�,采用滴涂法分別制備了刃天青/碳布(R/CC)、刃天青+石墨烯/碳布(R+GNS/CC)、刃天青+多壁碳納米管/碳布(R+MWCNT/CC)、刃天青+石墨烯+多壁碳納米管/碳布(R+GNS+MWCNT/CC)四種陽極材料�！窘Y(jié)果】在降解高氯酸鹽的過程中,與刃天青/碳布(最高輸出電壓54 m V)相比,刃天青+石墨烯/碳布、刃天青+多壁碳納米管/碳布和刃天青+石墨烯+多壁碳納米管/碳布陽極MFC最高輸出電壓分別為87、145、275 m V,分別提高了61.11%、168.52%、409.26%;高氯酸鹽的還原速率也分別提高了59.1%、89.7%、147.3%。4種陽極的電化學(xué)交流阻抗(EIS)和塔菲爾(Tafel)測試發(fā)現(xiàn),與刃天青/碳布陽極相比,刃天青+石墨烯/碳布、刃天青+多壁碳納米管/碳布陽極活化內(nèi)阻減小,電極反應(yīng)速率提高,但刃天青+石墨烯+多壁碳納米管/碳布陽極的活化內(nèi)阻更小,電極反應(yīng)速率更快,同時4種陽極附著微生物胞外聚合物(EPS)分析表明,修飾過的陽極附著微生物數(shù)量增加,多糖減少,R+GNS+MWCNT/CC陽極變化最大,更有利于微生物傳遞電子�！窘Y(jié)論】石墨烯、多壁碳納米管復(fù)合材料協(xié)同刃天青修飾MFC陽極可以減小活化內(nèi)阻從而加快電子傳遞,進而提高MFC的性能。
[Abstract]:[objective] to improve the performance of microbial fuel cell by using graphene and multi-walled carbon nanotube composites to modify microbial fuel cell anode. [methods] carbon cloth was used as substrate. Four kinds of anode materials, such as azure / carbon cloth R / CCP, azurographene / carbon cloth R GNS / CCN, edge azure multiwall carbon nanotube / carbon cloth R MWCNT / CCP, edge azurographene multiwall carbon nanotube / carbon cloth MWCNT / CCC, respectively, were prepared by drop coating method. [results] in the degradation of perchlorates, Compared with the blade azure / carbon cloth (with a maximum output voltage of 54 MV), the blade azure graphene / carbon cloth, The maximum output voltage of MFC on edge azure multi-wall carbon nanotube / carbon cloth and edge azurographene multi-wall carbon nanotube / carbon cloth anode was 87145275 MV, respectively, which increased 61.1111% 168.52% and 409.26% respectively. The reduction rate of perchlorate was also increased by 59.1% ~ 89.7% and 89.7% ~ 3.4% respectively. Electrochemical impedance spectroscopy (EIS) and Tafel measurements found that Compared with the edge azure / carbon cloth anode, the activation internal resistance of the edge azure multi-walled carbon nanotube / carbon cloth anode was reduced, and the electrode reaction rate was increased. However, the activation resistance and electrode reaction rate of the anodes were smaller, and the EPSs analysis showed that the number of the modified anodes increased, but the activation resistance of the anodes was lower and the reaction rate of the electrodes was faster than that of the anodes, and the EPSs analysis showed that the number of the modified anodes was increased. Polysaccharide reduced R GNS MWCNT / CC anode changed greatly, which was more favorable for microbial electron transfer. [conclusion] Graphene, multi-walled carbon nanotube composite and edge azure modified MFC anode can reduce activation resistance and accelerate electron transfer. Then improve the performance of MFC.
【作者單位】： 天津城建大學(xué);河北科技大學(xué);
【基金】：國家自然科學(xué)基金項目(No.51678387) 天津市自然科學(xué)基金重點項目(No.17JCZDJC39300)~~
【分類號】：TM911.45
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本文編號：1992382