本文選題：微生物燃料電池　切入點(diǎn)：分離膜　出處：《高分子學(xué)報(bào)》2016年07期 　論文類型：期刊論文

【摘要】：采用芳香親核取代反應(yīng)及溶液鑄膜法,制備了一系列具有不同離子交換容量(IEC)的側(cè)鏈型磺化聚芳醚砜(s SPFAE)陽(yáng)離子交換膜,并作為分離膜應(yīng)用于微生物燃料電池(MFC).研究了s SPFAE膜在雙室MFC中產(chǎn)電性能并與商用陽(yáng)離子交換膜進(jìn)行了對(duì)比.s SPFAE膜的IEC為0.97~1.56 mmol/g,厚度約為80μm,在30℃時(shí)吸水率為20.9%~41.7%,電導(dǎo)率達(dá)到27.3~60.5 m S/cm,高于商用膜(22 m S/cm,420μm).對(duì)采用s SPFAE膜的MFC,根據(jù)峰功率密度法及極化曲線斜率法得到的MFC內(nèi)阻約為29~64Ω,隨著IEC的升高而降低,庫(kù)倫效率達(dá)到47.7%~55%,其中s SPFAE-1.56膜的最大功率密度達(dá)到657.3 m W/m~2,且s SPFAE膜均表現(xiàn)出優(yōu)于商用膜的產(chǎn)電性能.利用模擬等效電路對(duì)整個(gè)MFC系統(tǒng)進(jìn)行EIS分析,結(jié)果表明陽(yáng)極擴(kuò)散內(nèi)阻占這類MFC系統(tǒng)總內(nèi)阻的87%~90%.結(jié)合循環(huán)伏安曲線、電化學(xué)阻抗譜測(cè)試及電極電勢(shì)分析結(jié)果,表明分離膜對(duì)兩極室間物質(zhì)傳遞及陽(yáng)極擴(kuò)散阻抗有較大的影響.
[Abstract]:A series of side chain sulfonated poly (aryl ether sulfone sulfone) (SPFAE) cation exchange membranes with different ion exchange capacities were prepared by aromatic nucleophilic substitution reaction and solution casting. The electrical properties of s SPFAE membrane in double chamber MFC were studied and compared with commercial cation exchange membrane. The IEC of s SPFAE membrane was 0. 97 ~ 1. 56 mmol / g, the thickness was about 80 渭 m, and the water absorption rate was 20. 9% at 30 鈩，

本文編號(hào)：1609105