特種Nafion溶液制備及其在PEMFC中的應(yīng)用研究

Nafion溶液在燃料電池、電極修飾、電化學(xué)分析、電化學(xué)催化等領(lǐng)域具有廣泛用途。采用特種高沸點溶劑，獲得了溶鑄性能優(yōu)良Nafion的溶液。比較溶鑄Nafion膜與原始Nafion膜的IR光譜可以看出，Nafion溶液制備方法未對Nafion膜的化學(xué)組成與分子結(jié)構(gòu)產(chǎn)生影響，但溶鑄膜的分子排列更加規(guī)整有序。將該溶液在PEMFC中應(yīng)用，其性能優(yōu)于目前的商品水—醇體系Nafion溶液。
關(guān) 鍵 詞 電化學(xué); Nafion溶液; 質(zhì)子交換膜; 質(zhì)子交換膜燃料電池

Abstract Nafion solution has been widely applied in many fields, for example, the fuel cell, the modifying electrode, the electrochemistry analysis, and the electrochemistry catalyze. The technique of preparation of special Nafion solution by using high boiling-point dissolvent is reported. Comparing the IR spectrum of the casting Nafion membrane with the original Nafion membrane, it is know that the preparation method of special Nafion solution could not change the chemical composition and the molecule structure of the Nafion membrane, and that the molecule arrangement of the casting Nafion membrane is more orderliness than the original Nafion membrane. This solution obtained in the technique has more superiority property than the Nafion solution of water-alcohols (low boiling-point) system when it is used in the PEMFC.
Key words electrochemistry; Nafion solution; proton exchange membranes; PEMFC