以脈衝雷射沉積法與溶膠－凝膠法製備二氧化矽質子 傳導膜

Preparation of Proton Conducting Silica Membranes via Pulsed Laser Deposition and Sol-gel Methods

李昱昇(Yu-Sheng Li)

指導教授 ： 唐宏怡

國立暨南國際大學/科技學院/應用化學學系/碩士(2016年)

摘要

本研究以溶膠－凝膠法塗佈於多孔PVDF有機膜上，合成具有介孔結構的二氧化矽有機－無機複合膜，並應用在全釩液流電池的隔離膜。而為了增加溶膠－凝膠溶液和多孔PVDF的親和性，使用脈衝雷射沉積法對多孔PVDF進行表面修飾及改質。修飾過的PVDF膜做為溶膠－凝膠法的基板，可以生成約4微米厚的介孔二氧化矽緻密層，藉由同步形成的磺酸官能基增加質子通透速率。在離子選擇率測試當中，使選擇率超過Nafion膜。

關鍵字

介孔結構 ； 有機－無機複合膜 ； 全釩液流電池 ； 溶膠－凝膠法 ； 脈衝雷射沉積法

並列摘要

The purpose of this study is to synthesize mesoporous silica organic-inorganic complex membranes for vanadium redox flow batteries via sol-gel method dip-coating on porous PVDF membranes. Pulsed laser deposition (PLD) was utilized for modifying the porous PVDF membranes in order to enhance the bonding between the sol-gel solution and the porous PVDF membranes. A 4 μm thick mesoporous silica coating over the membrane, achieved from dip-coating, resulted in the formation of an organic-inorganic composite membrane which by far improved the proton transport through sulfonic functional groups. The modified mesoporous silica organic-inorganic complex membrane was found to have better selectivity compared to the regular Nafion membranes.

並列關鍵字

mesoporous ； organic-inorganic complex membrane ； vanadium redox flow battery ； sol-gel method ； pulsed laser deposition

參考文獻

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