Preparation of alkaline anion exchange membranes based on functional poly(ether-imide) polymers for potential fuel cell applications

Polymer anion-selective membranes for electrolytic splitting of water. Part II: Enhancement of ionic conductivity and performance under conditions of alkaline water electrolysis

“…The observed values of the IEC are comparable with those published in the literature Fig. 4 Dependencies of a tensile strength, b tensile modulus, c energy to break of the activated membrane on the amount of water-soluble component added to the matrix polymer during production either for heterogeneous or homogeneous anion-exchange membranes [16][17][18].…”

“…At a temperature of 70°C, the highest ionic conductivity of 7.2 S m -1 was achieved in the case of the membrane with an addition of 6.8 wt% of the water-soluble component. This value is higher than the IC of many other heterogeneous [17,19,20] or homogeneous [18,21,22] anion-exchange membranes reported in the literature. A further increase in the PEG-PPG addition resulted in a decrease of the IC.…”

Development of imidazolium-type alkaline anion exchange membranes for fuel cell application

“…3,[14][15][16][17] However, in order to introduce such QA groups, extremely volatile reagents, such as trimethylamine (TMA), are employed, resulting in an environmentally unfriendly synthetic process. The low alkali thermochemical stabilities of QA-type AAEMs limit their long-term durability of APEFCs.…”

Electrochemical and in situ ATR-FTIR studies of ethanol electro-oxidation in alkaline medium using PtRh/C electrocatalysts

“…Recently, the development of anion exchange membranes for alkaline fuel cells [8][9][10][11][12] has attracted the interest in studying the ethanol electro-oxidation in alkaline medium [13][14][15]. Alkaline medium presents several advantages when compared to acidic medium, as an oxygen reduction reaction takes place with faster kinetic than in acid media, increasing the electric potential of the fuel cell [15] and many non-noble metals are stable for electrochemical applications, either as anode or a cathode [14].…”