关键词：燃料电池；电解质材料；化学反应
摘 要：Widespread commercialization of fuel cells has been hindered by economic problems associated with the extensive use of platinum. In order to overcome such difficulties, researchers have so far developed anion-exchange membrane fuel cells (AEMFCs), which do not need expensive platinum catalysts in the electrodes. Our recent focus has been the preparation of new hydroxide (OH)-conducting membranes for applications to "hydrazine-fueled" AEMFCs by the γ-ray pre-irradiation grafting method. Generally, carbon dioxide (CO_2) is dissolved in the AEM, thereby resulting in the transformation from the OH to bicarbonate (HCO_3) ions. We investigated here the effect of CO_2 in the air on the exchange between OH and HCO_3 ions in the AEM.