為因應能源短缺及再生能源的發展，氫能與燃料電池的研究在近年來逐漸成為顯學。無論是使用綠能進行水分解產生氫氣做為儲能媒介，或是在可充電式金屬空氣電池的應用上，ORR和OER催化劑的開發都是至關重要的。由於具較好ORR/OER催化活性的氧化物的導電度普遍不佳導致電子傳遞產生巨大障礙而會添加碳材料組成複合材料增加其導電性。本研究即致力於發展可增加氧化物催化活性的碳材料導電添加劑。
本研究以化學沉澱法合成LaNiO3鈣鈦礦氧化物並與以氫氧化鉀高溫活化之PR-25-XT-PS氣相成長奈米碳纖維組成複合物進行氧氣還原與氧氣析出反應雙功能催化。結果顯示相較於商業應用的碳材料如Vulcan® XC-72R、Super P® Li與石墨烯，以經KOH活化後的PR-25-XT-PS氣相成長奈米碳纖維作為在650 °C下煆燒合成的LaNiO3鈣鈦礦氧化物的導電添加劑無論在ORR或OER催化都擁有較以Vulcan® XC-72R、Super P® Li或石墨烯為導電添加劑更優異的催化活性表現。在旋轉電極轉速為1600 rpm下，其E10值為1623 mV，E-3值為665 mV，而E值則為958 mV，且在ORR電子傳遞數上亦較現有商用碳材料高，表示進行ORR時產生較少的中間產物HO2-。在本研究中，分別以XRD、SEM、TEM、BET、Raman及XPS等材料分析方法就材料的晶體結構、形貌、微結構與化學態方面進行催化劑催化性能差異的探討。

In this study, LaNiO3 perovskite oxide was synthesized by chemical precipitation method and a complex of PR-25-XT-PS vapor grown carbon nanofibers activated by potassium hydroxide at high temperature was used for bifunctional oxygen reduction and oxygen evolution reaction. The results show that compared to commercially available carbon materials such as Vulcan® XC-72R, Super P® Li and graphene, the KOH-activated PR-25-XT-PS vapor grown carbon nanofibers as a conductive additive to LaNiO3 perovskite synthesized by calcination at 650 °C has a higher performance in both ORR and OER catalysis than Vulcan® XC-72R, Super P® Li and Graphene. XC-72R, Super P® Li or graphene as conductive additives. The E10 value was 1623 mV, E-3 value was 665 mV, and E value was 958 mV at 1600 rpm of the rotating electrode, and the ORR electron transfer number was higher than that of existing commercial carbon materials, indicating that less intermediate products, HO2-, were produced during ORR. In this study, the differences in catalytic performance of the catalysts were investigated by XRD, SEM, TEM, BET, Raman and XPS.

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