本研究以水熱法技術成功配製出具孔洞棒狀之不同金屬鈷氧化物(錳、鐵、
鎳與鋅)，並將其應用於鋰空氣電池之陰極觸媒，針對觸媒結構與摻雜不同金屬 對其之影響結論如下：
(1) 本研究藉由觸媒材料之結構設計可提升鋰空氣電池效能，其孔洞結構可 使放電反應時所須之氧氣與電解液流通，提供觸媒催化時具備良好三 相界面之條件，除提供額外空間儲存過氧化鋰而提高電容量，亦避免 放電產物覆蓋觸媒材料表面時電解液之堵塞，保持其孔隙使電解液流 動幫助放電產物分解，使電池可於40 圈中穩定循環充放電。
(2) 本研究藉由 XPS 鑑定得知以鐵與鋅金屬取代後，其表面結構之鈷三價 比例最高，使ORR 反應時更易於吸附氧氣並還原，提高觸媒之催化活 性，其分別可得2350.0 mAh gc-1
與2381.7 mAh gc-1
之高電容量，其中 與 Co3O4相比 FeCo2O4之充放電平台差明顯縮小，為四種不同金屬鈷 氧化物中具最小之充放電過電位，除其具最高之鈷三價比例外，其二 價鐵可能因易丟電子還原氧氣而幫助催化反應。
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