• 作者： Hu, Chi-Chang; Chen, Chung-Ann
• 中文摘要： 利用循環伏安法與計時電位測定法, 研究熱分解製備之鈷系尖晶石氧化物披覆電極經氫氣產生後, 其伏安行為與充放電之應答。由循環伏安與計時電位測定結果發現, 伏安電荷與充放電之電荷容量會因經過氫氣產生之陰極極化而大幅增加; 因此, 大部份之氧化物可應用於電化學電容器或水溶液電池之電極材料。此一系列氧化物的電化學特性與氫氣產生之陰極極化處理之間有重大相關性, 極可能是受氧化物之銅離子的部分溶解與鎳離子的部分還原之影響的結果。此外, 亦對陰極極化後之氧化物的結構特性(包括表面型態, 氧化狀態與結晶性)進行研究。
• 英文摘要： The voltammetric and charging/discharging responses of Ni/sub 1-x/Cu/sub x/Co/sub 2/O/sub 4/-coated titanium electrodes (prepared by thermal decomposition) post cathodic polarization of extensive hydrogen evolution were investigated using cyclic voltammetry and chronopotentiometry. From chronopotentiometric and voltammetric results, their voltammetric charges and charge- discharge capacities were increased by this cathodic polarization. In addition, most of these oxides were considered as potential materials for the applications of either electrochemical capacitors or aqueous batteries. The electrochemical characteristics of Ni/sub 1-x/Cu/sub x/Co/sub 2/O/sub 4/ were changed by the cathodic polarization, probably due to the partial dissolution of Cu species and the partial reduction of Ni species within the oxide matrix. The textural properties (including morphologies, oxidation states, and crystallite) of these oxides post cathodic polarization were also studied.
• 中文關鍵字： 陰極極化; 電荷容量; 鎳銅鈷氧; 電位電荷; 質感性質; 尖晶石; 循環伏安法
• 英文關鍵字： Cathodic Polarization; Charge Capacity; Nickel Copper Cobalt Oxygen (Nicucoo); Voltammetric Charge; Textural Property; Spinel; Cyclic Voltammetry