本文選題：化學(xué)鍍 + 鎳電極　； 參考：《無機(jī)材料學(xué)報(bào)》2017年12期

【摘要】：采用化學(xué)鍍?cè)诟邷刭|(zhì)子導(dǎo)體Ca Zr_(0.9)In_(0.1)O_(3-δ)(CZI)的電解質(zhì)陶瓷表面沉積金屬鎳電極,通過SEM顯微結(jié)構(gòu)分析比較了酸刻蝕和還原工藝對(duì)電極形貌以及電極 電解質(zhì)界面的影響。結(jié)果表明,使用HNO_3-HCl混合刻蝕液,并以水合肼為還原劑的二次化學(xué)鍍可獲得顆粒均勻細(xì)小且界面結(jié)合良好的鎳電極。通過電化學(xué)阻抗譜并結(jié)合濃差電池等方法研究比較了以化學(xué)鍍鎳電極和涂覆焙燒鉑電極為電極,CZI為電解質(zhì)的對(duì)稱電池的電導(dǎo)率和質(zhì)子遷移率。工作溫度為800℃時(shí),鎳電極高溫質(zhì)子導(dǎo)體的總電導(dǎo)率為4.131×10~( 4) S/cm,并且工作溫度在400℃以上時(shí),鎳電極對(duì)稱電池的質(zhì)子遷移率均接近100%。這些結(jié)果表明,二次化學(xué)鍍制備的鎳電極具有與鉑電極相近的電化學(xué)性能,而成本則更低,可以取代Pt電極用于高溫質(zhì)子導(dǎo)體的電化學(xué)器件中。
[Abstract]:Metal nickel electrodes deposited on the surface of electrolytic ceramics were deposited by electroless plating on the surface of high temperature proton conductor CaZrS (0.9InP). The effect of acid etching and reduction process on the morphology of the electrode and the interface between electrode and electrolyte were analyzed and compared by means of SEM microstructure. The results show that the nickel electrode with fine particles and good interface can be obtained by secondary electroless plating with HNO_3-HCl mixed etching solution and hydrazine hydrate as reducing agent. The conductivity and proton mobility of a symmetrical cell with electroless nickel plating electrode and roasted platinum electrode as electrolyte were studied by electrochemical impedance spectroscopy (EIS) and concentration difference cell. When the operating temperature is 800 鈩，

本文編號(hào)：1816187