无机材料学报2017，Vol.32Issue(12)：1250-1256,7.DOI:10.15541/jim20170112
化学镀制备高温质子导体镍电极及其电化学性能
Nickle Electrodes for High-temperature Proton-conducting Electrolytes: Prepa-ration by Electroless Plating and Electrochemical Performance
摘要
Abstract
Nickel layers were deposited on the surface of high-temperature proton-conducting CaZr0.9In0.1O3–δ (CZI) electrolytes by an electroless plating technique. Effects of acid etching and reduction processes on electrode surface morphology and electrolyte adherence to electrodes were investigated by SEM observation. The results showed that the electrodes prepared by a two-step electroless plating process in HNO3-HCl etching solution with hydrazine re-ducing agent were uniform and well connected to the electrolyte surface. Conductivity and proton transport rate between Ni-CZI symmetric cell and Pt-CZI symmetric cell were compared by electrochemical impedance spec-troscopy and concentration cell test. The total conductivity of the Ni-CZI symmetric cell was 4.131×10–4 S/cm at 800℃, and the proton transport rates of the Ni-CZI symmetric cell were all almost 100% at the operating tempera-ture higher than 400℃. The nickel electrode prepared by two-step electroless plating was achievable at low cost and had a comparable catalytic performance to that of platinum electrode, indicating it a promising candidate to replace关键词
化学镀/镍电极/高温质子导体Key words
electroless plating/nickel electrodes/high-temperature proton-conducting electrolytes分类
化学化工引用本文复制引用
温亚兵,张敬超,叶晓峰,王勇,韩金铎,罗文华,谷穗,孟建波,温兆银..化学镀制备高温质子导体镍电极及其电化学性能[J].无机材料学报,2017,32(12):1250-1256,7.基金项目
国家自然科学基金(51672294, 51372262) National Natural Science Foundation of China (51672294, 51372262) （51672294, 51372262）
