Fabrication of Pr2CuO4 fiber by using electrospinning and its application in cathode of solid oxide fuel cell

• Main Authors: Chien-Hung Chen, 陳建宏
• Other Authors: Te-Wei Chiu
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/f55nht

碩士 === 國立臺北科技大學 === 材料科學與工程研究所 === 102 === In this study, Pr2CuO4 was used as the cathode material in intermediate temperature solid oxide fuel cells (IT-SOFCs). One such compound is Ln2CuO4, which has a Ruddlesden-Popper (RP) structure and is often labeled as the T phase. For compounds with smaller Ln3+ cations (Pr2CuO4), the so called T’ phase is observed, which differs from the T phase mostly in the displacement of oxygen anions occupying O2 positions along their c-axes. The Pr2CuO4 cathode material was prepared by solid state reaction and electrospinning technique. The Pr2CuO4 cathode prepared via electrospun fiber showed excellent cathode performance in electrochemical measurement. The fiber morphologies of cathode induced large amounts of triple phase boundaries, which promoted oxygen diffusion on the surface. The lowest area-specific resistance was obtained with Pr2CuO4 fiber read as 0.35 Ωcm2 at 800°C in half cell and the maximum power density was 431.19 mWcm-2 at 750°C in single cell. The electrospun Pr2CuO4 fiber is a potential cathode material for IT-SOFCs.