Preparation and Performance of Perovskite Oxides LaxSr1−xCo0.2Fe0.8O3−δ for Air Electrode Catalyst of New Type of Energy Storage Equipment

With the development of printing industry, screen printing technology has become more and more important in the field of electrode preparation for new energy batteries. This research reported that perovskite oxides LaxSr1-xCo0.2Fe0.8O3-δ (x = 0.2, 0.4, 0.6 and 0.8, denoted as LSCF-2828, LSCF-4628, LSCF-6428 and LSCF-8228) are prepared as electrode catalysts by an electrospinning approach. The structures and morphologies of LSCF catalysts were altered with molar ratios of La/Sr. Among them, LSCF-6428 catalyst possesses stable structure and morphology, and exhibits low OER onset potential (1.578 V) and high catalytic activity.