Synthesis of high-performance La0.6Sr0.4CoO3-δ nano-powder prepared via an acetic-acrylic method

A novel acetic-acrylic (AA) approach was developed to obtain La0.6Sr0.4CoO3-delta (LSC) using lanthanum oxide, acetate, and acrylic acid as the starting materials. We synthesized several LSC products with varying acrylic acid (L) and metal salt (M) molar ratios (L/M). The precursors and the final products were thoroughly characterized. When the L/M molar ratio is 0.9, the high-purity nano LSC powders were obtained by heating at 900 degrees C. The conductivity of LSC bulk sample was equal to 2534 and 2430 S cm(-1) at 650 and 700 degrees C, respectively. This sintered LSC was used in a cathode with polarisation resistances (Rp) of 0.190 and 0.0843cm(2) at 650 and 700 degrees C, respec-tively. It was observed that at 700 and 650 degrees C, the power density of an anode with a structure that might be defined as Ni-3YSZ/8YSZ/GDC/LSC-0.9 was 947 and 585 mW cm_2, respectively. Our results revealed that the high-performance LSC powders could be synthesized by the acetic-acrylic synthesis method, applicable to a large scale.

Automated summary

A novel acetic-acrylic method was developed to synthesize high-performance La0.6Sr0.4CoO3-δ (LSC) powders, which were used in cathode and anode materials.