Novel High Conductive Ceramic Materials Based on Two-Layer Perovskite BaLa2In2O7

The tasks of quality environmental improvement and the development of new energy sources are very relevant. Hydrogen-operating electrochemical devices are strongly needed innovative ceramic materials with target properties, one of which is a high level of proton conductivity. It this paper, the possibility of proton conductivity in acceptor-doped two-layer compositions based on BaLa2In2O7 was proved for the first time. It was proved that doping leads to an increase in conductivity values up to similar to 1.5 orders of magnitude. The most conductive is the BaLa1.9Sr0.1In2O6.95 composition which demonstrates protonic conductivity value 2 x 10(-5) S/cm at 450 degrees C. The acceptor-doped two-layer perovskites is a novel prospective class of proton-conducting materials, and further modification of their composition opens up a new method for the design of electrochemical energy generation devices.

Automated summary

This paper demonstrates the possibility of proton conductivity in acceptor-doped two-layer compositions based on BaLa2In2O7 for the first time. Doping leads to a significant increase in conductivity values, with BaLa1.9Sr0.1In2O6.95 showing the highest protonic conductivity value.