Barium cerate and its composite perovskites – synthesis techniques: a comprehensive review Seere Valappil Jasira, Vannadil Puthiyaveetil Veena, Cherlan Kottianmadathil Shilpa and Kavukuzhi Meerasahib Nissamudeen Eur. Phys. J. Appl. Phys., 98 (2023) 21 Published online: 30 March 2023 DOI: 10.1051/epjap/2023220259