Synthesis of transition metal doped lanthanum silicate oxyapatites by a facile co-precipitation method and their evaluation as solid oxide fuel cell electrolytes.

ABSTRACT: Transition metal doped apatite La₁₀Si_6-x Co _x O_27-δ (x = 0.0; 0.2; 0.8) and La₁₀Si_5.2Co_0.4Ni_0.4O_27-δ are synthesized by co-precipitation method followed by sintering. The precursor precipitates and apatite products are characterized by XRD, FTIR, TGA/DTA, Raman Spectroscopy, SEM-EDX and electrochemical impedance spectroscopy. The presence of apatite phase with hexagonal structure is confirmed through the XRD results. The conductivity measurements of the samples sintered at 1000 °C show that the ionic conductivity increases with increasing content of Co²⁺ doping into apatite that is further increased by co-doping of Ni²⁺. The Co doped ap

SUBMITTER: Mbah Ngantchou HJ 

PROVIDER: S-EPMC10113921 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature