Abstract
Monophasic and highly crystalline Self-dopant LaMnO3+δ nanoparticles (72nm) have been successfully synthesized at low temperature (773K) by metal citrate complex method based on Pechini-type reaction route which showed ferromagnetic interaction. Surface areas of LaMnO3+δ nanoparticles were found to be 157.4 and 153 m2g−1 for the samples annealed at 773K and 1173K, respectively.
•Self-dopant LaMnO3+δ nanoparticles using Pechini-type reaction route at 773K.•Size range varies from 72 to 80nm.•Surface area varies from 153 to 157m2g−1.•Extensive characterization using sophisticated techniques.
Self-dopant LaMnO3+δ nanoparticles have been successfully synthesized by metal citrate complex method based on Pechini-type reaction route, at low temperature (773K). Powder X-ray diffraction and transmission electron microscope revealed pure and nanostructured phase of LaMnO3+δ (δ=0.125) with an average grain size of ∼72nm (773K) and ∼80nm (1173K). DC-magnetization measurements under an applied magnetic field of H=±60kOe showed an increase in the magnetization with the increase of calcination temperature. Ferromagnetic nature shown by non-stoichiometric LaMnO3+δ was verified by well-defined hysteresis loop with large remanent magnetization (Mr) and coercive field (Hc). Surface areas of LaMnO3+δ nanoparticles were found to be 157.4 and 153 m2g−1 for the samples annealed at 773K and 1173K, respectively.