Title: Microstructure and total oxidising capacity for m-xylene of La1-xCaxCoO3 nanoparticles synthesised by combustion method

Authors: Nguyen Xuan Dung; Phan Thi Minh Huyen; Luu Tien Hung; Steffen Schulze; Michael Hietschold

Addresses: Department of Chemistry, Vinh University, 182 Le Duan str., Vinh city, Nghean, Vietnam ' Department of Chemistry, Vinh University, 182 Le Duan str., Vinh city, Nghean, Vietnam ' Department of Electronics and Telecommunications, Vinh University, 182 Le Duan str., Vinh city, Nghean, Vietnam ' Solid Surfaces Analysis Group, Institute of Physics, Technische Universität Chemnitz, D-09126 Chemnitz, Germany ' Solid Surfaces Analysis Group, Institute of Physics, Technische Universität Chemnitz, D-09126 Chemnitz, Germany

Abstract: Nanoparticles of La1-xCaxCoO3 (x = 0, 0.1, 0.3 and 0.5) perovskites were synthesised by the combustion method using glycine agent and corresponding metal nitrates. The perovskites were characterised by thermogravimetric and differential thermal analysis (TG-DTA) and Brunauer-Emmett-Teller (BET) adsorption isotherms. The microstructure of samples was characterised by X-ray diffraction (XRD) combined with transmission electron microscopy (TEM), selected area electron diffraction (SAED) and energy dispersive X-ray (EDX). The grain size ranges from 20 nm to 30 nm. A high surface area from 15 m2/g to 21 m2/g was achieved for samples annealed at relatively low temperature (600°C). The perovskites exhibit a good catalytic activity in total oxidation of m-xylene at low reaction temperature.

Keywords: La1-xCaxCoO3; nanoparticles; transmission electron microscopy; TEM; catalytic activity; combustion synthesis.

DOI: 10.1504/IJNT.2018.089571

International Journal of Nanotechnology, 2018 Vol.15 No.1/2/3, pp.233 - 241

Available online: 24 Jan 2018 *

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