"

Cookies ussage consent

I agree.

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Synthesis and characterization of LaMnO3+δ nanoparticles prepared by a simple thermal hydro-decomposition method

S. DAENGSAKUL1, C. MONGKOLKACHIT2, C. THOMAS1, IAN THOMAS1, SINEENAT SIRI1,3, V. AMORNKITBAMRUNG1, S. MAENSIRI1,*

Affiliation

  1. Department of Physics, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
  2. National Metal and Materials Technology Center (MTEC), 114 Thailand Science Park, Paholyothin, Klong Luang, Pathumthan, 12120, Thailand
  3. Department of Biochemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand

Abstract

This study reports the synthesis of LaMnO3+δ (LMO) nanoparticles by a thermal hydro-decomposition method using acetate salts of La and Mn as starting materials. Thermal decomposition of the precursor was carried out at temperatures of 700, 800, 900 and 1000 oC for 6 h, to obtain the LaMnO3+δ nanoparticles. The synthesized LaMnO3+δ nanoparticles were characterized by XRD, FT-IR, SEM and TEM. Structural characterization showed that all the prepared samples had a perovskite structure, which changed from cubic to rhombohedral with increasing temperature of thermal decomposition. The crystallite sizes are in the range of 20 - 87 nm. Magnetic characteristics of the sample measured by a vibrating sample magnetrometer (VSM) at room temperature show paramagnetic behavior.

Keywords

Manganite, Nanoparticles, Synthesis, Crystal structure, Magnetic properties.

Citation

S. DAENGSAKUL, C. MONGKOLKACHIT, C. THOMAS, IAN THOMAS, SINEENAT SIRI, V. AMORNKITBAMRUNG, S. MAENSIRI, Synthesis and characterization of LaMnO3+δ nanoparticles prepared by a simple thermal hydro-decomposition method, Optoelectronics and Advanced Materials - Rapid Communications, 3, 2, February 2009, pp.106-109 (2009).

Submitted at: Dec. 24, 2008

Accepted at: Feb. 13, 2009