Journal
MATERIALS LETTERS
Volume 111, Issue -, Pages 89-92Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2013.08.083
Keywords
La1-xSrxFe1-yMnyO3; Hollow nanosphere; Hydrogen peroxide; Microstructure; Nanoparticles
Funding
- Natural Science Foundation of China [21106143, 21076211]
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Perovskite-type LaFeO3 and La1-xSrxFe1-yMnyO3 hollow nanospheres were prepared, for the first time, via a urea-assisted one-pot solvothermal method. The chemical compositions, crystalline phases, specific surface areas and morphologies of the materials as-prepared were characterized by ICP-OES, XRD, nitrogen adsorption and TEM, respectively. It was found that the presence of urea greatly decreased the nucleation temperature which led to the smaller particle sizes of products. As a potential application, the materials as-prepared exhibited superior activity and good stability in the catalytic decomposition of hydrogen peroxide. The excellent activity of La1-xSrxFe1-yMnyO3 hollow nanospheres can be rationalized by their high specific surface areas and hollow nanoparticle morphology. The high stability of these materials can be attributed to their perovskite-type crystal structures. (C) 2013 Elsevier B.V. All rights reserved.
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