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Issue 42, 2014
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The effect of NH4+ on shape modulation of La1−xSrxMnO3 crystals in a hydrothermal environment

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Abstract

Perovskite oxide (La1−xSrxMnO3) crystal facet control is rarely reported due to difficulties in modulation, even though it is highly important in surface-dependent catalytic and electrochemical applications. In this paper, we present the shape diversity of La1−xSrxMnO3 crystals evolved from a hydrothermal environment when urea is used as an effective facet modulator. By changing the La/Sr ratio from 1 to 3, the structure changes from pseudo-cubic to P21/a monoclinic, induced by the evolution processes of different facets during crystallization. Our proposed hypothesis is that the NH4+ interaction with octahedral MnO6 may be beneficial in enhancing the activity of La1−xSrxMnO3 for applications, and moves toward strategies for the development of highly active perovskite oxides.

Graphical abstract: The effect of NH4+ on shape modulation of La1−xSrxMnO3 crystals in a hydrothermal environment

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Article information


Submitted
30 Jun 2014
Accepted
20 Aug 2014
First published
21 Aug 2014

CrystEngComm, 2014,16, 9842-9846
Article type
Paper

The effect of NH4+ on shape modulation of La1−xSrxMnO3 crystals in a hydrothermal environment

K. Huang, W. Feng, L. Yuan, J. Zhang, X. Chu, C. Hou, X. Wu and S. Feng, CrystEngComm, 2014, 16, 9842
DOI: 10.1039/C4CE01332H

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