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The effect of NH4+ on shape modulation of La1-xSrxMnO3 crystals in a hydrothermal environment.
- Source :
-
CrystEngComm . 2014, Vol. 16 Issue 42, p9842-9846. 5p. - Publication Year :
- 2014
-
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. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PEROVSKITE
*CRYSTALLIZATION
*ELECTRONIC modulators
*OCTAHEDRA
*CATALYSIS research
Subjects
Details
- Language :
- English
- ISSN :
- 14668033
- Volume :
- 16
- Issue :
- 42
- Database :
- Academic Search Index
- Journal :
- CrystEngComm
- Publication Type :
- Academic Journal
- Accession number :
- 100092354
- Full Text :
- https://doi.org/10.1039/c4ce01332h