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The effect of NH on shape modulation of LaSrMnO crystals in a hydrothermal environment

CrystEngComm, ISSN: 1466-8033, Vol: 16, Issue: 42, Page: 9842-9846
2014
  • 16
    Citations
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  • 28
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Metrics Details

  • Citations
    16
    • Citation Indexes
      16
  • Captures
    28

Article Description

Perovskite oxide (LaSrMnO) 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 LaSrMnO 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 P2/a monoclinic, induced by the evolution processes of different facets during crystallization. Our proposed hypothesis is that the NH interaction with octahedral MnO may be beneficial in enhancing the activity of LaSrMnO for applications, and moves toward strategies for the development of highly active perovskite oxides.

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