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A "copolymer-co-morphology" conception for shape-controlled synthesis of Prussian blue analogues and as-derived spinel oxides

Nanoscale, ISSN: 2040-3372, Vol: 8, Issue: 4, Page: 2333-2342
2016
  • 56
    Citations
  • 0
    Usage
  • 46
    Captures
  • 1
    Mentions
  • 0
    Social Media
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  • Citations
    56
    • Citation Indexes
      56
  • Captures
    46
  • Mentions
    1
    • News Mentions
      1
      • News
        1

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"Copolymer-co-morphology" Conception for Shape-Controlled Synthesis of Prussian Blue Analogues and as-Derived Spinel Oxides

(Before It's News) Where size matters Nanoscale , 2015, Accepted Manuscript DOI : 10.1039/C5NR07193C, Paper Xuning Li, Lizhi Yuan, Junhu Wang, Luhua Jiang, Alexandre I.

Article Description

The morphologically and compositionally controlled synthesis of coordination polymers and spinel oxides is highly desirable for realizing new advanced nanomaterial functionalities. Here we develop a novel and scalable strategy, containing a "copolymer-co-morphology" conception, to shape-controlled synthesis of various types of Prussian blue analogues (PBAs). Three series of PBAs MFe[Co(CN)]·nHO (MFe-Co, M = Co, Mn and Zn) with well-controlled morphology have been successfully prepared through this strategy. Using MnFe-Co PBAs as the model, by increasing the relative content of Mn, flexible modulation of the morphology could be easily realized. In addition, a series of porous MnFeCoO nano-dices with well-inherited morphologies and defined cation distribution could be obtained through a simple thermal treatment of the PBAs. All these results demonstrate the good universality of this novel strategy. When evaluated as an electrocatalyst, the octahedral-site Mn/Mn content in MnFeCoO, mainly determined by sensitive Fe Mössbauer in combination with X-ray photoelectron spectroscopic techniques, was discovered to be directly correlated with the oxygen reduction/evolution reaction (ORR/OER) activity.

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