10.1186/2228-5326-3-44

Morphology dependence on anions in hydrothermal synthesis of Co3O4

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  • Wei-Min Zhang*1,
  • Meng Chen1,
  • Yao-Quan Jiang1,
  1. School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, CN
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Published in Issue 2013-07-15

How to Cite

Zhang, W.-M., Chen, M., & Jiang, Y.-Q. (2013). Morphology dependence on anions in hydrothermal synthesis of Co3O4. International Nano Letters, 3(1 (December 2013). https://doi.org/10.1186/2228-5326-3-44
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Abstract

Abstract One-dimensional (1D) nanostructures of Co 3 O 4 were synthesized via a mild hydrothermal route. The results of XRD, IR, and TEM revealed a phase transformation was accompanied by the replacement of NO 3 − with CO 3 2− throughout the hydrothermal process. The symmetric types and amount of NO 3 − and CO 3 2− intercalated between the brucite layers played an important role in the formation of nanowires from the hydrothermal system. The amount of CO 3 2− increased as the hydrothermal reaction proceeded. The substitution of CO 3 2− for NO 3 − led to a variation of interlayer forces thus resulted in the instability of intralayer interactions. Therefore, a shape transformation from sheets to wires occurred. Upon calcination, the shapes of precursors were preserved, and 1D nanostructures of Co 3 O 4 resulted.

Keywords

  • One-dimensional nanostructures,
  • Hydrothermal synthesis,
  • Anion
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