Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Morphological changes of $BaCO_3$ microcrystal with the synthetic conditions

합성조건에 따른 $BaCO_3$ 마이크로 결정의 형태 변화

  • Published : 2009.10.31
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Abstract

$BaCO_3$ crystals with various morphology were prepared using precipitation, hydrothermal and ligand-assisted methods. An irregular structure of $BaCO_3$ microparticle was obtained by simple precipitation method from $Ba(NO_3)_2$ and $Na_2CO_3$ in aqueous solution. Hexagonal pyramidals of $BaCO_3$ were synthesized using a hydrothermal method between $Ba(NO_3)_2$ and urea. Hexagonal rods of $BaCO_3$ were also synthesized using the ligand-assisted hydrothermal method. The aspect ratio of $BaCO_3$ hexagonal rods was increased with the concentration of ligand.

침전법, 수열 반응법, 리간드 보조법을 사용하여 다양한 형태의 $BaCO_3$ 결정을 합성하였다. 수용액에서 $Ba(NO_3)_2$과 $Na_2CO_3$를 단순 침전시키면 불규칙한 입자 형태의 $BaCO_3$ 마이크로 결정이 얻어졌다. 수열 반응으로 $Ba(NO_3)_2$와 urea를 반응시켜 육각형 막대 피라미드 형태의 $BaCO_3$를 합성하였으며, 리간드 보조 수열 반응법을 사용하여 육각형 막대형의 $BaCO_3$를 합성하였다. 리간드 농도가 증가 할수록 $BaCO_3$ 육각형 막대의 종횡비가 증가하였다.

Keywords

References

  1. C. Yan, L. Zou, D. Xue, J. Xu and M. Liu, "Chemical tuning polymorphology of functional materials by hydrothermal and solvothermal reactions", J. Mater. Sci. 43(7) (2008) 2263 https://doi.org/10.1007/s10853-007-2072-1
  2. E.K. Ryu and Y.D. Huh, "Synthesis of hierarchical selfassembled BaMo0$_4$ microcrystals", Bull. Kor. Chern. Soc. 29(2) (2008) 503 https://doi.org/10.5012/bkcs.2008.29.2.503
  3. J. Hu, T.w. Odom and C.M. Lieber, "Chemistry and physics in one dimension: synthesis and properties of nanowires and nanotubes", Acc. Chem. Res. 32(5) (1999) 435 https://doi.org/10.1021/ar9700365
  4. Y. Xia, P. Yang, Y. Sun, Y. Wu, B. Mayers, B. Gates, Y. Yin, F. Kim and H. Yan, "One-dimensional nanostructure: synthesis, characterixation, and applications", Adv. Mater. 15(5) (2003) 353 https://doi.org/10.1002/adma.200390087
  5. SJ. Hurst, E.K. Payne, L. Qin and C.A. Mirkin, "Multisegmented One-dimensional nanorods prepared by hardtemplate synthetic methods", Angew. Chem. Int. Ed. 45(17) (2006) 2672 https://doi.org/10.1002/anie.200504025
  6. S. Lv, P. Li, J. Sheng and W. Sun, "Synthesis of single-crystalline BaCO$_3$ nanostructure with different morphologies via a simple PVP-assisted method", Mater. Lett. 61(21) (2007) 4250 https://doi.org/10.1016/j.matlet.2007.01.075
  7. M.G Ma, Y.J. Zhu, GF. Cheng and Y.H Huang, "Fabrication and characterization of BaC0$_3$ nanostructures", Mater. Lett. 62(17-18) (2008) 3110 https://doi.org/10.1016/j.matlet.2008.01.111
  8. D. Jin, X. Yu, L. Yue and P. Sun, "Synthesis of BaC0$_3$ with different morphologies using amphiphilic PS-PAA copolymer as medium", lnorg. Mater. 45(2) (2009) 168 https://doi.org/10.1134/S0020168509020113
  9. SJ. Homeijer, MJ. Olszta, R.A. Barrett and L.B. Gower, "Growth of nanofibrous barium carbonate on calcium carbonate seeds", Cryst. Growth Des. 310(11) (2008) 2938 https://doi.org/10.1016/j.jcrysgro.2008.02.009
  10. Q. Zhang, C. Chen and L. Fang, "Synthesis of thorny BaC0$_3$ dendritic structures via a simple PEG-assisted method", Mater. Chern. Phys. 111(2-3) (2008) 191 https://doi.org/10.1016/j.matchemphys.2008.04.001
  11. Y. Ni, H. Zhang, J. Hong, L. Zhang and X. Wei, "PAM-directed fabrication, shape evolution and formation mechanism of BaCO$_3$ crystals with higher-order superstructures", Cryst. Growth Des. 310(20) (2008) 4460 https://doi.org/10.1016/j.jcrysgro.2008.07.077
  12. M.G Ma, Y.J. Zhu, J.F. Zhu and Z.L. Xu, "A simple route to synthesis of BaC0$_3$ nanostructures in water/ethylene glycol mixed solvents", Mater. Lett. 61(29) (2007) 5133 https://doi.org/10.1016/j.matlet.2007.04.018
  13. L. Shi and F. Du, "Solvothermal synthesis of SrCo$_3$ hexahedral ellipsoids", Mater. Lett. 61(14-15) (2007) 3262 https://doi.org/10.1016/j.matlet.2006.11.050