Morphology-controlled synthesis of $BaWO_4$ crystals using bidentate ligands

2자리 리간드를 이용한 $BaWO_4$ 결정의 형태 조절 합성

  • Published : 2007.08.03

Abstract

[ $BaWO_4$ ] crystals were synthesized using bidentate ligands. The reaction parameters such as the concentration of ligand and molar ratio of $[WO_4^{2-}]/[Ba^{2+}]$ played important roles in the formation of $BaWO_4$ crystals with various morphologies. When TMEDA was used as a ligand, the microrods of $BaWO_4$ crystals with length of $15{\sim}20{\mu}m$ were formed via the self assembly of cross-like plates of 250 nm in width and $2{\sim}3{\mu}m$ in length.

2자리 리간드를 사용하여 $BaWO_4$ 결정을 합성하였다. 리간드의 농도와 $[{WO_4}^{2-}]/[Ba^{2+}]$ 비율과 같은 반응 변수는 다양한 형태의 $BaWO_4$ 결정을 형성하는데 매우 중요한 역할을 한다. TMEDA를 리간드로 사용했을 때는 250nm의 폭과 $2{\sim}3{\mu}m$의 길이를 가진 십자형의 단면들의 자기 조립에 의해서 $15{\sim}20{\mu}m$ 길이의 마이크로 막대형의 $BaWO_4$ 결정을 얻었다.

Keywords

References

  1. P. Cerny, P.G Zverev, H. Jelinkova and T.T. Basiev, 'Efficient Raman shifting of picosecond pulses using $BaWO_4$ crystal', Opt. Commun. 177 (2000) 397 https://doi.org/10.1016/S0030-4018(00)00575-7
  2. T.T. Basiev, A.A. Sobol, P.G Zverev, L.I. Ivleva, V.V. Osiko and R.C. Powell, 'Raman spectroscopy of crystals for stimulated Raman scattering', Opt. Mater. 11 (1999) 307 https://doi.org/10.1016/S0925-3467(98)00030-5
  3. T.T. Basiev, A.A. Sobol, Y.K. Voronko and P.G. Zverev, 'Spontaneous Raman spectroscopy of tungstate and molybdate crystals for Raman lasers', Opt. Mater. 15 (2000) 205 https://doi.org/10.1016/S0925-3467(00)00037-9
  4. Y. Mao and S.S. Wong, 'General, room-temperature method for the synthesis of isolated as well as arrays of single-crystalline$ABO_4$ -type nanorods', J. Am. Chem. Soc. 126 (2004) 15245 https://doi.org/10.1021/ja046331j
  5. Y. Liu and Y. Chu, 'Surfactant-assisted synthesis of single crystal $BaWO_4 $ octahedral microparticles', Mater. Chem. Phys. 92 (2005) 59 https://doi.org/10.1016/j.matchemphys.2004.12.030
  6. Z. Luo, H. Li, J. Xia, W. Zhu, J. Guo and B. Zhang, 'Controlled synthesis of different morphologies of $BaWO_4$ crystals via a surfactant-assisted method', J. Cryst. Growth 300 (2007) 523 https://doi.org/10.1016/j.jcrysgro.2006.12.031
  7. B. Xie, Y. Wu, Y. Jiang, F. Li, J. Wu, S. Yuan, W. Yu and Y. Qian, 'Shape-controlled synthesis of $BaWO_4$ crystals under different surfactants', J. Cryst. Growth 235 (2002) 283 https://doi.org/10.1016/S0022-0248(01)01800-0
  8. F. Zhang, S.P. Yang, H.M. Chen, Z.H. Wang and X.B. Yu, 'The effect of an anionic starburst dendrimer on the crystallization of $BaWO_4$ under hydrothermal reaction conditions', J. Cryst. Growth 267 (2004) 569 https://doi.org/10.1016/j.jcrysgro.2004.03.076
  9. Z. Luo, H. Li, J. Xia, W. Zhu, J. Guo and B. Zhang, 'Microwave-assisted synthesis of barium tungstate nanosheets and nanobelts by using polymer PVP micelle as templates', Mater. Lett. 61 (2007) 1845 https://doi.org/10.1016/j.matlet.2006.07.143
  10. H. Shi, L. Qi, J. Ma and H. Cheng, 'Synthesis of single crystal$BaWO_4 $ nanowires in catanionic reverse micelles', Chem. Commun. (2002) 1704
  11. H. Shi, L. Qi, J. Ma and H. Cheng, 'Polymer-directed synthesis of penniform $BaWO_4$ nanostructures in reverse micelles', J. Am. Chem. Soc. 125 (2003) 3450 https://doi.org/10.1021/ja029958f
  12. S. Kwan, F. Kim, J. Akana and P. Yang, 'Synthesis and assembly of $BaWO_4$ nanorods', Chem. Commun. (2001) 447
  13. H. Shi, X. Wang, N. Zhao, L. Qi and J. Ma, 'Growth mechanism of penniform $BaWO_4 $ nanostructures in catanionic reverse micelles involving polymers', J. Phys. Chem. B 110 (2006) 748 https://doi.org/10.1021/jp0545694
  14. C. Zhang, E. Shen, E. Wang, Z. Kang, L. Gao, C. Hu and L. Xu, 'One-step solvothermal synthesis of highly ordered $BaWO_4$ and $BaMoO_4 $ nanostructures', Mater. Chem. Phys. 96 (2006) 240 https://doi.org/10.1016/j.matchemphys.2005.06.061
  15. X. Zhao, T.K. Li, Y.Y. Xi, D.H.L. Ng and J. Yu, 'Synthesis of$BaWO_4 $ hollow structures', Cryst. Growth Des. 6 (2006) 2210 https://doi.org/10.1021/cg0601655
  16. J. Liu, Q. WU and Y. Ding, 'Controlled synthesis of different morphologies of$ BaWO_4$ crystals through biomembrane organic-addition supramolecule templates', Cryst. Growth Des. 5 (2005) 445 https://doi.org/10.1021/cg0498002
  17. X. Zhang, Y. Xie, F. Xu and X. Tian, 'Growth of $BaWO_4$ fishbone-like nanostructures in w/o microemulsion', J. Colloid Iriterface Sci. 274 (2004) 118 https://doi.org/10.1016/j.jcis.2004.01.048
  18. X. Wang, H. Xu, H. Wang and H. Yan, 'Morphologycontrolled $BaWO_4$ . powders via a template-free precipitation technique', J. Cryst. Growth 284 (2005) 254 https://doi.org/10.1016/j.jcrysgro.2005.06.045