Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
권호 표지

Preparation and Characterization of Porous CeO2 Using Ionic Liquids

이온성액체를 이용한 다공성 산화세륨 합성

  • Yoo, Kye Sang (Department of Chemical Engineering, Seoul National University of Technology) ;
  • Lee, Bu Ho (Department of Chemical Engineering, Seoul National University of Technology)
  • 유계상 (서울산업대학교 화학공학과) ;
  • 이부호 (서울산업대학교 화학공학과)
  • Received : 2009.03.12
  • Accepted : 2009.04.21
  • Published : 2009.06.10
Download PDF
⟨ Previous 2O3 at High Temperatures (≥1600 ℃)" href="/article/JAKO200910103426047.page"> Next ⟩

Abstract

Synthesis of porous $CeO_2$ particles was investigated using various ionic liquids (ILs) as an effective template. The pore structure and crystalline phase of $CeO_2$ particles was affected significantly by the composition of ionic liquids. The strength of the hydrogen bonds on the anion part of ionic liquid was an essential factor to form the pore architecture of $CeO_2$ particles. Moreover, the length of alkyl group on the cation part of ionic liquid determined the pore size and surface area of $CeO_2$ particles. Among the ionic liquids, it was found that 1-Buthyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) was the most effective ionic liquid to synthesize the porous $CeO_2$ particle.

다양한 조성의 이온성액체(Ionic liquid, ILs)를 사용하여 다공성 산화세륨 입자를 제조하였다. 이온성액체의 조성에 따라서 제조된 산화세륨 입자의 세공구조 및 결정의 모양이 달라지는 것을 관찰하였다. 이온성액체에서 음이온의 수소결합력 세기는 산화세륨의 세공을 형성하는데 결정적인 요인으로 작용하며, 양이온인 알킬 그룹의 길이에 따라 산화세륨 입자의 세공 크기 및 비표면적이 변하는 것을 확인할 수 있었다. 여러 가지 이온성액체 중에서 1-Buthyl-3-methylimidazolium hexafluorophosphate가 다공성 산화세륨 입자를 제조하는데 가장 효과적이었다.

Keywords

References

  1. S. Tsunekawa, R. Sahara, Y. Kawazoe, and A. Kasuya, Mater. Trans., 41, 1104 (2000) https://doi.org/10.2320/matertrans1989.41.1104
  2. A. Trovarelli, C. de Leitenburg, M. Boaro, and G. Dolcetti, Catal. Today., 50, 353 (1999) https://doi.org/10.1016/S0920-5861(98)00515-X
  3. H. Yahiro, Y. Baba, K. Eguchi, and H. Arai, J. Electrochem. Soc., 135, 2077 (1988) https://doi.org/10.1149/1.2096212
  4. E. Bekyarova, P. Fornasiero, J. Kaspar, and M. Graziani, Catal. Today., 45, 179 (1998) https://doi.org/10.1016/S0920-5861(98)00212-0
  5. X. J. Yu, P. B. Xie, and Q. D. Su, Phys. Chem. Chem. Phys., 3, 5266 (2001) https://doi.org/10.1039/b105890h
  6. N. Izu, W. Shin, N. Murayama, and S. Kanzaki, Sens. Actuator B: Chem., 87, 95 (2002) https://doi.org/10.1016/S0925-4005(02)00224-1
  7. S. H. Lee, Z. Y. Lu, S. V. Babu, and E. Matijevic, J. Mater. Res., 17, 2744 (2002) https://doi.org/10.1557/JMR.2002.0396
  8. Y. Liu, Z. Lockman, A. Aziz, and D. J. MacManus, J. Phys. Condens. Mater., 20, 765 (2008)
  9. M. Alifanti, B. Baps, N. Blangenois, J. Naud, P. Grange, and B. Delmon, Chem. Mater., 15, 395 (2003) https://doi.org/10.1021/cm021274j
  10. C. Laberty-Robert, J. W. Long, E. M. Lucas, K. A. Pettigrew, R. M. Stroud, M. S. Doescher, and D. R. Rolison, Chem. Mater., 18, 50 (2006) https://doi.org/10.1021/cm051385t
  11. M. Hirano and M. Inagaki, J. Mater. Chem., 10, 473 (2000) https://doi.org/10.1039/a907510k
  12. M. Hirano and E. Kato, J. Am. Ceram. Soc., 79, 777 (1996) https://doi.org/10.1111/j.1151-2916.1996.tb07943.x
  13. M. Hirano, Y. Fukuda, H. Iwata, Y. Hotta, and M. Inagaki, J. Am. Ceram. Soc., 83, 1287 (2000) https://doi.org/10.1111/j.1151-2916.2000.tb01371.x
  14. Y. Zhou and M. N. Rahaman, Acta Mater., 45, 3635 (1997) https://doi.org/10.1016/S1359-6454(97)00052-9
  15. X. Chu, W. Chung, and L. D. Schmidt, J. Am. Ceram. Soc., 76, 2115 (1993) https://doi.org/10.1111/j.1151-2916.1993.tb08344.x
  16. P. L. Chen and I. W. Chen, J. Am. Ceram. Soc., 76, 1577 (1993) https://doi.org/10.1111/j.1151-2916.1993.tb03942.x
  17. L. Madler, W. J. Stark, and S. E. Pratsinis, J. Mater. Res., 17, 1356 (2002) https://doi.org/10.1557/JMR.2002.0202
  18. P. Wasserscheid and W. Keim, Angew. Chem. Int. Ed., 39, 3773 (2000) https://doi.org/10.1002/1521-3773(20001103)39:21<3772::AID-ANIE3772>3.0.CO;2-5
  19. T. Welton, Chem. Rev., 99, 2071 (1999) https://doi.org/10.1021/cr980032t
  20. K. S. W. Sing, D. H. Everett, R. A. W. Haul, L. Moscow, R. A. Pierotti, J. Rouquerol, and T. Siemieniewska, Pure Appl. Chem., 57, 603 (1985) https://doi.org/10.1351/pac198557040603
  21. L. Z. Wang, S. Tomura, M. Maeda, F. Ohashi, K. Inukai, and M. Suzuki, Chem. Lett., 12, 1414 (2000)