DOI QR코드

DOI QR Code

Synthesis of Mesoporous Transition Metal Carbon Using the Mesoporous Silica

메조포러스실리카를 이용한 메조포러스 전이금속체 합성

  • Han, Seung-Dong (Department of Chemical Engineering, Hanseo University) ;
  • Jeong, Ui-Min (Department of Chemical Engineering, Hanseo University) ;
  • Lee, Joo-Bo (Department of Chemical Engineering, Hanseo University) ;
  • Peng, Mei Mei (Department of Chemical Engineering, Hanseo University) ;
  • Kim, Dae-Kyung (Department of Chemical Engineering, Hanseo University) ;
  • Jang, Hyun-Tae (Department of Chemical Engineering, Hanseo University)
  • Received : 2012.01.25
  • Accepted : 2012.04.12
  • Published : 2012.04.30

Abstract

In this study, synthesis of mesoporous silica such as, SBA-15, MCM-41, MCM-48, KIT-6 according to various experimental conditions. The CMK(Carbon Mesoporous Korea) was synthsized by various mesoporous silica. Finally, the mesoporous transition metal structure synthesized using CMK structure. Nitrogen adsorption/ desorption, SEM, low angle X-ray diffraction were carried for analysis of each sample. The optimum synthesis condition of mesoporous transition metal structure derived from characteristic analysis. The SBA-15 is best precursor for synthesis of mesoporous transition metal structure. The surface area of copper mesorporous structure from CMK(SBA-15) is $225m^2/g$, pore diameter is 2.91nm by BET analysis.

본 연구는 SBA-15, MCM-41, MCM-48, KIT-6와 같은 메조포러스실리카를 다양한 조건에서 합성하고 이를 이용하여 CMK(Carbon Mesoporous Korea)를 합성한다. 합성된 CMK를 이용하여 메조포러스 구조의 전이금속체를 제조하였다. 각각의 메조포러스실리카에 따라 합성된 CMK의 특성을 분석하고 이를 이용하여 합성된 메조포러스 전이금속체의 특성을 질소흡탈착 등온선, SEM, 저각 X-선 회절분석으로 분석하므로써 최적의 메조포러스 전이금속체의 합성조건을 도출하였다, 실험 결과 가장 우수한 특성을 나타내는 메조실리카는 SBA-15이며, BET 분석으로 SBA-15로부터 합성된 메조포러스 구리 분자체의 비표면적은 $225m^2/g$, 기공크기는 2.91nm로 나타났다.

Keywords

References

  1. Bain, S.W., Ma, Z., Cui, Z.M., Zhang, L.S., Niu, F., Song, W.G., "Synthesis of micrometer-sized nanostructured magnesium oxide and its high catalytic activity in the Claisen−Schmidt condensation reaction", J. of Phys. Chem. C., 112(30), 11340-11344, 2008. https://doi.org/10.1021/jp802863j
  2. Climent, M.J., Corma, A., Iborra, S., Primo, J., "Base catalysis for fine chemicals production: Claisen-Schmidt condensation on zeolites and hydrotalcites for the production of chalcones and flavanones of pharmaceutical interest", J. Catal. 151, 60-66, 1995. https://doi.org/10.1006/jcat.1995.1008
  3. Kim(a), J.M., Stucky, G.D., "Synthesis of highly ordered mesoporous silica materials using sodium silicate and amphiphilic block copolymers", Chem. Commun. 1159-1160, 2000.
  4. Endud, S., Wong, K.L., "Mesoporous silica MCM-48 molecular sieve modified with SnCl2 in alkaline medium for selective oxidation of alcohol", Micropor. Mesopor. Mater. 101, 256-263, 2007. https://doi.org/10.1016/j.micromeso.2006.12.029
  5. Jang, H.T., Park, Y.K., Ko, Y. S., Lee, J.Y., Bhagiyalakshmi, M., "Highly siliceous MCM-48 from rick husk ash for CO2 adsorption", Int. J. Greenh. Gas. Con. 3, 545-549, 2009. https://doi.org/10.1016/j.ijggc.2009.02.008
  6. Jun, S., Joo, S.H., Ryoo, R., Kruk, M., Jaroniec, M., Liu, Z., Ohsuna, T., Terasaki, O., "Synthesis of new, nanoporous carbon with hexagonally ordered mesostructure", J. Am. Chem. Soc. 122, 10712-10713, 2000. https://doi.org/10.1021/ja002261e
  7. Zhao, D., Feng, J., Huo, Q., Melosh, N., Fredrickson, G.H., Chmelka, B.F., Stucky, G.D., "Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores", Science 279, 548-552, 1998. https://doi.org/10.1126/science.279.5350.548
  8. Ryong, R., Sang, H.J., Michal, K., Mietek J., 2001. "Ordered mesoporous carbons", Adv. Mater. 13, 677-681. https://doi.org/10.1002/1521-4095(200105)13:9<677::AID-ADMA677>3.0.CO;2-C
  9. Roggenbuck, J., Tiemann, M., "Ordered mesoporous magnesium oxide with high thermal stability synthesized by exotemplating using CMK-3 carbon", J. Am. Chem. Soc. 127, 1096-1097, 2005. https://doi.org/10.1021/ja043605u
  10. Roggenbuck, J., Koch, G., Tiemann, "M., Synthesis of mesoporous magnesium oxide by CMK-3 carbon structure replication", Chem. Mater. 18, 4151-4156, 2006. https://doi.org/10.1021/cm060740s
  11. Vinu, A., Murugesan, V., Tangermann, O., Hartmann, M., "Adsorption of cytochrome con mesoporous molecular sieves: Influence of pH, pore diameter, and aluminum incorporation", Chem. Mater. 16, 3056-3065, 2004. https://doi.org/10.1021/cm049718u
  12. Kumar, A., Kumar J., "Defect and adsorbate induced infrared modes in sol-gel derived magnesium oxide nano-crystallites", Solid State Commun. 147, 405-408, 2008. https://doi.org/10.1016/j.ssc.2008.06.014