Mesoporous material

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Electron microscopy images of nitrogen-containing ordered mesoporous carbon (N-OMC) taken (a) along and (b) perpendicular to the channel direction.[1]

A mesoporous material is a material containing pores with diameters between 2 and 50 nm.

Porous materials are classified into several kinds by their size. According to IUPAC notation,[2] microporous materials have pore diameters of less than 2 nm and macroporous materials have pore diameters of greater than 50 nm; the mesoporous category thus lies in the middle.

Typical mesoporous materials include some kinds of silica and alumina that have similarly-sized fine mesopores. Mesoporous oxides of niobium, tantalum, titanium, zirconium, cerium and tin have also been reported. According to the IUPAC, a mesoporous material can be disordered or ordered in a mesostructure.

A procedure for producing mesoporous materials (silica) was patented around 1970.[3][4][5] It went almost unnoticed[6] and was reproduced in 1997.[7] Mesoporous silica nanoparticles (MSNs) were independently synthesized in 1990 by researchers in Japan.[8] They were later produced also at Mobil Corporation laboratories [9] and named Mobil Crystalline Materials, or MCM-41.[10]

Since then, research in this field has steadily grown. Notable examples of prospective applications are catalysis, sorption, gas sensing, ion exchange, optics, and photovoltaics.

See also[edit]

References[edit]

  1. ^ Guo, M.; Wang, H.; Huang, D.; Han, Z.; Li, Q.; Wang, X.; Chen, J. (2014). "Amperometric catechol biosensor based on laccase immobilized on nitrogen-doped ordered mesoporous carbon (N-OMC)/PVA matrix". Science and Technology of Advanced Materials 15 (3): 035005. doi:10.1088/1468-6996/15/3/035005.  edit
  2. ^ Rouquerol, J.; Avnir, D.; Fairbridge, C. W.; Everett, D. H.; Haynes, J. M.; Pernicone, N.; Ramsay, J. D. F.; Sing, K. S. W.; Unger, K. K. (1994). "Recommendations for the characterization of porous solids (Technical Report)". Pure and Applied Chemistry 66 (8). doi:10.1351/pac199466081739.  edit
  3. ^ Chiola, V.; Ritsko, J. E. and Vanderpool, C. D. "Process for producing low-bulk density silica." Application No. US 3556725D A filed on 26-Feb-1969; Publication No. US 3556725 A published on 19-Jan-1971
  4. ^ "Porous silica particles containing a crystallized phase and method" Application No. US 3493341D A filed on 23-Jan-1967; Publication No. US 3493341 A published on 03-Feb-1970
  5. ^ "Process for producing silica in the form of hollow spheres"; Application No. US 342525 A filed on 04-Feb-1964; Publication No. US 3383172 A published on 14-May-1968
  6. ^ Xu, Ruren; Pang, Wenqin and Yu, Jihong (2007). Chemistry of zeolites and related porous materials: synthesis and structure. Wiley-Interscience. p. 472. ISBN 0-470-82233-3. 
  7. ^ Direnzo, F; Cambon, H; Dutartre, R (1997). "A 28-year-old synthesis of micelle-templated mesoporous silica". Microporous Materials 10 (4–6): 283. doi:10.1016/S0927-6513(97)00028-X. 
  8. ^ Yanagisawa, Tsuneo; Shimizu, Toshio; Kuroda, Kazuyuki; Kato, Chuzo (1990). "The preparation of alkyltrimethylammonium-kanemite complexes and their conversion to microporous materials". Bulletin of the Chemical Society of Japan (free download) 63 (4): 988. doi:10.1246/bcsj.63.988. 
  9. ^ Beck, J. S.; Vartuli, J. C.; Roth, W. J.; Leonowicz, M. E.; Kresge, C. T.; Schmitt, K. D.; Chu, C. T. W.; Olson, D. H.; Sheppard, E. W. (1992). "A new family of mesoporous molecular sieves prepared with liquid crystal templates". Journal of the American Chemical Society 114 (27): 10834. doi:10.1021/ja00053a020.  edit
  10. ^ Trewyn, B. G.; Slowing, I. I.; Giri, S.; Chen, H. T.; Lin, V. S. -Y. (2007). "Synthesis and Functionalization of a Mesoporous Silica Nanoparticle Based on the Sol–Gel Process and Applications in Controlled Release". Accounts of Chemical Research 40 (9): 846. doi:10.1021/ar600032u. PMID 17645305.  edit