Designed Synthesis of Mesoporous Molecular Sieve Systems Using Surfactant-Directing Agents

Vartuli, J.C.; Kresge, Charles T.; Roth, Wiesław J.; McCullen, S.B.; Beck, Jeffrey S.; Schmitt, Kirk D.; Leonowicz, M. E.; Lutner, J.D.; Sheppard, E. W.

doi:10.1016/b978-012508460-4/50002-4

Cited by 18 publications

(16 citation statements)

References 19 publications

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“…[12] Using the same methodology, triblock-copolymer-templated materials with much larger pores have also been synthesized in acidic systems, for example the 2D hexagonal (P6mm) SBA-15 [13] and cubic cage (Im-3m) SBA-16 structures. [12] Several aspects of the ordered mesoporous oxides have been reviewed by Brinker (recent advances in porous inorganic materials), [14] Vartuli et al (synthesis of the M41S family), [15] Stucky et al (biomimetic synthesis of mesoporous materials), [16] Raman et al (porous silicates templated by surfactants and organosilicate precursors), [17] and Guliants et al (mesoporous inorganic films and membranes). [18] Several synthetic strategies for the molecular design of mesoporous oxides, including those with non-siliceous compositions, have been recently reviewed by SolerIllia et al [19] However, thermal stability considerations for mesostructured metal oxides were not discussed in those reviews.…”

Section: Microreviewmentioning

confidence: 98%

Ordered Meso‐ and Macroporous Binary and Mixed Metal Oxides

2004

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A critical review is provided of the principles guiding the synthesis of meso-and macroporous metal oxides on multiple length scales in the presence of surfactant mesophases and colloidal arrays of monodisperse spheres, and correlations between the synthesis conditions and the properties of the resulting meso-and macroporous oxides, such as thermal stability, pore structure, elemental and nanophase compositions of the inorganic wall, etc. The thermal stability of mesostructured metal-oxide phases, in particular, is discussed in terms of charge-matching at the organic-inorganic interface, the strength of interactions between inorganic species and surfactant headgroups, the flexibility of the M-O-M bond angles in the constituent metal oxides, the Tammann temperature of the metal oxide, and the occurrence of redox reactions in the metal-oxide wall. The ordered meso-and

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Section: Microreviewmentioning

confidence: 98%

Ordered Meso‐ and Macroporous Binary and Mixed Metal Oxides

2004

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“…In addition, the tortuosity of MCM-48 is larger than that of MCM-41 because MCM-48 has a significantly more complex structure than the straightforward case of hexagonal MCM-41. It is known that MCM-41 has regular one-dimensional, hexagonal array of uniform channels with each pore surrounded by six neighbors; MCM-48 has a cubic pore system, which is indexed in the space group Ia3d (Vartuli et al, 1996). Therefore, the effective diffusion coefficient (D e ) of CrO 2 Cl 2 in MCM-48 should be much lower than that in MCM-41 because of the smaller pore volume, smaller pore radius and larger tortuosity of MCM-48 (compared to MCM-41).…”

Section: Dh*mentioning

confidence: 99%

Ethylene polymerization over Cr/MCM-41 and Cr/MCM-48 catalysts prepared by chemical vapor deposition

Weng

2009

Journal of the Taiwan Institute of Chemical Engineers

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“…MCM-41'e organik fonksiyonel grupların, modifikasyon veya fonksiyonelleştirme sonucu eklenmesi ile gözenek boyutunun ayarlanabilmesi sayesinde, MCM-41 işe özel adsorban dizaynında ideal bir aday olmuştur. Böylece oldukça geniş deneysel çalışma alanlarında kullanılmaktadırlar [25][26][27][28].…”

Section: Introductionunclassified

Amin Grupları ile Fonksiyonelleştirilmiş MCM-41 Mezogözenekli Silika Üzerine CO2 Adsorpsiyonu

Yılmaz

2017

SDÜ Fen Bil Enst Der

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Özet: Bu çalışmada, saf silika kaynağından üretilen mezogözenekli silika MCM-41'in yüzeyi aşılama yöntemiyle amin grupları ile fonksiyonelleştirilmiştir. Fonksiyonelleştirilen ürünün karakterizasyonu X-ışınları difraktometresi (XRD), termogravimetri/diferansiyel termal analiz (TG/DTA), Fourier dönüşümlü infrared spektroskopisi (FTIR) ve Brunauer-Emmett-Teller (BET) cihazında gerçekleştirilmiştir. Fonksiyonelleştirilen ve fonksiyonelleştirilmemiş MCM-41 adsorbanlarının CO2 adsorpsiyon kapasiteleri 25, 75 ve 100°C'de TG/DTA cihazı ile belirlenmiştir. Sonuç olarak, fonksiyonelleştirilen MCM-41'in daha yüksek CO2 adsorpsiyon kapasitesine sahip olduğu görülmüştür. CO2 Adsorption on Functionalized MCM-41 Mesoporous Silica with Amine GroupsKeywords MCM-41, CO2, Adsorption, Grafting, Amine group Abstract: In this study, the surface of mesoporous silica MCM-41 which synthesized from pure silica was functionalized with amine group by grafting. The functionalized sample was characterized by X-ray powder diffractometer (XRD), thermogravimetry/differential thermal analysis (TG/DTA) and Fourier transform infrared spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET). The CO2 adsorption capacity of the functionalized and non-functionalized MCM-41 adsorbents was determined at 25, 75 and 100°C by TG/DTA equipment. As a result, it was seen that the functionalized MCM-41 has higher adsorption capacity.

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Designed Synthesis of Mesoporous Molecular Sieve Systems Using Surfactant-Directing Agents

Cited by 18 publications

References 19 publications

Ordered Meso‐ and Macroporous Binary and Mixed Metal Oxides

Ordered Meso‐ and Macroporous Binary and Mixed Metal Oxides

Ethylene polymerization over Cr/MCM-41 and Cr/MCM-48 catalysts prepared by chemical vapor deposition

Amin Grupları ile Fonksiyonelleştirilmiş MCM-41 Mezogözenekli Silika Üzerine CO2 Adsorpsiyonu

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