Extremely high surface area of ordered mesoporous MCM-41 by atrane route

Thanabodeekij, N.; Sadthayanon, S.; Gülari, Erdogan; Wongkasemjit, Sujitra

doi:10.1016/j.matchemphys.2005.09.002

Cited by 21 publications

(23 citation statements)

References 24 publications

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“…Generally, the XRD pattern of MCM-41 shows the diffraction lines of (100), (110) and (200), indexing to the hexagonal regularity of MCM-41. [12] Those three characteristic lines were also observed in our study of the Fe-MCM-41 samples. Moreover, DR-UV, employed to determine the site of the iron and also the presence of the Fe extra-framework, showed that all samples exhibited a peak at around 240-300 nm, similar to ferrisilicate containing tetrahedrally coordinated iron species.…”

Section: Fe-mcm-41 Catalystsupporting

confidence: 76%

“…The composition of the reactants followed the previous study on the synthesis of extremely high surface area MCM-41. [12] A 1.29 g aliquot of silatrane precursor was added to a solution containing y% of FeCl 3 , 182 g of hexadecyltrimethyl ammonium bromide (CTAB, Aldrich Chemical Co.), 0.04 g of sodium hydroxide (NaOH, Aldrich Chemical Co.) and 2.09 g of TEA. A 6.48 g aliquot of water was then added with vigorous stirring.…”

Section: Experimental Synthesis Methodsmentioning

confidence: 99%

“…Recently, Wongkasemjit's method using CTAB as a template and a silatrane precursor synthesized from an inexpensively starting material, www.interscience.wiley.com/journal/aoc SiO 2 , successfully provided extremely high surface area MCM-41. [12] Fe-MCM-41 was synthesized by using CTAB as a template. [12] Following this method, a high-quality Fe-MCM-41, having a remarkable surface area up to ∼1800 m 2 g −1 at 1% iron loading, was satisfyingly synthesized at lower reaction temperature and shorter aging time.…”

Section: Fe-mcm-41 Catalystmentioning

confidence: 99%

“…[12] Fe-MCM-41 was synthesized by using CTAB as a template. [12] Following this method, a high-quality Fe-MCM-41, having a remarkable surface area up to ∼1800 m 2 g −1 at 1% iron loading, was satisfyingly synthesized at lower reaction temperature and shorter aging time. Generally, the XRD pattern of MCM-41 shows the diffraction lines of (100), (110) and (200), indexing to the hexagonal regularity of MCM-41.…”

Section: Fe-mcm-41 Catalystmentioning

confidence: 99%

“…[9] Effect of temperature It is known that temperature affects liquid crystal formation. [12] When increasing the mixing temperature from 40 to 100…”

Section: Fe-mcm-41 Catalystmentioning

confidence: 99%

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Synthesis of Fe‐MCM‐41 from silatrane and FeCl₃ via sol–gel process and its epoxidation acivity

Thitsartarn¹,

Gülari²,

Wongkasemjit³

2008

Applied Organom Chemis

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An iron-containing mesoporous molecular sieve, or Fe-MCM-41, was successfully synthesized the via sol-gel technique using silatrane and FeCl 3 as the silicon and iron sources, and was characterized using various techniques. Many factors were investigated, namely, reaction temperature and time, calcination rate, and iron amount in the reaction mixture. It was found that the optimum conditions in which to synthesize Fe-MCM-41 was to carry out the reaction at 60• C for 7 h using a 1 • C min −1 calcination rate and a 550• C calcination temperature. The catalytic activity and selectivity of styrene epoxidation using hydrogen peroxide showed that the selectivity of the styrene oxide reached 65% at a styrene conversion of 22% over the 1%wt catalyst.

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Section: Fe-mcm-41 Catalystsupporting

confidence: 76%

Section: Experimental Synthesis Methodsmentioning

confidence: 99%

Section: Fe-mcm-41 Catalystmentioning

confidence: 99%

Section: Fe-mcm-41 Catalystmentioning

confidence: 99%

“…[9] Effect of temperature It is known that temperature affects liquid crystal formation. [12] When increasing the mixing temperature from 40 to 100…”

Section: Fe-mcm-41 Catalystmentioning

confidence: 99%

See 3 more Smart Citations

Synthesis of Fe‐MCM‐41 from silatrane and FeCl₃ via sol–gel process and its epoxidation acivity

Thitsartarn¹,

Gülari²,

Wongkasemjit³

2008

Applied Organom Chemis

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A travel though the atrane route, a versatile tool for the materials soft‐synthesis: A twenty‐five years perspective

Garrido,

Benítez,

Ros‐Lis

et al. 2024

Nano Select

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The use of triethanolamine in the preparation of materials has been a fertile area of research during the last decades. It is used in sol‐gel synthesis because of its ability to regulate pH, act as a structure‐directing agent, and form atrane complexes with a wide variety of elements. The atranes harmonize the hydrolysis and condensation processes of inorganic species with their interaction with surfactant molecules or micelles for the obtention of homogeneous materials. This review describes the basic principles of the formation of atrane complexes and their use in material synthesis, followed by a compilation of the main examples found in the bibliography. These materials include pure and doped silicas by using micelles as porogen species (MCM‐41, SBA‐15, UVM‐7, etc.), or without using template agents (TUD‐1, UVM‐11, etc.), non‐silica oxides (Al2O3, TiO2, ZrO2, etc.), mesoporous phosphates and phosphonates, zeotypes (zeolites, aluminophosphates or silicoaluminophosphates, and layered double hydroxides. The atrane route shows a versatile approach for the preparation of these materials with up to three elements simultaneously. The focus of the review centers on the synthesis of the materials and the discussion of their main applications. These examples enrich with a discussion about the future perspective of the topic.

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A novel room temperature synthesis of mesoporous SBA-15 from silatrane

2010

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Extremely high surface area of ordered mesoporous MCM-41 by atrane route

Cited by 21 publications

References 24 publications

Synthesis of Fe‐MCM‐41 from silatrane and FeCl₃ via sol–gel process and its epoxidation acivity

Synthesis of Fe‐MCM‐41 from silatrane and FeCl₃ via sol–gel process and its epoxidation acivity

A travel though the atrane route, a versatile tool for the materials soft‐synthesis: A twenty‐five years perspective

A novel room temperature synthesis of mesoporous SBA-15 from silatrane

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Extremely high surface area of ordered mesoporous MCM-41 by atrane route

Cited by 21 publications

References 24 publications

Synthesis of Fe‐MCM‐41 from silatrane and FeCl3 via sol–gel process and its epoxidation acivity

Synthesis of Fe‐MCM‐41 from silatrane and FeCl3 via sol–gel process and its epoxidation acivity

A travel though the atrane route, a versatile tool for the materials soft‐synthesis: A twenty‐five years perspective

A novel room temperature synthesis of mesoporous SBA-15 from silatrane

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Product

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Synthesis of Fe‐MCM‐41 from silatrane and FeCl₃ via sol–gel process and its epoxidation acivity

Synthesis of Fe‐MCM‐41 from silatrane and FeCl₃ via sol–gel process and its epoxidation acivity