Smart heating profiles for the synthesis of benzene bridged periodic mesoporous organosilicas

Smeulders, Geert; Oers, Cynthia J. Van; Havenbergh, Kristof Van; Houthoofd, Kristof; Mertens, Myrjam; Martens, Johan A.; Bals, Sara; Maes, Bert U. W.; Meynen, Vera

doi:10.1016/j.cej.2011.09.116

Cited by 6 publications

(9 citation statements)

References 25 publications

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“…PMOs can be obtained by self‐assembly of bridged silsesquioxanes in the presence of the structure‐directing agents (e.g., surfactants, block copolymers). For instance, microwave heating was shown to be applicable to produce different: benzene‐bridged, [ 46 ] ethane and disulfide‐bridged, [ 47 ] or tetrakis(4‐carboxyphenyl)porphyrin‐silsesquioxane‐bridged [ 48 ] mesoporous organosilicas.…”

Section: Microwave Synthesis Of Nanoporous Materials and Their Applicationsmentioning

confidence: 99%

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Advances in Microwave Synthesis of Nanoporous Materials

et al. 2021

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Usually, porous materials are synthesized by using conventional electric heating, which can be energy‐ and time‐consuming. Microwave heating is commonly used in many households to quickly heat food. Microwave ovens can also be used as powerful devices in the synthesis of various porous materials. The microwave‐assisted synthesis offers a simple, fast, efficient, and economic way to obtain many of the advanced nanomaterials. This review summarizes the recent achievements in the microwave‐assisted synthesis of diverse groups of nanoporous materials including silicas, carbons, metal–organic frameworks, and metal oxides. Microwave‐assisted methods afford highly porous materials with high specific surface areas (SSAs), e.g., activated carbons with SSA ≈3100 m2 g−1, metal–organic frameworks with SSA ≈4200 m2 g−1, covalent organic frameworks with SSA ≈2900 m2 g−1, and metal oxides with relatively small SSA ≈300 m2 g−1. These methods are also successfully implemented for the preparation of ordered mesoporous silicas and carbons as well as spherically shaped nanomaterials. Most of the nanoporous materials obtained under microwave irradiation show potential applications in gas adsorption, water treatment, catalysis, energy storage, and drug delivery, among others.

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Section: Microwave Synthesis Of Nanoporous Materials and Their Applicationsmentioning

confidence: 99%

“…Porous silicas obtained via microwave‐assisted methods with their SSA, and potential applications are summarized in Table 3 . [ 24–63 ]…”

Section: Microwave Synthesis Of Nanoporous Materials and Their Applicationsmentioning

confidence: 99%

Advances in Microwave Synthesis of Nanoporous Materials

et al. 2021

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“…Benzene bridged PMOs were prepared under microwave-assisted conditions [ 69 ]. Authors found that high heating rates are extremely important to produce well-structured and uniform materials.…”

Section: Microwave-assisted Synthesis Of Silica Mesoporous Materiamentioning

confidence: 99%

Recent Progress of Microwave-Assisted Synthesis of Silica Materials

Greñu

Reyes²,

Costero

et al. 2020

Nanomaterials

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Microwaves are a source of energy of great interest for chemical synthesis. Among nanomaterials, few are as versatile as silica—it forms mesoporous materials and nanoparticles, it can be incorporated as shells or loaded in composites, it can also be functionalized. Despite the relevant properties of silica, and the advantages of the use of microwave as energy source, its use in silica-based materials is not frequent. We report herein a compilation of the research results published in the last 10 years of microwave assisted synthesis of silica based materials. This review includes examples of mesoporous materials for waste removal, catalysis, drug release, and gas adsorption applications, together with examples based in the optimization of the synthesis conditions. In the case of non-porous materials, examples of analytical applications, coating of metallic nanoparticles, and SiOx-C materials have been collected.

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“…The PMO was synthesized according to the procedure described in the literature, 3,4,19,22 i.e., by condensation in basic medium of the 1,4-bis(triethoxysilyl)benzene (BTEB) precursor 23 in the presence of supra-molecular structure agent octadecyltrimethylammonium bromide (ODTMA, Aldrich). During the hydrothermal step, the autoclave was introduced in an oven preheated to 200 C during 40 min, and then transferred to another oven at 100 C, where it stayed for 23 h and 20 min.…”

Section: Synthesismentioning

confidence: 99%

“…Additionally, when compared with the conventional synthesis, the usage of microwave irradiation promoted narrower distribution of pore sizes, higher surface area and larger pore volumes. 19 Recently, we found that faster N-alkyl functionalization of the NH 2 -PMO at 170…”

mentioning

confidence: 99%