Bicontinuous mesoporous carbon thin films via an order–order transition

Deng, Guodong; Zhang, Yuanzhong; Ye, Changhuai; Qiang, Zhe; Stein, Gila E.; Cavicchi, Kevin A.; Vogt, Bryan D.

doi:10.1039/c4cc02471k

Cited by 21 publications

(37 citation statements)

References 33 publications

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“…The mesopore architecture can also be influenced by double solvent vapor annealing and post thermal annealing process that induces an order–order transition from parallel cylinder arrangements to a gyroid structure as reported by Vogt and co‐workers (Figure D) . Another important aspect is that thin films of soft‐templated OMCs can be synthesized on nanostructured substrates.…”

Section: Controlled Synthesis Of Nanoporous Carbon Thin Films and Appmentioning

confidence: 80%

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Bringing Porous Organic and Carbon‐Based Materials toward Thin‐Film Applications

Wuttke

Medina

Rotter

et al. 2018

Adv Funct Materials

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Porous materials have attracted tremendous scientific and industrial interest due to their broad commercial applicability. However, some applications require that these materials are deposited on surfaces to create thin films. Here, the recent progress of new porous thin-film material classes is described: porous organic molecular materials, porous organic polymers, covalent organic frameworks, and nanoporous carbon. In each case, the state of the art and current barriers in their thin-film fabrication, as well as intrinsic material advantages that are suited for different applications are presented. By highlighting the unique structural characteristics and properties of these materials, it is hoped that increased research development and industrial interest will be fostered, which will lead to new methods of thin-film synthesis and consequently to new applications. Figure 2. 1) Structure, crystal packing and BET surface area of triptycene trisbenzimidazolone (TTBI), 2) structure and BET surface area of OMIM-10-14, 3) structure of Doonan cage C1 and BET surface area of the two different crystalline polymorphs obtained by slow and fast precipitation, 4) structure and BET surface area of a triptycene-based cage, 5) structure of Cooper Cage CC3 (cyclohexyl vertices). A) Schematic low-energy crystal packings for CC1 (hydrogens on vertices; formally nonporous), CC2 (methyl vertices; 1D external pore channels), and CC13 (dimethyl vertices; 2D layered pore structure with formally disconnected voids). As such, small structural changes to the vertex groups lead to three quite different crystal packings and pore topologies for the α polymorphs shown here (orange = disconnected voids; yellow = interconnected pores). Crystallization in the presence of 1,4-dioxane causes pseudoisostructural window-to-window packing for all three cage modules, causing the materials to mimic the 3D diamondoid pore structure of CC3 shown in D. B) N 2 sorption isotherms (77 K) for homochiral CC3 produced by freeze-drying (green diamonds, 6 repetitions), vacuum evaporation (blue triangles), standard reaction (black squares), and slow crystallization (red circles, 6 repetitions). C,D) Molecular simulation of amorphous packing (top) and crystalline structure (bottom) of CC3, with the Connolly surface probed by N 2 molecules (kinetic diameter of 3.64 Å) shown in blue, and average BET surface area extracted from the isotherms shown in (B). 1) Reproduced with permission. [58] Figure 12. A) CDC thin-film synthesis and EDLC test cell preparation. Titanium is extracted from titanium carbide as TiCl 4 , forming a porous carbon film. Two carbide plates with the same CDC coating thickness are placed face to face and separated by a polymer fabric soaked with electrolyte. The SEM image (left) shows a representative image of a CDC/TiC interface with a good film adhesion. Reproduced with permission. [187]

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Section: Controlled Synthesis Of Nanoporous Carbon Thin Films and Appmentioning

confidence: 80%

“…D) AFM phase images of carbon thin films produced with different amounts of resolution after exposure to methyl ethyl ketone using a single solvent vapor annealing process. Reproduced with permission . Copyright 2014, the Royal Society of Chemistry.…”

Section: Controlled Synthesis Of Nanoporous Carbon Thin Films and Appmentioning

confidence: 99%

Bringing Porous Organic and Carbon‐Based Materials toward Thin‐Film Applications

Wuttke

Medina

Rotter

et al. 2018

Adv Funct Materials

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“…Modifications in the source of the silica, as well as in the formation and organization stages of these materials, are also documented in the literature [14,[16][17][18]. Studies demonstrating modifications in the synthesis parameters and obtaining materials with different properties are also reported for other types of materials, such as ordered mesoporous carbon (OMC) [19,20]. Such studies show the importance of analyzing the synthesis parameters and how they interfere in the final material.…”

Section: Introductionmentioning

confidence: 93%

Influence of Synthesis Parameters in Obtaining KIT-6 Mesoporous Material

et al. 2018

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In the present work, modifications were made in the typical synthesis of KIT-6 mesoporous material. The molar ratio of P123 and its dissolution time, the type of alcohol, the aging time, and the heat treatment time were varied. The materials obtained were characterized by X-ray diffraction (XRD), thermogravimetry and differential thermogravimetry (TG/DTG), Fourier-transform infrared spectroscopy (FTIR), adsorption and desorption of N 2 and transmission electron microscopy (TEM). It was observed that the modifications interfered directly in the ordered structure of materials, displaying materials with cubic structures Ia3d (KIT-6 mesoporous material) and hexagonal structures P6mm, (SBA-15 mesoporous material). The type of alcohol probably acts on generation of the micelle, influencing the formation of the porous system and ordered structure. The results obtained indicate that the cubic structure of KIT-6 can be formed with a reduction of 30% in the P123 concentration, and decreases of 2, 6 and 12 h in times of P123 dissolution, aging and heat treatment, respectively. The modifications carried out in the synthesis procedure have resulted in ir being possible to employ materials with different characteristics, such as mesoscopic ordering and textural properties, in applications in the areas of catalysis and adsorption.

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“…Lots of effects on the formation of ordered mesoporous silica have been studied extensively such as by changing the counter anion [ 18 – 21 ] or by the variation of the solvent [ 22 ]. However, only very few papers have been done in the transformation of mesostructure of OMCs [ 23 , 24 ]. Until very recently, we reported an intergrown p6mm and cubic Fd3m of OMCs induced by various ratios of ethanol/hexane [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Structure Evolution of Ordered Mesoporous Carbons Induced by Water Content of Mixed Solvents Water/Ethanol

Liang

Yan

et al. 2016

Nanoscale Res Lett

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In this work, mesostructure evolution of ordered mesoporous carbons (OMCs) from the 2-D hexagonal (space group p6mm) to the discontinuous cubic , then towards the face-centered cubic lattice , and finally, to the simple cubic Pm3n is achieved by simply adjusting the cosolvent water content of the mixed solvents water/ethanol in the presence of a reverse nonionic triblock copolymer and low molecular resin by evaporation-induced self-assembly method. Experimental results demonstrate that both the cosolvent and the reverse triblock copolymer play a key role in the mesophase transitions of OMCs. Furthermore, the OMCs with Pm3n symmetry are reported for the first time. Finally, the mechanism of mesostructure transition was discussed and proposed.Electronic supplementary materialThe online version of this article (doi:10.1186/s11671-016-1569-4) contains supplementary material, which is available to authorized users.

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Bicontinuous mesoporous carbon thin films via an order–order transition

Cited by 21 publications

References 33 publications

Bringing Porous Organic and Carbon‐Based Materials toward Thin‐Film Applications

Bringing Porous Organic and Carbon‐Based Materials toward Thin‐Film Applications

Influence of Synthesis Parameters in Obtaining KIT-6 Mesoporous Material

Structure Evolution of Ordered Mesoporous Carbons Induced by Water Content of Mixed Solvents Water/Ethanol

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