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Showing 1 to 15 of 15 for “"mesoporous carbon"”.
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Control of Long Range Orientation in Ordered Mesoporous Carbon Thin Films
Ordered mesoporous carbons are appealing for many application areas, where their function and performance depend critically on structure. Thus, alignment of these mesopores by scalable methods is of notable interest. Cooperative self-assembly provides a facile route to fabrication of ordered …
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Mesoporous Carbon/Silica Encapsulated Molybdenum and Ruthenium Nanocatalysts For Green Chemistry Applications
… and metal compounds to be encapsulated within mesoporous carbon and silica supports. The resulted nanocatalysts (e.g., Mo@C, H4SiMo12O40@mSiO2, Mo/mSiO2, and Ru@mSiO2) have been demonstrated to be efficient and robust catalysts for Friedel-Crafts alkylation, oxidative desulfurization, and …
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Understanding the carbon morphology in sulfonated-silica ceramic carbon electrodes for the PEM fuel cell device
… linked to the use of Nafion® and the amount of carbon in the catalyst. In this work, 40 wt% Pt/C catalyst is used to obtain total electrode loadings as low as 0.2 mgPt cm-2, with the hypothesis of increased energy density while reducing catalyst layer thickness. This catalyst is used in …
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Impact of carbon micro/mesoporosity on the adsorption behavior of small molecules
Adsorption studies on carbon play a key role in fields such as environmental remediation, purification, and catalysis. Because of the inherently high surface area, low cost, and inertness of activated carbons, these materials have been the preferable substrate for remediation studies. The …
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The modification of activated carbon cloth by alumina deposition
The impregnation of mesoporous carbon cloth with alumina has been studied. The most successful method of impregnation resulted from preparation of the alumina phase by a sol/gel route. This method involves a boehmite intermediate, and the heating environment for the thermal transition of boehmite …
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SYNTHESIS AND CHARACTERIZATION OF NEW ELECTROCATALYTIC MATERIALS TO IMPROVE THE PERFORMANCE, OPERABILITY AND LIFE-TIME OF PEMFCS
… with high surface area and pore volume, commonly carbons, are widely used as catalyst supports in low-temperature fuel cells. The support materials can enhance the dispersion of metal particles. In addition, an interaction effect between the support material and the metal exists. It could change …
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Novel carbon materials with hierarchical porosity : templating strategies and advanced characterization
The aim of this work was the generation of carbon materials with high surface area, exhibiting a hierarchical pore system in the macro- and mesorange. Such a pore system facilitates the transport through the material and enhances the interaction with the carbon matrix (macropores are pores with …
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Unique templating of and applications enabled through mesoporous colloids
… process and applications enabled by utilizing mesoporous colloids, colloidal crystals, and films. Silica colloidal crystals, having colloids of less than 300 nm, were fabricated and used as a template for silicon deposition. Brillouin Light Scattering (BLS) experiments conducted on a silicon …
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A study of carbon based materials for energy applications
Carbon based materials such as CNTs and graphene have been widely studied over the last few years. The outstanding electrical and mechanical properties of these materials attracted researchers to find ways to grow and use them in nano-devices. Among the different techniques, PECVD is a relatively …
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Lignin valorization
… lignins resulted in a better candidate as carbon precursor and macromonomers for the synthesis of polymer than organosolv lignin. In fact, alkaline lignins showed higher residual mass after carbonization and higher content of the reactive hydroxy functionalities. In contrast, the lignin …
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Fabrication of carbon-based nanomaterials for energy conversion
… metal free catalysts have been widely developed. Carbon-based materials are one of the most important materials which have been playing a significant role in the development of energy conversion and storage devices because of their abundance, low cost, stability, easy accessibility, good …
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Direct 3D and in situ characterization of light metal hydrides for hydrogen storage
… high-energy ball-milling or by infiltration into mesoporous scaffolds. Although the hydrogen performance of these materials has been extensively studied, the characterization of the morphology, microstructure, and catalyst dispersion lagged behind, hindering progress in system development. The …
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Hydrothermally stable heterogeneous catalysts for biorenewable-derived molecule conversions to chemicals
… <p>From this work the development of the carbon catalyst is shown. First, I investigated of the hydrothermal stability of the current carbon catalysts in literature. Second, some model compound work showed which active site configurations, if possible, would increase the hydrothermal …
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Versatile, direct nanocasting strategy to N-rich ordered mesoporous carbons for selective post-combustion CO2 capture and energy storage
L'abstract è presente nell'allegato / the abstract is in the attachment