Bimodal mesoporous hard carbons from stabilized resorcinol-formaldehyde resin and silica template with enhanced adsorption capacity

Abstract

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Engineering Mesoporous Structure in Amorphous Carbon Boosts Potassium Storage with High Initial Coulombic Efficiency

“…S6a) shows a broad peak at 22.8° with an average interlayer distance (d 002 ) of 0.39 nm, while the same peak of micro-C is located at a lower angle with a larger interlayer distance of 0.41 nm. The in-plane graphitic crystallite size (L a ) and the crystallite size along the c-axis (L c ) were also determined by the Scherrer equation [35]. The L a /L c values of meso-C and micro-C samples are 3.22/1.28 and 3.09/1.17 nm, respectively, further suggesting the higher graphitization degree of meso-C.…”

Melamine adsorption on carbon materials: impact of carbon texture and surface chemistry

“…The procedure was based on the synthesis developed by Fuentes-Quezada and co-workers 25 but involved a different sized SiO 2 hard-template. In this method, two solutions (A and B) had to be prepared.…”

Effect of bimodal mesoporous carbon as PtRu catalyst support for direct methanol fuel cells

“…32 The Sipernat® 50 are porous silica particles of 70 mm in diameter and a surface area of 475 m 2 g À1 . 29 Briey, two solutions were prepared, the solution A containing 2 g of resorcinol (R) (99.0% ACS, Sigma-Aldrich), 1 g of the SA solution, and 0.25 g of sodium acetate (trihydrate PA, Ciccarelli) were dissolved in 50 mL of milli-Q water. In the solution B, the HT was completely dispersed in 4 g of methanol (Biopack 99.8% wt), 5 g of glycerol (Biopack 99.5% wt), and 50 mL of milli-Q water.…”

“…17,22,23,28 More recently, we have presented a new method for the synthesis of carbon with dual mesopores size which can satisfy the requirements of an appropriate porous carbon support. 29 This study analyzes the effect of the pore size distribution and the pore volume fraction of the carbon support on the fuel cell performance. The strategy was to produce carbons with a different pore size distribution and mesopore volume, preserving the rest of the textural properties.…”

“…The set of properties were tuned by adding pore forming agents in the resorcinol formaldehyde polymerization media. [29][30][31] In the present work, we describe the preparation and characterization of PtRu catalyst, synthesized by the impregnationreduction method, supported on three different MCs. The carbon supports were obtained by carbonization of a resorcinol-formaldehyde polymer combining commercial silica as hard template and polydiallyldimethylammonium chloride as structuring agent.…”