3D interconnected macroporous carbon monoliths prepared by ultrasonic irradiation

The contribution of sulfate ions and protons to the specific capacitance of microporous carbon monoliths

“…Although carbon monoliths have been prepared before [1,2,[7][8][9][10][11][12][13][14][15][16][17], only in the last few years have they been studied as electrodes in their current form, i.e. as an entire piece of carbon [6,[18][19][20][21][22][23][24][25][26][27][28][29][30][31][32].…”

“…The usual procedures to prepare porous carbon monoliths are: (i) From carbonization of gels obtained from several carbon precursors and catalysts [1,2,[11][12][13][14][15]18,24,25,29,31], (ii) From carbonization of gels having a "template" that is removed either thermally during carbonization, or chemically by reaction with specific reagents [4,8,23], (iii) From infiltration of an inorganic monolith with a carbon precursor followed by carbonization of the precursor and removal of the inorganic template [8,9,13,30], (iv)…”

Surface characteristics and antibacterial activity of a silver-doped carbon monolith

“…An alternative method of obtaining materials with a defined shape is powder pressing [4]. Tonanon et al [5] described a new method for preparing CMs by ultrasonic irradiation. CMs are attractive for applications in catalysis, biocatalysis, adsorption, as porous electrodes under a continuous flow condition and as chromatography columns.…”

Preparation of resorcinol formaldehyde (RF) carbon gels: Use of ultrasonic irradiation followed by microwave drying

“…The carbon gels are suitable for many applications such as column packing materials for high-performance liquid chromatography, electrode materials for electrical double layer capacitors, medical applications (controlled drug delivery system and drug targeting) and materials for catalyst supports [1,2]. In addition to mesoporous carbon, the 3D interconnected macroporous carbon monolith [3] is a carbon structure which is suitable for flow-through application and some special applications such as separation and catalyst support. The porous properties of carbon gels depend on many factors such as reactant ratios, ultrasonic irradiation and drying methods.…”

“…For ultrasonic irradiated carbon gels, when C/W (the ratio of sodium carbonate to water) = 20-80 mol/m 3 , the mesoporous properties of an RF carbon gel can be maintained during freeze drying. In contrast, C/W = 10 mol/m 3 gives 3D interconnected macroporous carbon monolith [3]. The objectives of this work are to investigate: (1) the porous properties of ultrasonic irradiated RF carbon gel after microwave drying and (2) the possibility of using microwave drying for 3D interconnected macroporous carbon monolith.…”