Porous Properties of Carbon/Carbon Composite Xerogels

Kriangsak Kraiwattanawong

doi:10.4028/www.scientific.net/MSF.928.62

Paper Titles

Void Content Measurement in Fiber Reinforced Plastic Composites by X-Ray Computed Tomography
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Synthesis, Consolidation and Modelling Study of AA2014-TiB₂ Composite Prepared by Powder Metallurgy (P/M) Method
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Studies on Porosity of Al-4.5%Cu-2.5pTiB₂ In Situ Composites
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The Promise of Sustainable Magnesium Composite Technology for Greener Future
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Porous Properties of Carbon/Carbon Composite Xerogels
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Effect of Annealing Temperature on the Photocatalytic Activity and Hydrophobic Property of TiO₂ Nanorod Arrays Prepared by Hydrothermal Method
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Synthesis of Bimetallic PdAg Nanoparticles through an Oligomerization- Controlled Biomineralization Peptide
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Assessment of New Technique for Production Cellulose Nanocrystals from Agricultural Waste
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Green Synthesis of AgNPs Coated Mesoporous Silica Nanoparticles Using Tyrosine as Reducing/Stabilising Agent
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HomeMaterials Science ForumMaterials Science Forum Vol. 928Porous Properties of Carbon/Carbon Composite...

Porous Properties of Carbon/Carbon Composite Xerogels

Abstract:

Carbon/carbon composite xerogels are prepared by a vacuum drying technique whereas a carbon cryogel is synthesized by a freeze drying technique to compare the effect of these drying methods at the selective synthesis condition. Resorcinol and formaldehyde are used to prepare a matrix phase and cotton fibers are acted as a disperse phase of the carbon/carbon composite xerogels. Here resorcinol and formaldehyde is utilized to synthesize the carbon cryogel only. The carbon/carbon composite xerogels and the carbon cryogel were analyzed by a nitrogen adsorption apparatus and a field emission scanning electron microscope. The results support that the vacuum drying can decrease the pore shrinkage despite of the gas-liquid interface. The porous properties of the carbon xerogel is quite equivalent to the porous properties of the carbon cryogel. When the porous properties of carbon xerogels are considered, their porous properties can be preserved at the high porosity until 0.15 g/g of the cotton fibers/resorcinol ratio. At 0.25 g/g of this ratio, the porous properties start decreasingly.