Journal ArticleDOI
Effect of synthesis pH on the structure of carbon xerogels
Chuan Lin,James A. Ritter +1 more
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In this article, mesoporous carbon xerogels were prepared from the sol-gel polymerization of resorcinol with formaldehyde (RF) followed by carbonization.About:
This article is published in Carbon.The article was published on 1997-01-01. It has received 346 citations till now. The article focuses on the topics: Carbonization & Carbon.read more
Citations
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Infrared-active phonons in carbon nanotubes
TL;DR: In this article, the main infrared vibrational features of carbon nanotubes were identified by comparing the experimental spectra of different single-walled and doublewalled carbon nanophotonics and graphite and carbon aerogel.
Journal ArticleDOI
Textural and mechanical characteristics of carbon aerogels synthesized by polymerization of resorcinol and formaldehyde using alkali carbonates as basification agents.
Sergio Morales-Torres,Francisco J. Maldonado-Hódar,Agustín F. Pérez-Cadenas,Francisco Carrasco-Marín +3 more
TL;DR: Five organic aerogels were prepared simultaneously by polycondensation of resorcinol and formaldehyde using different alkali carbonates (M(2)CO(3), M = Li, Na, K, Rb and Cs) as basification agents to study the porosity and microporosity of the samples.
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Evolution of mechanical properties and final textural properties of resorcinol-formaldehyde xerogels during ambient air drying
TL;DR: In this article, the shrinkage behavior and the mechanical properties of carbon xerogels obtained with R/C ratio ranging from 300 to 1500 were investigated, and it was shown that the smaller the ratio, the higher shrinkage, the stiffening, and the viscoelastic character of the xerogs.
Journal ArticleDOI
Sulfurized carbon xerogels as Pt support with enhanced activity for fuel cell applications
Cinthia Alegre,David Sebastián,Maria Elena Galvez,Maria Elena Galvez,Rafael Moliner,María Jesús Lázaro +5 more
TL;DR: In this paper, highly mesoporous carbon xerogels (CXGs) have been subjected to a sulfurization process with elemental sulfur, and the insertion of S into the carbon matrix does not compromise their mesophorous structure.
Journal ArticleDOI
Rheological determination of the sol-gel transition during the aqueous synthesis of resorcinol-formaldehyde resins
TL;DR: In this paper, the authors measured the sol-gel transition of organic gels prepared by polycondensation of resorcinol (R ) with formaldehyde (F ) in presence of sodium carbonate (C ) at a single frequency.
References
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Book
CRC Handbook of Chemistry and Physics
TL;DR: CRC handbook of chemistry and physics, CRC Handbook of Chemistry and Physics, CRC handbook as discussed by the authors, CRC Handbook for Chemistry and Physiology, CRC Handbook for Physics,
Journal ArticleDOI
Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984)
TL;DR: Mise au point comportant des definitions generales et la terminologie, la methodologie utilisee, les procedes experimentaux, les interpretations des donnees d'adsorption, les determinations de l'aire superficielle, and les donnes sur la mesoporosite et la microporosite.
Sol-gel science
TL;DR: In this article, the authors present and understand the sol-gel processing sequence from beginning to end, including discussions on the chemistry of hydrolysis and condensation of metal-organics and inorganic salts, the growth of polymeric or particulate species in sols, gelation, aging of gels, drying, structure of Gels, and sintering.
Journal ArticleDOI
Organic aerogels from the polycondensation of resorcinol with formaldehyde
TL;DR: In this paper, the polycondensation of resorcinol with formaldehyde under alkaline conditions results in the formation of surface functionalized polymer "clusters" which are processed under supercritical conditions to obtain low density, organic aerogels.