"Blue glue": A new precursor of carbon aerogels
Amaral-Labat, G; Szczurek, A; Fierro, V; Pizzi, A; Masson, E; Celzard, A
| HERO ID | 1445067 |
|---|---|
| In Press | No |
| Year | 2012 |
| Title | "Blue glue": A new precursor of carbon aerogels |
| Authors | Amaral-Labat, G; Szczurek, A; Fierro, V; Pizzi, A; Masson, E; Celzard, A |
| Journal | Microporous and Mesoporous Materials |
| Volume | 158 |
| Page Numbers | 272-280 |
| Abstract | New carbon aerogels have been prepared from urea-branched phenol-resorcinol-formaldehyde resin. Such material, called ""blue glue"" and used as cold-set adhesive for wood, has been modified in order to obtain highly porous organic gels. The latter were prepared at different pH (5, 7 and 9), dried with supercritical methanol, and carbonised at two different heating rates (2.5 and 5 degrees C min(-1)). FTIR analysis confirmed the expected chemical structure of the gel, and GC-MS analysis of the solvent condensed after supercritical drying suggested a slight chemical degradation of the gels during the drying process. However, low-density (0.15-0.31 g cm(-3)), monolithic, carbon gels could be successfully derived from these materials, having high BET surface areas (900-1300 m(2) g(-1)) and high mesopore fractions (60-80%). These ranges of values originate from the conditions tested for preparing the materials. Such carbon aerogels are two times cheaper than their traditional resorcinol- formaldehyde-based counterparts and present similar, if not more developed, porous structures. (C) 2012 Elsevier Inc. All rights reserved. |
| Doi | 10.1016/j.micromeso.2012.03.051 |
| Wosid | WOS:000305714200038 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000305714200038 |
| Is Public | Yes |
| Keyword | Carbon aerogel; Surface area; Porous structure; Resin; Supercritical drying |