Easy and eco-friendly synthesis of ordered mesoporous carbons by self-assembly of tannin with a block copolymer. Issue 11 (5th February 2016)

• Record Type: Journal Article
• Authors: Braghiroli, F. L.; Fierro, V.; Parmentier, J.; Pasc, A.; Celzard, A.
• Is Part Of: Green chemistry. Volume 18:Issue 11(2016)
• Page Start: 3265
• Page End: 3271
• Publication Date: 2016-02-05
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/c5gc02788h
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : Synthesis of ordered mesoporous carbons from tannin with ordered mesostructure and good thermal stability. Abstract : Ordered mesoporous carbons were prepared by the self-assembly of Mimosa tannin, a natural polyphenolic molecule, and a micellar solution of Pluronic® F127, used as soft template. The synthesis was carried out at 20 °C using water as the only solvent and without crosslinker agent ( i.e., formaldehyde). When tannin, at any pH lower than 4.2, and Pluronic solutions were mixed, a phase separation mechanism immediately occurred due to the strong interaction between both polymers. The precipitated resin was recovered, dried and pyrolysed at 400, 700 and 900 °C. Ordered mesoporous carbon materials were obtained, having both high pore volume and surface areas, up to 0.64 cm 3 g −1 or 720 m 2 g −1, respectively.