Sol–Gel Synthesis of Microporous Carbon Using Resorcinol and Formaldehyde. (April 2016)

• Record Type: Journal Article
• Authors: Moussaoui, Rebah; Mosbah, Mongi Ben; Elghniji, Kais; Elaloui, Elimame; Moussaoui, Younes
• Is Part Of: Journal of chemical research. Volume 40:Number 4(2016)
• Page Start: 209
• Page End: 212
• Publication Date: 2016-04
• Subjects: sol–gel preparation -- surface area -- resorcinol–formaldehyde xerogel -- microporous carbon -- pyrolysis; Chemistry -- Research -- Periodicals; Chemistry -- Periodicals; 540.5
• DOI: 10.3184/174751916X14569337313581
• Languages: English
• ISSNs: 1747-5198

Abstract

Microporous carbon materials were prepared by thermal decomposition of a xerogel. The xerogel was synthesised through polycondensation of resorcinol and formaldehyde using an acid-catalysed sol–gel method. Acetic acid (1 M) was used as a catalyst. The effect of the molar ratio of resorcinol/catalyst (10/3, 5, 10, 20) on the obtained hydrogel was studied. The temperature range 25–110 °C was used to convert the hydrogel into a solid resorcinol/formaldehyde xerogel. The optimum molar ratio of resorcinol/catalyst was found to be 10/3. The dried xerogels were pyrolysed under an argon atmosphere at 800 °C to obtain microporous carbon materials with a uniform structure consisting of hollow particles and a specific surface area of 650 m 2 g −1 .