Novel synthesis of porous carbons with tunable pore size by surfactant-templated sol-gel process and carbonisation.

TLDR: Surfactant-templated sol-gel polymerisation was explored to synthesize the resorcinol-formaldehyde gels without supercritical drying step, which were further carbonised to obtain porous carbons of a tunable pore size.

About: This article is published in Chemical Communications.The article was published on 2002-11-04 and is currently open access. It has received 77 citations till now. The article focuses on the topics: Supercritical drying.

Figures

Fig. 2 FE-SEM images of porous materials: (a) the RF precursor gel for C4 before carbonisation; (b) C4; (c) C2; (d) C5. The images were obtained with a JEOL JSM 6700F and 6330F. Note the uniform-sized spherical clusters and pores formed at the interstitial sites.

Fig. 1 The synthetic scheme for porous carbons. The detailed explanation is given in the text.

Frequently asked questions

Q1. What have the authors contributed in "Novel synthesis of porous carbons with tunable pore size by surfactant-templated sol–gel process and carbonisation" ?

Here, the authors report another low-cost preparation method for RF xerogels, where a normal drying is still applicable because the pore collapse can be minimized during the water evaporation. The microto nanosized spherical gel clusters are formed within the micelles, which are further three-dimensionally connected via a crosslinking reaction. The resulting RF gels are dried at 85 °C and further heat-treated at 1000 °C for 3 h under argon atmosphere to obtain porous carbons in monolithic shape.