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Issue 22, 2018
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Synthesis of perfectly ordered mesoporous carbons by water-assisted mechanochemical self-assembly of tannin

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Abstract

A simple, green, one-pot mechanosynthesis method for preparing perfectly ordered mesoporous carbons (OMCs) by ball-milling is presented herein. Mimosa tannin (T) and Pluronic® F127 (P) are used as the carbon precursor and as the mesopore-directing agent, respectively. Water (W) is used to promote micelle formation and also the interaction between T and P; no crosslinker is used and drying or curing steps before carbonization are not needed either. The experimental conditions, such as the milling time, the pH of added W and the P : W ratio are optimized to obtain perfect 2D hexagonal OMCs with BET areas as high as 588 m2 g−1 after carbonization at 900 °C. Carbonization temperatures up to 1500 °C or activation allow further increasing the surface area, up to ∼1900 m2 g−1, while maintaining the ordered mesoporous structure. These materials should find relevant applications in environmental remediation strategies for oil spills, in selective CO2 adsorption from humid gases or as electrodes of supercapacitors.

Graphical abstract: Synthesis of perfectly ordered mesoporous carbons by water-assisted mechanochemical self-assembly of tannin

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Publication details

The article was received on 23 Jul 2018, accepted on 15 Sep 2018 and first published on 17 Sep 2018


Article type: Paper
DOI: 10.1039/C8GC02295J
Citation: Green Chem., 2018,20, 5123-5132
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    Synthesis of perfectly ordered mesoporous carbons by water-assisted mechanochemical self-assembly of tannin

    J. Castro-Gutiérrez, A. Sanchez-Sanchez, J. Ghanbaja, N. Díez, M. Sevilla, A. Celzard and V. Fierro, Green Chem., 2018, 20, 5123
    DOI: 10.1039/C8GC02295J

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