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

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 mi...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2018-11, Vol.20 (22), p.5123-5132
Main Authors: Castro-Gutiérrez, Jimena, Sanchez-Sanchez, Angela, Ghanbaja, Jaafar, Díez, Noel, Sevilla, Marta, Celzard, Alain, Fierro, Vanessa
Format: Article
Language:English
Subjects:
Ball milling
Carbon dioxide
Carbonization
Chemical Sciences
Crosslinking
Drying
Engineering Sciences
Gases
Green chemistry
Material chemistry
Micelles
Oil spills
Self-assembly
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Summary: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 m 2 g −1 after carbonization at 900 °C. Carbonization temperatures up to 1500 °C or activation allow further increasing the surface area, up to ∼1900 m 2 g −1 , while maintaining the ordered mesoporous structure. These materials should find relevant applications in environmental remediation strategies for oil spills, in selective CO 2 adsorption from humid gases or as electrodes of supercapacitors.
ISSN:1463-9262
1463-9270
DOI:10.1039/C8GC02295J