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Milling as a route to porous graphitic carbons from biomass

Authors :
S. J. A. Hérou
John K. Davies
Alexander N. Kulak
Zoe Schnepp
Robert D. Hunter
Source :
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Publication Year :
2021
Publisher :
The Royal Society, 2021.

Abstract

This paper reports a simple way to produce porous graphitic carbons from a wide range of lignocellulosic biomass sources, including nut shells, softwood sawdust, seed husks and bamboo. Biomass precursors are milled and sieved to produce fine powders and are then converted to porous graphitic carbons by iron-catalysed graphitization. Graphitizing the raw (unmilled) biomass creates carbons that are diverse in their porosity and adsorption properties. This is due to the inability of the iron catalyst precursor to penetrate the structure of dense biomass material. Milling enables much more efficient impregnation of the biomass and produces carbons with homogeneous properties. Lignocellulosic biomass (particularly waste biomass) is an attractive precursor to technologically important porous graphitic carbons as it is abundant and renewable. This simple method for preparing the biomass enables a wide range of biomass sources to be used to produce carbons with homogeneous properties. This article is part of the theme issue ‘Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 2)’.

Details

Language :
English
ISSN :
1364503X
Database :
OpenAIRE
Journal :
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Accession number :
edsair.doi.dedup.....d80b4836249e287ef5c61d8ad4f48af0