Cargando…

Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures

Wood-derived porous graphitic biocarbons with hierarchical structures were obtained by high-temperature (2200–2400 °C) non-catalytic graphitization, and their mechanical, electrical and thermal properties are reported for the first time. Compared to amorphous biocarbon produced at 1000 °C, the graph...

Descripción completa

Detalles Bibliográficos
Autores principales: Yu, Min, Saunders, Theo, Su, Taicao, Gucci, Francesco, Reece, Michael John
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6163411/
https://www.ncbi.nlm.nih.gov/pubmed/30200520
http://dx.doi.org/10.3390/ma11091588
_version_ 1783359354623229952
author Yu, Min
Saunders, Theo
Su, Taicao
Gucci, Francesco
Reece, Michael John
author_facet Yu, Min
Saunders, Theo
Su, Taicao
Gucci, Francesco
Reece, Michael John
author_sort Yu, Min
collection PubMed
description Wood-derived porous graphitic biocarbons with hierarchical structures were obtained by high-temperature (2200–2400 °C) non-catalytic graphitization, and their mechanical, electrical and thermal properties are reported for the first time. Compared to amorphous biocarbon produced at 1000 °C, the graphitized biocarbon-2200 °C and biocarbon-2400 °C exhibited increased compressive strength by ~38% (~36 MPa), increased electrical conductivity by ~8 fold (~29 S/cm), and increased thermal conductivity by ~5 fold (~9.5 W/(m·K) at 25 °C). The increase of duration time at 2200 °C contributed to increased thermal conductivity by ~12%, while the increase of temperature from 2200 to 2400 °C did not change their thermal conductivity, indicating that 2200 °C is sufficient for non-catalytic graphitization of wood-derived biocarbon.
format Online
Article
Text
id pubmed-6163411
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-61634112018-10-12 Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures Yu, Min Saunders, Theo Su, Taicao Gucci, Francesco Reece, Michael John Materials (Basel) Article Wood-derived porous graphitic biocarbons with hierarchical structures were obtained by high-temperature (2200–2400 °C) non-catalytic graphitization, and their mechanical, electrical and thermal properties are reported for the first time. Compared to amorphous biocarbon produced at 1000 °C, the graphitized biocarbon-2200 °C and biocarbon-2400 °C exhibited increased compressive strength by ~38% (~36 MPa), increased electrical conductivity by ~8 fold (~29 S/cm), and increased thermal conductivity by ~5 fold (~9.5 W/(m·K) at 25 °C). The increase of duration time at 2200 °C contributed to increased thermal conductivity by ~12%, while the increase of temperature from 2200 to 2400 °C did not change their thermal conductivity, indicating that 2200 °C is sufficient for non-catalytic graphitization of wood-derived biocarbon. MDPI 2018-09-02 /pmc/articles/PMC6163411/ /pubmed/30200520 http://dx.doi.org/10.3390/ma11091588 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yu, Min
Saunders, Theo
Su, Taicao
Gucci, Francesco
Reece, Michael John
Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures
title Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures
title_full Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures
title_fullStr Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures
title_full_unstemmed Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures
title_short Effect of Heat Treatment on the Properties of Wood-Derived Biocarbon Structures
title_sort effect of heat treatment on the properties of wood-derived biocarbon structures
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6163411/
https://www.ncbi.nlm.nih.gov/pubmed/30200520
http://dx.doi.org/10.3390/ma11091588
work_keys_str_mv AT yumin effectofheattreatmentonthepropertiesofwoodderivedbiocarbonstructures
AT saunderstheo effectofheattreatmentonthepropertiesofwoodderivedbiocarbonstructures
AT sutaicao effectofheattreatmentonthepropertiesofwoodderivedbiocarbonstructures
AT guccifrancesco effectofheattreatmentonthepropertiesofwoodderivedbiocarbonstructures
AT reecemichaeljohn effectofheattreatmentonthepropertiesofwoodderivedbiocarbonstructures