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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...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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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 |
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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 |
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