Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application
Miscanthus, switchgrass, and softwood chip biochars, produced by slow pyrolysis, were characterized to evaluate their properties in light of potential alternative and novel applications. This work investigated specific physical and chemical properties of biochars that have not been previously report...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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North Carolina State University
2015-12-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_1334_Behazin_Properties_Perennial_Grass_Biochars |
| _version_ | 1811259639514267648 |
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| author | Ehsan Behazin Emmanuel Ogunsona Arturo Rodriguez-Uribe Amar K. Mohanty Manjusri Misra Anthony O. Anyia |
| author_facet | Ehsan Behazin Emmanuel Ogunsona Arturo Rodriguez-Uribe Amar K. Mohanty Manjusri Misra Anthony O. Anyia |
| author_sort | Ehsan Behazin |
| collection | DOAJ |
| description | Miscanthus, switchgrass, and softwood chip biochars, produced by slow pyrolysis, were characterized to evaluate their properties in light of potential alternative and novel applications. This work investigated specific physical and chemical properties of biochars that have not been previously reported. Atomic force microscopy (AFM), moisture absorption, and electrical and thermal analysis were conducted to demonstrate the mechanical, physical, and chemical properties of biochars. In addition, elemental analysis, specific surface area, Fourier transform infrared in the attenuated total reflectance (FTIR-ATR), and X-ray diffraction were performed. The state-of-art quantitative nano-mechanical measurement yielded a modulus of elasticity of approximately 10 GPa for the wood chip biochar, while the grass-based samples exhibited a comparatively lower modulus of approximately 5 GPa. In addition, the pore blocking phenomenon by water molecules was identified as a cause for atypical behavior of the biochars’ moisture absorptions, resulting in wood chip biochar having the lowest equilibrium moisture content of 6.2 wt.%. Results from electrical and thermal conductivity measurements demonstrated relatively lower values in comparison to carbonized biomass. |
| first_indexed | 2024-04-12T18:34:38Z |
| format | Article |
| id | doaj.art-496f6eb1df194766b830867f4064c0d5 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-04-12T18:34:38Z |
| publishDate | 2015-12-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-496f6eb1df194766b830867f4064c0d52022-12-22T03:20:58ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-12-011111334134810.15376/biores.11.1.1334-1348Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite ApplicationEhsan Behazin0Emmanuel Ogunsona1Arturo Rodriguez-Uribe2Amar K. Mohanty3Manjusri Misra4Anthony O. Anyia5University of Guelph/BDDC; CanadaUniversity of Guelph/BDDC; CanadaUniversity of Guelph/BDDC; CanadaUniversity of Guelph/BDDC; CanadaUniversity of Guelph/BDDC; CanadaAlberta innovates technology futures/University of Alberta; CanadaMiscanthus, switchgrass, and softwood chip biochars, produced by slow pyrolysis, were characterized to evaluate their properties in light of potential alternative and novel applications. This work investigated specific physical and chemical properties of biochars that have not been previously reported. Atomic force microscopy (AFM), moisture absorption, and electrical and thermal analysis were conducted to demonstrate the mechanical, physical, and chemical properties of biochars. In addition, elemental analysis, specific surface area, Fourier transform infrared in the attenuated total reflectance (FTIR-ATR), and X-ray diffraction were performed. The state-of-art quantitative nano-mechanical measurement yielded a modulus of elasticity of approximately 10 GPa for the wood chip biochar, while the grass-based samples exhibited a comparatively lower modulus of approximately 5 GPa. In addition, the pore blocking phenomenon by water molecules was identified as a cause for atypical behavior of the biochars’ moisture absorptions, resulting in wood chip biochar having the lowest equilibrium moisture content of 6.2 wt.%. Results from electrical and thermal conductivity measurements demonstrated relatively lower values in comparison to carbonized biomass.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_1334_Behazin_Properties_Perennial_Grass_BiocharsBiocharSlow pyrolysisBET surface analysisElemental analysisAtomic force microscopy |
| spellingShingle | Ehsan Behazin Emmanuel Ogunsona Arturo Rodriguez-Uribe Amar K. Mohanty Manjusri Misra Anthony O. Anyia Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application BioResources Biochar Slow pyrolysis BET surface analysis Elemental analysis Atomic force microscopy |
| title | Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application |
| title_full | Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application |
| title_fullStr | Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application |
| title_full_unstemmed | Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application |
| title_short | Mechanical, Chemical, and Physical Properties of Wood and Perennial Grass Biochars for Possible Composite Application |
| title_sort | mechanical chemical and physical properties of wood and perennial grass biochars for possible composite application |
| topic | Biochar Slow pyrolysis BET surface analysis Elemental analysis Atomic force microscopy |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_1_1334_Behazin_Properties_Perennial_Grass_Biochars |
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