dc.creator | Orlova, Tatiana S. | es |
dc.creator | Parfen’eva, L.S. | es |
dc.creator | Smirnov, B. I. | es |
dc.creator | Gutiérrez Pardo, Antonio Anselmo | es |
dc.creator | Ramírez Rico, Joaquín | es |
dc.date.accessioned | 2018-11-27T15:55:20Z | |
dc.date.available | 2018-11-27T15:55:20Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Orlova, T.S., Parfen’eva, L.S., Smirnov, B.I., Gutiérrez Pardo, A.A. y Ramírez Rico, J. (2016). Thermal Conductivity of Partially Graphitized Biocarbon Obtained by Carbonization of Medium-Density Fiberboard in the Presence of a Ni-Based Catalyst. Physics of the Solid State, 58 (1), 208-214. | |
dc.identifier.issn | 1063-7834 | es |
dc.identifier.issn | 1090-6460 | es |
dc.identifier.uri | https://hdl.handle.net/11441/80583 | |
dc.description.abstract | The thermal conductivity k and resistivity ρ of biocarbon matrices, prepared by carbonizing medium-density fiberboard at Tcarb = 850 and 1500°C in the presence of a Ni-based catalyst (samples MDFC( Ni)) and without a catalyst (samples MDF-C), have been measured for the first time in the temperature range of 5–300 K. X-ray diffraction analysis has revealed that the bulk graphite phase arises only at Tcarb = 1500°C. It has been shown that the temperature dependences of the thermal conductivity of samples MDFC- 850 and MDF-C-850(Ni) in the range of 80–300 K are to each other and follow the law of k(T) ~ T1.65, but the use of the Ni-catalyst leads to an increase in the thermal conductivity by a factor of approximately 1.5, due to the formation of a greater fraction of the nanocrystalline phase in the presence of the Ni-catalyst at Tcarb = 850°C. In biocarbon MDF-C-1500 prepared without a catalyst, the dependence is k(T) ~ T1.65, and it is controlled by the nanocrystalline phase. In MDF-C-1500(Ni), the bulk graphite phase formed increases the thermal conductivity by a factor of 1.5–2 compared to the thermal conductivity of MDF-C-1500 in the entire temperature range of 5–300 K; k(T = 300 K) reaches the values of ~10 W m–1 K–1, characteristic of biocarbon obtained without a catalyst only at high temperatures of Tcarb = 2400°C. It has been shown that MDF-C-1500(Ni) in the temperature range of 40‒300 K is characterized by the dependence, k(T) ~ T1.3, which can be described in terms of the model of partially graphitized biocarbon as a composite of an amorphous matrix with spherical inclusions of the graphite phase | es |
dc.description.sponsorship | Russian Foundation for Basic Research 14-03- 00496 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Springer | es |
dc.relation.ispartof | Physics of the Solid State, 58 (1), 208-214. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Thermal Conductivity of Partially Graphitized Biocarbon Obtained by Carbonization of Medium-Density Fiberboard in the Presence of a Ni-Based Catalyst | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física de la Materia Condensada | es |
dc.relation.projectID | 14-03- 00496 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1134/S1063783416010236 | es |
dc.identifier.doi | 10.1134/S1063783416010236 | es |
idus.format.extent | 7 p. | es |
dc.journaltitle | Physics of the Solid State | es |
dc.publication.volumen | 58 | es |
dc.publication.issue | 1 | es |
dc.publication.initialPage | 208 | es |
dc.publication.endPage | 214 | es |
dc.contributor.funder | Russian Foundation for Basic Research | |