Thermoelectric Properties of Two-Dimensional Molybdenum-based MXenes

Handle URI:
http://hdl.handle.net/10754/625237
Title:
Thermoelectric Properties of Two-Dimensional Molybdenum-based MXenes
Authors:
Kim, Hyunho; Anasori, Babak; Gogotsi, Yury; Alshareef, Husam N. ( 0000-0001-5029-2142 )
Abstract:
MXenes are an interesting class of 2D materials consisting of transition metal carbides and nitrides, which are currently a subject of extensive studies. Although there have been theoretical calculations estimating the thermoelectric properties of MXenes, no experimental measurements have been reported so far. In this report, three compositions of Mo-based MXenes (Mo2CTx, Mo2TiC2Tx, and Mo2Ti2C3Tx) have been synthesized and processed into free-standing binder-free papers by vacuum-assisted filtration, and their electrical and thermoelectric properties are measured. Upon heating to 800 K, these MXene papers exhibit high conductivity and n-type Seebeck coefficient. The thermoelectric power reaches 3.09×10-4 W m-1 K-2 at 803 K for the Mo2TiC2Tx MXene. While the thermoelectric properties of MXenes do not reach that of the best materials, they exceed their parent ternary and quaternary layered carbides. Mo2TiC2Tx shows the highest electrical conductivity in combination with the largest Seebeck coefficient of the three 2D materials studied.
KAUST Department:
Materials Science and Engineering Program
Citation:
Kim H, Anasori B, Gogotsi Y, Alshareef HN (2017) Thermoelectric Properties of Two-Dimensional Molybdenum-Based MXenes. Chemistry of Materials. Available: http://dx.doi.org/10.1021/acs.chemmater.7b02056.
Publisher:
American Chemical Society (ACS)
Journal:
Chemistry of Materials
Issue Date:
5-Jul-2017
DOI:
10.1021/acs.chemmater.7b02056
Type:
Article
ISSN:
0897-4756; 1520-5002
Sponsors:
Support for research reported in this publication was provided by King Abdullah University of Science and Technology (KAUST).
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b02056
Appears in Collections:
Articles; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorKim, Hyunhoen
dc.contributor.authorAnasori, Babaken
dc.contributor.authorGogotsi, Yuryen
dc.contributor.authorAlshareef, Husam N.en
dc.date.accessioned2017-07-19T10:45:07Z-
dc.date.available2017-07-19T10:45:07Z-
dc.date.issued2017-07-05en
dc.identifier.citationKim H, Anasori B, Gogotsi Y, Alshareef HN (2017) Thermoelectric Properties of Two-Dimensional Molybdenum-Based MXenes. Chemistry of Materials. Available: http://dx.doi.org/10.1021/acs.chemmater.7b02056.en
dc.identifier.issn0897-4756en
dc.identifier.issn1520-5002en
dc.identifier.doi10.1021/acs.chemmater.7b02056en
dc.identifier.urihttp://hdl.handle.net/10754/625237-
dc.description.abstractMXenes are an interesting class of 2D materials consisting of transition metal carbides and nitrides, which are currently a subject of extensive studies. Although there have been theoretical calculations estimating the thermoelectric properties of MXenes, no experimental measurements have been reported so far. In this report, three compositions of Mo-based MXenes (Mo2CTx, Mo2TiC2Tx, and Mo2Ti2C3Tx) have been synthesized and processed into free-standing binder-free papers by vacuum-assisted filtration, and their electrical and thermoelectric properties are measured. Upon heating to 800 K, these MXene papers exhibit high conductivity and n-type Seebeck coefficient. The thermoelectric power reaches 3.09×10-4 W m-1 K-2 at 803 K for the Mo2TiC2Tx MXene. While the thermoelectric properties of MXenes do not reach that of the best materials, they exceed their parent ternary and quaternary layered carbides. Mo2TiC2Tx shows the highest electrical conductivity in combination with the largest Seebeck coefficient of the three 2D materials studied.en
dc.description.sponsorshipSupport for research reported in this publication was provided by King Abdullah University of Science and Technology (KAUST).en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b02056en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b02056.en
dc.titleThermoelectric Properties of Two-Dimensional Molybdenum-based MXenesen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalChemistry of Materialsen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Materials Science and Engineering and A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA 19104, USAen
kaust.authorKim, Hyunhoen
kaust.authorAlshareef, Husam N.en
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