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dc.contributor.author
Mercer, Michael
dc.contributor.author
Nagarathinam, Mangayarkarasi
dc.contributor.author
Gavilán Arriazu, Edgardo Maximiliano
dc.contributor.author
Binjrajka, Anshika
dc.contributor.author
Panda, Swoyam
dc.contributor.author
Au, Heather
dc.contributor.author
Crespo Ribadeneyra, Maria
dc.contributor.author
Titirici, Maria Magdalena
dc.contributor.author
Leiva, Ezequiel Pedro M.
dc.contributor.author
Hoster, Harry Ernst
dc.date.available
2024-02-08T13:23:29Z
dc.date.issued
2023-02
dc.identifier.citation
Mercer, Michael; Nagarathinam, Mangayarkarasi; Gavilán Arriazu, Edgardo Maximiliano; Binjrajka, Anshika; Panda, Swoyam; et al.; Sodiation energetics in pore size controlled hard carbons determined via entropy profiling; Royal Society of Chemistry; Journal of Materials Chemistry A; 11; 12; 2-2023; 6543-6555
dc.identifier.issn
2050-7488
dc.identifier.uri
http://hdl.handle.net/11336/226408
dc.description.abstract
Hard carbons show considerable potential as anode materials in emerging sodium-ion battery technologies. Recent work suggests sodiation of hard carbon proceeds by insertion of sodium at defects, within the interlayers and inside the nanopores. The energetics of these processes dictate the characteristic sloping region and plateau when hard carbon is charged/discharged with sodium. However, the driving forces affecting these processes, and particularly sodium filling into nanopores, are under debate and are holding back controlled material optimisation. We apply entropy profiling (EP), where the cell temperature is changed under open circuit conditions, to yield additional insights into sodium insertion in hard carbons of systematically controlled pore size. Features from EP vary with the pore size, allowing us to precisely determine the onset of nanopore filling. Comparing the system entropy and enthalpy data to models, we can quantify the energetics of sodium inside the nanopores. The average binding energy of sodium in the pores is found to be inversely proportional to the pore radius of curvature, which is attributed to the scaling of the surface area to volume inside the pores. This simple structure-property relationship provides a rational framework to tune the cell cut-off voltage of sodium-ion cells based on hard carbon, potentially enabling future materials of improved safety and longevity.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Royal Society of Chemistry
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
SODIATION
dc.subject
ENTROPY PROFILING
dc.subject
PORE SIZE
dc.subject
HARD CARBON
dc.subject.classification
Físico-Química, Ciencia de los Polímeros, Electroquímica
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Sodiation energetics in pore size controlled hard carbons determined via entropy profiling
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-08T10:56:07Z
dc.identifier.eissn
2050-7496
dc.journal.volume
11
dc.journal.number
12
dc.journal.pagination
6543-6555
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Mercer, Michael. Lancaster University; Reino Unido. The Faraday Institution; Reino Unido. Helmut-Schmidt University; Alemania
dc.description.fil
Fil: Nagarathinam, Mangayarkarasi. Lancaster University; Reino Unido. The Faraday Institution; Reino Unido
dc.description.fil
Fil: Gavilán Arriazu, Edgardo Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Teórica y Computacional; Argentina
dc.description.fil
Fil: Binjrajka, Anshika. Lancaster University; Reino Unido
dc.description.fil
Fil: Panda, Swoyam. Lancaster University; Reino Unido
dc.description.fil
Fil: Au, Heather. Imperial College London; Reino Unido
dc.description.fil
Fil: Crespo Ribadeneyra, Maria. Imperial College London; Reino Unido. Queen Mary University of London; Reino Unido
dc.description.fil
Fil: Titirici, Maria Magdalena. Imperial College London; Reino Unido
dc.description.fil
Fil: Leiva, Ezequiel Pedro M.. Universidad Nacional de Córdoba. Facultad de Cs.químicas. Departamento de Química Teórica y Computacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
dc.description.fil
Fil: Hoster, Harry Ernst. Lancaster University; Reino Unido. The Faraday Institution; Reino Unido. Universitat Essen; Alemania
dc.journal.title
Journal of Materials Chemistry A
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2023/ta/d2ta09406a
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1039/D2TA09406A
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