Elastocaloric effect in graphene kirigami

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversity of Brasília, Institute of Physic-
Autor(es): dc.contributorUniversity of Brasília, Institute of Physics, Computational Materials Laboratory, LCCMat-
Autor(es): dc.contributorUniversity of Brasília, Faculty of Technology, Department of Electrical Engineering-
Autor(es): dc.contributorUniversity of Campinas, Gleb Wataghin Institute of Physics, Applied Physics Department-
Autor(es): dc.creatorRibeiro Júnior, Luiz Antônio-
Autor(es): dc.creatorPereira Júnior, Marcelo Lopes-
Autor(es): dc.creatorFonseca, Alexandre F.-
Data de aceite: dc.date.accessioned2024-07-22T12:28:06Z-
Data de disponibilização: dc.date.available2024-07-22T12:28:06Z-
Data de envio: dc.date.issued2024-07-16-
Data de envio: dc.date.issued2024-07-16-
Data de envio: dc.date.issued2023-07-21-
Fonte completa do material: dc.identifierhttp://repositorio2.unb.br/jspui/handle/10482/48895-
Fonte completa do material: dc.identifierhttps://doi.org/10.1021/acs.nanolett.3c02260-
Fonte completa do material: dc.identifierhttps://orcid.org/0000-0001-8413-9744-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/804297-
Descrição: dc.descriptionKirigami, a traditional Japanese art of paper cutting, has recently been explored for its elastocaloric effect (ECE) in kirigami-based materials (KMs), where an applied strain induces temperature changes. Importantly, the feasibility of a nanoscale graphene kirigami monolayer was experimentally demonstrated. Here, we investigate the ECE in GK representing the thinnest possible KM to better understand this phenomenon. Through molecular dynamics simulations, we analyze the temperature change and coefficient of performance (COP) of GK. Our findings reveal that while GKs lack the intricate temperature changes observed in macroscopic KMs, they exhibit a substantial temperature change of approximately 9.32 K (23 times higher than that of macroscopic KMs, which is about 0.4 K) for heating and −3.50 K for cooling. Furthermore, they demonstrate reasonable COP values of approximately 1.57 and 0.62, respectively. It is noteworthy that the one-atom-thick graphene configuration prevents the occurrence of the complex temperature distribution observed in macroscopic KMs.-
Descrição: dc.descriptionFaculdade de Tecnologia (FT)-
Descrição: dc.descriptionDepartamento de Engenharia Elétrica (FT ENE)-
Descrição: dc.descriptionInstituto de Física (IF)-
Idioma: dc.languageen-
Publicador: dc.publisherAmerican Chemical Society-
Relação: dc.relationhttps://pubs.acs.org/doi/10.1021/acs.nanolett.3c02260?ref=PDF-
Direitos: dc.rightsAcesso Restrito-
Palavras-chave: dc.subjectGrafeno Kirigami-
Palavras-chave: dc.subjectCoeficiente de desempenho-
Palavras-chave: dc.subjectDinâmica molecular-
Título: dc.titleElastocaloric effect in graphene kirigami-
Aparece nas coleções:Repositório Institucional – UNB

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