Sensing the quantized reactivity of graphene

Detalhes bibliográficos
Autor(a) principal: Lopes, Laís C. [UNESP]
Data de Publicação: 2021
Outros Autores: Bueno, Paulo R. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.aca.2021.338735
http://hdl.handle.net/11449/233203
Resumo: We demonstrated that the variations measured in the quantum capacitance of single-layer graphene, envisioned here as a conceptual molecular model, depend on the chemical reactivity of the molecule and can be used as an analytical and sensing tool for environmental conditions. The variations are quantized as a function of the environmental changes and can be correlated with chemical reactivity indexes such as chemical hardness and softness. This not only constitutes a proof-of-principle that the chemical reactivity of graphene, as a single molecule, can be determined in situ by measuring the quantum capacitance, but also that these measurements can be used as an analytical tool.
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spelling Sensing the quantized reactivity of grapheneChemical hardnessConceptual density functional theoryGrapheneImpedance spectroscopyQuantum capacitanceSingle-molecule capacitanceWe demonstrated that the variations measured in the quantum capacitance of single-layer graphene, envisioned here as a conceptual molecular model, depend on the chemical reactivity of the molecule and can be used as an analytical and sensing tool for environmental conditions. The variations are quantized as a function of the environmental changes and can be correlated with chemical reactivity indexes such as chemical hardness and softness. This not only constitutes a proof-of-principle that the chemical reactivity of graphene, as a single molecule, can be determined in situ by measuring the quantum capacitance, but also that these measurements can be used as an analytical tool.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Institute of Chemistry São Paulo State University (UNESP)Institute of Chemistry São Paulo State University (UNESP)FAPESP: 2017/24839-0FAPESP: 2018/23577-5Universidade Estadual Paulista (UNESP)Lopes, Laís C. [UNESP]Bueno, Paulo R. [UNESP]2022-05-01T05:29:36Z2022-05-01T05:29:36Z2021-09-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.aca.2021.338735Analytica Chimica Acta, v. 1177.1873-43240003-2670http://hdl.handle.net/11449/23320310.1016/j.aca.2021.3387352-s2.0-85108812921Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAnalytica Chimica Actainfo:eu-repo/semantics/openAccess2022-05-01T05:29:36Zoai:repositorio.unesp.br:11449/233203Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-05-01T05:29:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Sensing the quantized reactivity of graphene
title Sensing the quantized reactivity of graphene
spellingShingle Sensing the quantized reactivity of graphene
Lopes, Laís C. [UNESP]
Chemical hardness
Conceptual density functional theory
Graphene
Impedance spectroscopy
Quantum capacitance
Single-molecule capacitance
title_short Sensing the quantized reactivity of graphene
title_full Sensing the quantized reactivity of graphene
title_fullStr Sensing the quantized reactivity of graphene
title_full_unstemmed Sensing the quantized reactivity of graphene
title_sort Sensing the quantized reactivity of graphene
author Lopes, Laís C. [UNESP]
author_facet Lopes, Laís C. [UNESP]
Bueno, Paulo R. [UNESP]
author_role author
author2 Bueno, Paulo R. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Lopes, Laís C. [UNESP]
Bueno, Paulo R. [UNESP]
dc.subject.por.fl_str_mv Chemical hardness
Conceptual density functional theory
Graphene
Impedance spectroscopy
Quantum capacitance
Single-molecule capacitance
topic Chemical hardness
Conceptual density functional theory
Graphene
Impedance spectroscopy
Quantum capacitance
Single-molecule capacitance
description We demonstrated that the variations measured in the quantum capacitance of single-layer graphene, envisioned here as a conceptual molecular model, depend on the chemical reactivity of the molecule and can be used as an analytical and sensing tool for environmental conditions. The variations are quantized as a function of the environmental changes and can be correlated with chemical reactivity indexes such as chemical hardness and softness. This not only constitutes a proof-of-principle that the chemical reactivity of graphene, as a single molecule, can be determined in situ by measuring the quantum capacitance, but also that these measurements can be used as an analytical tool.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-08
2022-05-01T05:29:36Z
2022-05-01T05:29:36Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.aca.2021.338735
Analytica Chimica Acta, v. 1177.
1873-4324
0003-2670
http://hdl.handle.net/11449/233203
10.1016/j.aca.2021.338735
2-s2.0-85108812921
url http://dx.doi.org/10.1016/j.aca.2021.338735
http://hdl.handle.net/11449/233203
identifier_str_mv Analytica Chimica Acta, v. 1177.
1873-4324
0003-2670
10.1016/j.aca.2021.338735
2-s2.0-85108812921
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Analytica Chimica Acta
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1797790354080006144

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