Artículos de revistas
Sensing the quantized reactivity of graphene
Fecha
2021-09-08Registro en:
Analytica Chimica Acta, v. 1177.
1873-4324
0003-2670
10.1016/j.aca.2021.338735
2-s2.0-85108812921
Autor
Universidade Estadual Paulista (UNESP)
Institución
Resumen
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.