Sensing the quantized reactivity of graphene

Lopes, Laís C. [UNESP]; Bueno, Paulo R. [UNESP]

Sensing the quantized reactivity of graphene

Data

2021-09-08

Autores

Lopes, Laís C.

Bueno, Paulo R.

Tipo

Artigo

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.