Resumen:
Composite nanomaterials comprise emerging materials for triboelectric nanogenerators (TENGs), as they provide higher voltage output than pristine polymer-based systems. Currently, efforts are aimed at improving the charge transfer between the tribolayers, which could be obtained by nanomaterial doping. Herein, the effect of synthesized single-walled carbon nanohorns (SWCNHs), an alternative to conventional carbon nanotubes (CNTs), on two different materials, polyvinyl alcohol (PVA) and polydimethylsiloxane (PDMS) is studied. In both cases, the addition of SWCNHs increases the dielectric constant of the layers. The TENG with the modified PDMS (mPDMS) showed the maximum voltage output, almost duplicating the one obtained with the pristine sample. Furthermore, a possible Internet of Things (IoT) application has been demonstrated, with the use of wireless technology and Lo-Ra communications as a gait sensor to provide evolution and information regarding the health condition and the footprint of a patient.
Resumen divulgativo:
Agregar nanocuernos de carbono a materiales mejora la salida eléctrica en nanogeneradores. Los que se basan en PDMS (polidimetilsiloxano) modificado casi duplica el voltaje. Un sensor inteligente en el calzado usa esta tecnología para monitorear la marcha y la salud vía señales inalámbricas.
Palabras Clave: IoT; single-walled carbon nanohorns; SWCNHs; TENGS
Índice de impacto JCR-JIF y cuartil WoS: 4,800 - Q1 (2023)
Referencia DOI:
https://doi.org/10.1002/pc.30061
In press: Mayo 2025.
Cita:
J. Xu, A. Vázquez-López, J. Sánchez Del Río Sáez, J. de la Vega, I. Collado, S. G. Prolongo, R. Giannetti, J. Wu, D.Y. Wang, Single-Walled Carbon Nanohorns Functionalization of PVA/PDMS for Flexible Triboelectric Nanogenerators: IoT Remote Gait Sensor. Polymer Composites.
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