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Título:
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Enhanced-performance bio-triboelectric nanogenerator based on starch polymer electrolyte obtained by a cleanroom-free processing method
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Autores:
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Ccorahua, R. ;
Huaroto, J. ;
Luyo, C. ;
Quintana, M. ;
Vela, E.A.
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier, 2019-07-04T16:59:32Z
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Nota general:
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info:eu-repo/semantics/restrictedAccess
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
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Idiomas:
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Inglés
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Palabras clave:
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Editados por otras instituciones
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Artículos
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Artículos en revistas indizadas
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Resumen:
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The study of triboelectric nanogenerators (TENGs) has focused widely on the issue of elevating triboelectrifying capacity. A new recently discovered phenomena of the use of polymers electrolytes for TENGs has been shown to be positive. However, this has not been studied yet in a wide range of materials. Renewable materials, such as biopolymer electrolytes, are still poorly understood regarding their relation to TENG performance. Herein, a polymer electrolyte starch-based bio-TENG was fabricated using a low-cost processing method. The films were electrically characterized at distinct loads, frequencies, thicknesses. Moreover, we complexed the starch polymer with CaCl 2 to increase the triboelectrifying capacity and performance. Starch films at 0.5% of salt concentration reached the highest voltage output (1.2 V), exceeding by three-fold of the initial output of the non-complexed pristine biopolymer (0.4 V). Furthermore, the electrical output performance varies positively at both thinner film thicknesses and elevated loads while moisture of films has been proved to be a critical parameter in the electrical performance of TENGs, showing that well dried films performed a higher electrical output than moist samples. Furthermore, despite crack generation after fatigue, starch electrolyte films of TENGs showed an inalterable electrical performance suitable for a bunch of applications. To demonstrate one of these applications we achieved to turn on 100 LEDs using starch electrolyte and silicone ecoflex as opponents in a TENG. © 2019 Elsevier Ltd
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En línea:
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http://doi.org/10.1016/j.nanoen.2019.03.018
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