A Novel Graphite/PDMS based Flexible Triboelectric Nanogenerator

Computational fluid dynamics-based PDMS-graphene triboelectric nanogenerator ‘PG-TENG’ blue energy harvester

“…The materials used in the simulation model PG-TENG added from the pre-defined library of COMSOL material gallery i-e, PDMS, Graphene, an active layer, PDVF as a separation layer, and Aluminum (Al) / Copper (Cu) as the electrode. Graphene/PDMS has a positive charge, and PDVF has a more negative charge [41,51,52].…”

“…H 2 O 2 production using portable fuel cell, and digital sensor etc TENGs based on pure PVDF and PDMS@Graphene composites function in the same fundamental way, with the only difference being in the composition of the friction layers [72,73]. The polarity of the triboelectric materials used in the contact layer (electrode) of the aluminium/copper substrate of the PG-TENG module and the PDMS-Graphene/PVDF active layer are opposite [41]. Figure 1 illustrates a simplified version of the fundamental working-principle of the PG-TENG, which is based on the link outcome of contact electrostatic and electrification induction and operates in a contact-separation mode [42,46].…”

“…Similarly, when PG-TENG A and B separate, there is a change in electric potential color. The CFD simulation data were compared with experimental data [41], which showed that the same size and force applied to the TENG (1.5 cm × 1 cm and 12 N applied force) produced a force response in voltage and current of 14 V/3.2 μA for experimental data and In order to simulate the intricate behavior of the TENG system, the CFD model relies on a number of assumptions and simplifications. These assumptions may not account for all the complexities and nuances of the experimental design, resulting in discrepancies between the two.…”

Advances in Inorganic Nanomaterials for Triboelectric Nanogenerators

“…In addition to its role as an electrode, graphite has also been composited with PDMS to form triboelectric layers for use in TENGs. , A graphite to PDMS ratio of 2:5 could result in the highest output of the TENG, where the maximum open-circuit voltage is 410 V and the short-circuit current is 42 μA.…”

All-Silicone Rubber Triboelectric Nanogenerators with Graphite-Impregnated Electrodes

“…As an example, the use of graphite instead of conventional metal layers (such as Au and Cu) introduces several advantages regarding the substitution of complex processes of fabrication by simple methods based on a rolling process that is favored by frictional properties of graphite as a consequence of its intrinsic lamellar and anisotropic distribution . Based on these properties, the incorporation of graphite in TENGs can be conveniently explored from the mutual improvement in the surface charge density of graphite as a filler in the anode and as a substituent of metal electrodes for use as current collectors. ,− The development of electronic skin and human movement sensing-based devices are favored by the combination of conducting polymers poly­(3-hexylthiophene) percolated in polydimethylsiloxane to perceive strain, pressure, temperature, and visible light and by TENG touchless devices that are applied for the development of noncontact gesture-recognition systems and the production of breathing-based language expression sensors . Silicone rubber-based TENGs introduce advantages over hydrogel-based devices due to their intrinsic properties such as the resistance to acids, bases, chemicals, and water, which is associated with a simple preparation procedure (room temperature) and a most robust interaction with materials that results in prolonged retention in the mechanical properties under repeated use. − On the other hand, hydrogel-based TENGs are promising candidates for biomedical applications due to their superior properties in terms of biocompatibility and excellent electrical, tensile, and self-healable properties .…”