Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 390, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2023.123186
Keywords
Piezoelectric nanofluids; Hybrid suspensions; Suspension rheology; Rheo-impedance spectroscopy; Shear-induced structure; Structured liquids; Carbon nanotube dispersions
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This study introduces a novel concept of energy harvesting nanofluids composed of hybrid piezoelectric ceramic and polymeric materials (BaTiO3 and PVdF) in PDMS. The development of microstructure and flow-induced structural transitions were elucidated using rheology, rheo-microscope, and impedance spectroscopy. The addition of percolated CNTs enhanced the mechanical and electrical network, leading to improved output voltage (OV). The OV was further increased to approximately 7.5 V by adding traces of PVdF in their hybrid suspensions.
We introduced a novel concept on energy harvesting nanofluids of hybrid piezoelectric ceramic and polymeric (BaTiO3 and PVdF) materials in PDMS. Rheology, rheo-microscope and impedance spectroscopy complementary enabled the elucidation of the development of microstructure and probing the flow-induced structural transitions. Percolated CNTs enhanced the network mechanically and electrically and improved the output voltage (OV). Traces of PVdF further increased the OV to ca. 7.5 V in their hybrid suspensions.
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