Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity

Abstract The triboelectric nanogenerator (TENG) is a promising technology for mechanical energy harvesting. TENG has proven to be an excellent option for power generation but typically TENGs output power drops significantly in humid environments. In this work, the effect of electrode’s material on p...

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Autores principales:	Masoume Karimi, Sadegh Seddighi, Raheleh Mohammadpour
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/455790e3611a4bd0b68b04ac90eedf37
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spelling	oai:doaj.org-article:455790e3611a4bd0b68b04ac90eedf372021-12-02T16:28:51ZNanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity10.1038/s41598-021-95621-32045-2322https://doaj.org/article/455790e3611a4bd0b68b04ac90eedf372021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95621-3https://doaj.org/toc/2045-2322Abstract The triboelectric nanogenerator (TENG) is a promising technology for mechanical energy harvesting. TENG has proven to be an excellent option for power generation but typically TENGs output power drops significantly in humid environments. In this work, the effect of electrode’s material on power output, considering smooth and nanostructured porous structures with various surface hydrophobicity, is investigated under various humidity conditions. A vertical contact-separation mode TENG is experimentally and numerically studied for four surface morphologies of Ti foil, TiO2 thin film, TiO2 nanoparticulated film, and TiO2 nanotubular electrodes. The results show that the TENG electrical output in the flat structures such as Ti foil and TiO2 thin film at 50% RH is reduced to 50% of its initial state, while in the nanoporous structures such as nanoparticle and nanotube arrays, this is observed at RH above 95%. The results show that the use of porous nanostructures in TENG due to their high surface-to-volume, and that the process of water adsorption on the pore leads to better performance than the flat surface in humid environments. Based on our study, employing nanoporous layers is vital for nanogenerators either for power generation or active sensor applications at high humidity conditions.Masoume KarimiSadegh SeddighiRaheleh MohammadpourNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Masoume Karimi Sadegh Seddighi Raheleh Mohammadpour Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
description	Abstract The triboelectric nanogenerator (TENG) is a promising technology for mechanical energy harvesting. TENG has proven to be an excellent option for power generation but typically TENGs output power drops significantly in humid environments. In this work, the effect of electrode’s material on power output, considering smooth and nanostructured porous structures with various surface hydrophobicity, is investigated under various humidity conditions. A vertical contact-separation mode TENG is experimentally and numerically studied for four surface morphologies of Ti foil, TiO2 thin film, TiO2 nanoparticulated film, and TiO2 nanotubular electrodes. The results show that the TENG electrical output in the flat structures such as Ti foil and TiO2 thin film at 50% RH is reduced to 50% of its initial state, while in the nanoporous structures such as nanoparticle and nanotube arrays, this is observed at RH above 95%. The results show that the use of porous nanostructures in TENG due to their high surface-to-volume, and that the process of water adsorption on the pore leads to better performance than the flat surface in humid environments. Based on our study, employing nanoporous layers is vital for nanogenerators either for power generation or active sensor applications at high humidity conditions.
format	article
author	Masoume Karimi Sadegh Seddighi Raheleh Mohammadpour
author_facet	Masoume Karimi Sadegh Seddighi Raheleh Mohammadpour
author_sort	Masoume Karimi
title	Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
title_short	Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
title_full	Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
title_fullStr	Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
title_full_unstemmed	Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
title_sort	nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/455790e3611a4bd0b68b04ac90eedf37
work_keys_str_mv	AT masoumekarimi nanostructuredversusflatcompactelectrodefortriboelectricnanogeneratorsathighhumidity AT sadeghseddighi nanostructuredversusflatcompactelectrodefortriboelectricnanogeneratorsathighhumidity AT rahelehmohammadpour nanostructuredversusflatcompactelectrodefortriboelectricnanogeneratorsathighhumidity
_version_	1718383926567763968

Nanostructured versus flat compact electrode for triboelectric nanogenerators at high humidity

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