Enhanced triboelectric nanogenerators and triboelectric nanosensor using chemically modified TiO2 nanomaterials

Zong Hong Lin; Yannan Xie; Ya Yang; Sihong Wang; Guang Zhu; Zhong Lin Wang

doi:10.1021/nn401256w

Enhanced triboelectric nanogenerators and triboelectric nanosensor using chemically modified TiO₂ nanomaterials

Zong Hong Lin, Yannan Xie, Ya Yang, Sihong Wang, Guang Zhu, Zhong Lin Wang

Research output: Journal Publication › Article › peer-review

275 Citations (Scopus)

Abstract

Mechanical energy harvesting based on triboelectric effect has been proven to be a simple, cost-effective, and robust method for electricity generation. In this study, we developed a rationally designed triboelectric nanogenerator (TENG) by utilizing the contact electrification between a polytetrafluoroethylene (PTFE) thin film and a layer of TiO₂ nanomaterial (nanowire and nanosheet) array. The as-developed TENG was systematically studied and demonstrated as a self-powered nanosensor toward catechin detection. The high sensitivity (detection limit of 5 μM) and selectivity are achieved through a strong interaction between Ti atoms of TiO₂ nanomaterial and enediol group of catechin. The output voltage and current density were increased by a factor of 5.0 and 2.9, respectively, when adsorbed with catechin of a saturated concentration, because of the charge transfer from catechin to TiO₂. This study demonstrates the possibility of improving the electrical output of TENG through chemical modification.

Original language	English
Pages (from-to)	4554-4560
Number of pages	7
Journal	ACS Nano
Volume	7
Issue number	5
DOIs	https://doi.org/10.1021/nn401256w
Publication status	Published - 28 May 2013
Externally published	Yes

Keywords

TiO
catechin
charge transfer
chemical modification
nanosensor
triboelectric effect

ASJC Scopus subject areas

General Materials Science
General Engineering
General Physics and Astronomy

Access to Document

10.1021/nn401256w

Cite this

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title = "Enhanced triboelectric nanogenerators and triboelectric nanosensor using chemically modified TiO2 nanomaterials",

abstract = "Mechanical energy harvesting based on triboelectric effect has been proven to be a simple, cost-effective, and robust method for electricity generation. In this study, we developed a rationally designed triboelectric nanogenerator (TENG) by utilizing the contact electrification between a polytetrafluoroethylene (PTFE) thin film and a layer of TiO2 nanomaterial (nanowire and nanosheet) array. The as-developed TENG was systematically studied and demonstrated as a self-powered nanosensor toward catechin detection. The high sensitivity (detection limit of 5 μM) and selectivity are achieved through a strong interaction between Ti atoms of TiO2 nanomaterial and enediol group of catechin. The output voltage and current density were increased by a factor of 5.0 and 2.9, respectively, when adsorbed with catechin of a saturated concentration, because of the charge transfer from catechin to TiO2. This study demonstrates the possibility of improving the electrical output of TENG through chemical modification.",

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T1 - Enhanced triboelectric nanogenerators and triboelectric nanosensor using chemically modified TiO2 nanomaterials

AU - Lin, Zong Hong

AU - Xie, Yannan

AU - Yang, Ya

AU - Wang, Sihong

AU - Zhu, Guang

AU - Wang, Zhong Lin

PY - 2013/5/28

Y1 - 2013/5/28

N2 - Mechanical energy harvesting based on triboelectric effect has been proven to be a simple, cost-effective, and robust method for electricity generation. In this study, we developed a rationally designed triboelectric nanogenerator (TENG) by utilizing the contact electrification between a polytetrafluoroethylene (PTFE) thin film and a layer of TiO2 nanomaterial (nanowire and nanosheet) array. The as-developed TENG was systematically studied and demonstrated as a self-powered nanosensor toward catechin detection. The high sensitivity (detection limit of 5 μM) and selectivity are achieved through a strong interaction between Ti atoms of TiO2 nanomaterial and enediol group of catechin. The output voltage and current density were increased by a factor of 5.0 and 2.9, respectively, when adsorbed with catechin of a saturated concentration, because of the charge transfer from catechin to TiO2. This study demonstrates the possibility of improving the electrical output of TENG through chemical modification.

AB - Mechanical energy harvesting based on triboelectric effect has been proven to be a simple, cost-effective, and robust method for electricity generation. In this study, we developed a rationally designed triboelectric nanogenerator (TENG) by utilizing the contact electrification between a polytetrafluoroethylene (PTFE) thin film and a layer of TiO2 nanomaterial (nanowire and nanosheet) array. The as-developed TENG was systematically studied and demonstrated as a self-powered nanosensor toward catechin detection. The high sensitivity (detection limit of 5 μM) and selectivity are achieved through a strong interaction between Ti atoms of TiO2 nanomaterial and enediol group of catechin. The output voltage and current density were increased by a factor of 5.0 and 2.9, respectively, when adsorbed with catechin of a saturated concentration, because of the charge transfer from catechin to TiO2. This study demonstrates the possibility of improving the electrical output of TENG through chemical modification.

KW - TiO

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