Facile preparation of polypyrrole-reduced graphene oxide hybrid for enhancing NH3 sensing at room temperature

Jianhua Sun; Xin Shu; Yanli Tian; Zhangfa Tong; Shouli Bai; Ruixian Luo; Dianqing Li; Chung Chiun Liu

doi:10.1016/j.snb.2016.10.047

Facile preparation of polypyrrole-reduced graphene oxide hybrid for enhancing NH₃ sensing at room temperature

Jianhua Sun, Xin Shu, Yanli Tian, Zhangfa Tong, Shouli Bai, Ruixian Luo, Dianqing Li, Chung Chiun Liu

Graduate Institute of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

114 Scopus citations

Abstract

Polypyrrole (PPy)-reduced graphene oxide (rGO) hybrid was successfully synthesized by a facile in situ polymerization. The as-synthesized PPy nanoparticles with diameter of ca. 80 nm were uniformly distributed on the surface of the rGO sheets to prepare the hybrid of PPy/rGO. Then the pure PPy and their hybrids were loaded on the substrate of flexible polyethylene terephthalate (PET) film to construct a thin film NH₃ sensor, which has the advantages of being flexible, economical, portable and able to operable at room temperature (RT). The gas-sensing results reveal that the 5 wt% rGO-PPy hybrid based sensor not only exhibits the highest response to 10 ppm NH₃, which is 2.5 times higher than that of pure PPy, but also excellent selectivity to some of VOCs. The enhancement of gas-sensing properties may be attributed to the π-π stacking and H-bonding formation between PPy and rGO, larger surface accessibility and fast transport of carriers.

Original language	English
Pages (from-to)	658-664
Number of pages	7
Journal	Sensors and Actuators, B: Chemical
Volume	241
DOIs	https://doi.org/10.1016/j.snb.2016.10.047
State	Published - 31 Mar 2017

Keywords

NH sensor
Polyethylene terephthalate substrate
Polypyrrole
Reduced graphene oxide

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10.1016/j.snb.2016.10.047

Cite this

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title = "Facile preparation of polypyrrole-reduced graphene oxide hybrid for enhancing NH3 sensing at room temperature",

abstract = "Polypyrrole (PPy)-reduced graphene oxide (rGO) hybrid was successfully synthesized by a facile in situ polymerization. The as-synthesized PPy nanoparticles with diameter of ca. 80 nm were uniformly distributed on the surface of the rGO sheets to prepare the hybrid of PPy/rGO. Then the pure PPy and their hybrids were loaded on the substrate of flexible polyethylene terephthalate (PET) film to construct a thin film NH3 sensor, which has the advantages of being flexible, economical, portable and able to operable at room temperature (RT). The gas-sensing results reveal that the 5 wt% rGO-PPy hybrid based sensor not only exhibits the highest response to 10 ppm NH3, which is 2.5 times higher than that of pure PPy, but also excellent selectivity to some of VOCs. The enhancement of gas-sensing properties may be attributed to the π-π stacking and H-bonding formation between PPy and rGO, larger surface accessibility and fast transport of carriers.",

keywords = "NH sensor, Polyethylene terephthalate substrate, Polypyrrole, Reduced graphene oxide",

author = "Jianhua Sun and Xin Shu and Yanli Tian and Zhangfa Tong and Shouli Bai and Ruixian Luo and Dianqing Li and Liu, {Chung Chiun}",

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T1 - Facile preparation of polypyrrole-reduced graphene oxide hybrid for enhancing NH3 sensing at room temperature

AU - Sun, Jianhua

AU - Shu, Xin

AU - Tian, Yanli

AU - Tong, Zhangfa

AU - Bai, Shouli

AU - Luo, Ruixian

AU - Li, Dianqing

AU - Liu, Chung Chiun

PY - 2017/3/31

Y1 - 2017/3/31

N2 - Polypyrrole (PPy)-reduced graphene oxide (rGO) hybrid was successfully synthesized by a facile in situ polymerization. The as-synthesized PPy nanoparticles with diameter of ca. 80 nm were uniformly distributed on the surface of the rGO sheets to prepare the hybrid of PPy/rGO. Then the pure PPy and their hybrids were loaded on the substrate of flexible polyethylene terephthalate (PET) film to construct a thin film NH3 sensor, which has the advantages of being flexible, economical, portable and able to operable at room temperature (RT). The gas-sensing results reveal that the 5 wt% rGO-PPy hybrid based sensor not only exhibits the highest response to 10 ppm NH3, which is 2.5 times higher than that of pure PPy, but also excellent selectivity to some of VOCs. The enhancement of gas-sensing properties may be attributed to the π-π stacking and H-bonding formation between PPy and rGO, larger surface accessibility and fast transport of carriers.

AB - Polypyrrole (PPy)-reduced graphene oxide (rGO) hybrid was successfully synthesized by a facile in situ polymerization. The as-synthesized PPy nanoparticles with diameter of ca. 80 nm were uniformly distributed on the surface of the rGO sheets to prepare the hybrid of PPy/rGO. Then the pure PPy and their hybrids were loaded on the substrate of flexible polyethylene terephthalate (PET) film to construct a thin film NH3 sensor, which has the advantages of being flexible, economical, portable and able to operable at room temperature (RT). The gas-sensing results reveal that the 5 wt% rGO-PPy hybrid based sensor not only exhibits the highest response to 10 ppm NH3, which is 2.5 times higher than that of pure PPy, but also excellent selectivity to some of VOCs. The enhancement of gas-sensing properties may be attributed to the π-π stacking and H-bonding formation between PPy and rGO, larger surface accessibility and fast transport of carriers.

KW - NH sensor

KW - Polyethylene terephthalate substrate

KW - Polypyrrole

KW - Reduced graphene oxide

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