(3-Aminopropyl) triethoxysilane-based immobilization of Pt/WO3 on a microfiber sensor for high sensitivity hydrogen sensing

Qiao Gao; Bin Liu; Yingying Hu; Juan Liu; Shengpeng Wan; Tao Wu; Xing-Dao He; Ping Lu; Jinhui Yuan; Renli Ma; Fary Ghassemlooy; Gerald Farrell; Qiang Wu

doi:10.1016/j.snb.2023.134268

(3-Aminopropyl) triethoxysilane-based immobilization of Pt/WO3 on a microfiber sensor for high sensitivity hydrogen sensing

Qiao Gao, Bin Liu^*, Yingying Hu, Juan Liu, Shengpeng Wan, Tao Wu, Xing-Dao He, Ping Lu, Jinhui Yuan, Renli Ma, Fary Ghassemlooy, Gerald Farrell, Qiang Wu^*

^*Corresponding author for this work

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Abstract

A novel high stability hydrogen sensor based on a Pt/WO3 coated single-mode tapered-no-core single-mode (STNCS) fiber interferometer is proposed and experimentally studied. The STNCS structure is treated by (3-Aminopropyl) triethoxysilane (APTES) and then coated with Pt/WO3 nanorods. Compared to the traditional method of using poly (dimethylsiloxane) (PDMS) to adhere Pt/WO3 nanorods on the fiber surface, the APTES modified fiber forms strong covalent bonds with Pt/WO3 with stronger adhesion to the fiber surface, resulting in improved long-term stability. Experimental results show that the sensitivity of the sensor varies from -31.05 nm/% to -4.30 nm/% as the hydrogen concentration increases from 0 to 1.04%. The sensor also demonstrates good reproducibility, longer term stability and repeatability.

Original language	English
Article number	134268
Number of pages	8
Journal	Sensors and Actuators B: Chemical
Volume	393
Early online date	7 Jul 2023
DOIs	https://doi.org/10.1016/j.snb.2023.134268
Publication status	E-pub ahead of print - 7 Jul 2023

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1-s2.0-S0925400523009838-mainAccepted author manuscript, 1.29 MBLicence: CC BY
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@article{08e323a8d9ff4c46a5c946658a47b585,

title = "(3-Aminopropyl) triethoxysilane-based immobilization of Pt/WO3 on a microfiber sensor for high sensitivity hydrogen sensing",

abstract = "A novel high stability hydrogen sensor based on a Pt/WO3 coated single-mode tapered-no-core single-mode (STNCS) fiber interferometer is proposed and experimentally studied. The STNCS structure is treated by (3-Aminopropyl) triethoxysilane (APTES) and then coated with Pt/WO3 nanorods. Compared to the traditional method of using poly (dimethylsiloxane) (PDMS) to adhere Pt/WO3 nanorods on the fiber surface, the APTES modified fiber forms strong covalent bonds with Pt/WO3 with stronger adhesion to the fiber surface, resulting in improved long-term stability. Experimental results show that the sensitivity of the sensor varies from -31.05 nm/% to -4.30 nm/% as the hydrogen concentration increases from 0 to 1.04%. The sensor also demonstrates good reproducibility, longer term stability and repeatability.",

keywords = "Fiber interferometer, Hydrogen sensor, Pt-loaded WO",

author = "Qiao Gao and Bin Liu and Yingying Hu and Juan Liu and Shengpeng Wan and Tao Wu and Xing-Dao He and Ping Lu and Jinhui Yuan and Renli Ma and Fary Ghassemlooy and Gerald Farrell and Qiang Wu",

note = "Funding information: This work was supported by the National Natural Science Foundation of China (NSFC) (62175097, 62065013 and 62163029); Natural Science Foundation of Jiangxi Province (20192ACB20031 and 20212BAB202024); Royal Society International Exchanges 2020 Cost Share (NSFC) (IEC\NSFC\201015) and National Natural Science Foundation of China-Royal Society Exchange Programme (62111530153).",

year = "2023",

month = jul,

day = "7",

doi = "10.1016/j.snb.2023.134268",

language = "English",

volume = "393",

journal = "Sensors and Actuators B: Chemical",

issn = "0925-4005",

publisher = "Elsevier",

}

TY - JOUR

T1 - (3-Aminopropyl) triethoxysilane-based immobilization of Pt/WO3 on a microfiber sensor for high sensitivity hydrogen sensing

AU - Gao, Qiao

AU - Liu, Bin

AU - Hu, Yingying

AU - Liu, Juan

AU - Wan, Shengpeng

AU - Wu, Tao

AU - He, Xing-Dao

AU - Lu, Ping

AU - Yuan, Jinhui

AU - Ma, Renli

AU - Ghassemlooy, Fary

AU - Farrell, Gerald

AU - Wu, Qiang

N1 - Funding information: This work was supported by the National Natural Science Foundation of China (NSFC) (62175097, 62065013 and 62163029); Natural Science Foundation of Jiangxi Province (20192ACB20031 and 20212BAB202024); Royal Society International Exchanges 2020 Cost Share (NSFC) (IEC\NSFC\201015) and National Natural Science Foundation of China-Royal Society Exchange Programme (62111530153).

PY - 2023/7/7

Y1 - 2023/7/7

N2 - A novel high stability hydrogen sensor based on a Pt/WO3 coated single-mode tapered-no-core single-mode (STNCS) fiber interferometer is proposed and experimentally studied. The STNCS structure is treated by (3-Aminopropyl) triethoxysilane (APTES) and then coated with Pt/WO3 nanorods. Compared to the traditional method of using poly (dimethylsiloxane) (PDMS) to adhere Pt/WO3 nanorods on the fiber surface, the APTES modified fiber forms strong covalent bonds with Pt/WO3 with stronger adhesion to the fiber surface, resulting in improved long-term stability. Experimental results show that the sensitivity of the sensor varies from -31.05 nm/% to -4.30 nm/% as the hydrogen concentration increases from 0 to 1.04%. The sensor also demonstrates good reproducibility, longer term stability and repeatability.

AB - A novel high stability hydrogen sensor based on a Pt/WO3 coated single-mode tapered-no-core single-mode (STNCS) fiber interferometer is proposed and experimentally studied. The STNCS structure is treated by (3-Aminopropyl) triethoxysilane (APTES) and then coated with Pt/WO3 nanorods. Compared to the traditional method of using poly (dimethylsiloxane) (PDMS) to adhere Pt/WO3 nanorods on the fiber surface, the APTES modified fiber forms strong covalent bonds with Pt/WO3 with stronger adhesion to the fiber surface, resulting in improved long-term stability. Experimental results show that the sensitivity of the sensor varies from -31.05 nm/% to -4.30 nm/% as the hydrogen concentration increases from 0 to 1.04%. The sensor also demonstrates good reproducibility, longer term stability and repeatability.

KW - Fiber interferometer

KW - Hydrogen sensor

KW - Pt-loaded WO

UR - http://www.scopus.com/inward/record.url?scp=85164695205&partnerID=8YFLogxK

U2 - 10.1016/j.snb.2023.134268

DO - 10.1016/j.snb.2023.134268

M3 - Article

VL - 393

JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

SN - 0925-4005

M1 - 134268

ER -

(3-Aminopropyl) triethoxysilane-based immobilization of Pt/WO3 on a microfiber sensor for high sensitivity hydrogen sensing

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