Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing

A novel hydrogen (H2) sensor was developed using acid-etched optical fiber coated with zinc oxide (ZnO) nanorods. The sensing performance was done by comparing the acid-etched fiber coated with ZnO nanorods with and without decorated Palladium (Pd). The conventional optical single-mode fiber (SMF) w...

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Main Authors:	Nur Farahin, Ishak, Nor Akmar, Mohd Yahya, Mohd Hanif, Yaacob, Auni Hamimi, Idris, Harun, S. W., Norazlina, Saidin
Format:	Article
Language:	English
Published:	Elsevier 2019
Subjects:	QD Chemistry TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/26485/ http://umpir.ump.edu.my/id/eprint/26485/ http://umpir.ump.edu.my/id/eprint/26485/ http://umpir.ump.edu.my/id/eprint/26485/1/Optical%20fiber%20coated%20Zinc%20Oxide%20%28ZnO%29%20nanorods%20decorated.pdf

id	ump-26485
recordtype	eprints
spelling	ump-264852019-12-06T03:56:18Z http://umpir.ump.edu.my/id/eprint/26485/ Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing Nur Farahin, Ishak Nor Akmar, Mohd Yahya Mohd Hanif, Yaacob Auni Hamimi, Idris Harun, S. W. Norazlina, Saidin QD Chemistry TP Chemical technology A novel hydrogen (H2) sensor was developed using acid-etched optical fiber coated with zinc oxide (ZnO) nanorods. The sensing performance was done by comparing the acid-etched fiber coated with ZnO nanorods with and without decorated Palladium (Pd). The conventional optical single-mode fiber (SMF) with a diameter of 125 μm has been modified as a transducing platform by etching it to 11 μm diameter using hydrofluoric acid (HF) to enhance the evanescent field of the light propagates in the fiber core. The etched fiber was coated with ZnO nanorods via hydrothermal process by using seeding and growth solution method. The sensing layer was characterized through Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray (EDX) and X-Ray Diffraction (XRD) to verify the properties of ZnO. Catalyst Palladium (Pd) was sputtered onto the ZnO nanorods to improve H2 detection. The developed sensor operating temperature was found to be 150 °C that produces 6.36 dBm increase in response towards the 1% concentration of H2 in synthetic air. It was then tested with different concentration of H2. The sensor decorated with Pd has better performance in sensing compared to non-decorated Pd based on the output power versus time. The sensor best response and recovery times is 6 and 5 min respectively, for acid-etched optical fiber coated with ZnO nanorods decorated with Pd for 0.75% of H2 concentrations at 150 °C. The results indicate the optical fiber sensor might improve the performance towards H2 as oppose to the conventional electrical sensor. Elsevier 2019-08-20 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/26485/1/Optical%20fiber%20coated%20Zinc%20Oxide%20%28ZnO%29%20nanorods%20decorated.pdf Nur Farahin, Ishak and Nor Akmar, Mohd Yahya and Mohd Hanif, Yaacob and Auni Hamimi, Idris and Harun, S. W. and Norazlina, Saidin (2019) Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing. Optical Materials, 96 (109291). pp. 1-7. ISSN 0925-3467 https://doi.org/10.1016/j.optmat.2019.109291 https://doi.org/10.1016/j.optmat.2019.109291
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry TP Chemical technology
spellingShingle	QD Chemistry TP Chemical technology Nur Farahin, Ishak Nor Akmar, Mohd Yahya Mohd Hanif, Yaacob Auni Hamimi, Idris Harun, S. W. Norazlina, Saidin Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing
description	A novel hydrogen (H2) sensor was developed using acid-etched optical fiber coated with zinc oxide (ZnO) nanorods. The sensing performance was done by comparing the acid-etched fiber coated with ZnO nanorods with and without decorated Palladium (Pd). The conventional optical single-mode fiber (SMF) with a diameter of 125 μm has been modified as a transducing platform by etching it to 11 μm diameter using hydrofluoric acid (HF) to enhance the evanescent field of the light propagates in the fiber core. The etched fiber was coated with ZnO nanorods via hydrothermal process by using seeding and growth solution method. The sensing layer was characterized through Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray (EDX) and X-Ray Diffraction (XRD) to verify the properties of ZnO. Catalyst Palladium (Pd) was sputtered onto the ZnO nanorods to improve H2 detection. The developed sensor operating temperature was found to be 150 °C that produces 6.36 dBm increase in response towards the 1% concentration of H2 in synthetic air. It was then tested with different concentration of H2. The sensor decorated with Pd has better performance in sensing compared to non-decorated Pd based on the output power versus time. The sensor best response and recovery times is 6 and 5 min respectively, for acid-etched optical fiber coated with ZnO nanorods decorated with Pd for 0.75% of H2 concentrations at 150 °C. The results indicate the optical fiber sensor might improve the performance towards H2 as oppose to the conventional electrical sensor.
format	Article
author	Nur Farahin, Ishak Nor Akmar, Mohd Yahya Mohd Hanif, Yaacob Auni Hamimi, Idris Harun, S. W. Norazlina, Saidin
author_facet	Nur Farahin, Ishak Nor Akmar, Mohd Yahya Mohd Hanif, Yaacob Auni Hamimi, Idris Harun, S. W. Norazlina, Saidin
author_sort	Nur Farahin, Ishak
title	Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing
title_short	Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing
title_full	Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing
title_fullStr	Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing
title_full_unstemmed	Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing
title_sort	optical fiber coated zinc oxide (zno) nanorods decorated with palladium (pd) for hydrogen sensing
publisher	Elsevier
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/26485/ http://umpir.ump.edu.my/id/eprint/26485/ http://umpir.ump.edu.my/id/eprint/26485/ http://umpir.ump.edu.my/id/eprint/26485/1/Optical%20fiber%20coated%20Zinc%20Oxide%20%28ZnO%29%20nanorods%20decorated.pdf
first_indexed	2023-09-18T22:41:17Z
last_indexed	2023-09-18T22:41:17Z
_version_	1777416931708502016

Optical fiber coated Zinc Oxide (ZnO) nanorods decorated with Palladium (Pd) for hydrogen sensing

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