Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation

Abstract: The deposition of molybdenum multisulfide thin-film photoanodes from the metal�organic precursor CpMo(SMe)22 (1), at different deposition time has been investigated. Four different films were deposited at 550 °C under constant argon gas flow for 10, 15, 20, and 25 min, respectively. T...

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Main Authors: Lim, C.E., Ooi, M.L., Wong, R.C.S., Neo, K.E., Mumtaz, A., Mazhar, M., Mohamed, N.M., Saheed, M.S.M.
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Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.24977 /
Published: Springer Nature 2019
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071097277&doi=10.1007%2fs13204-019-00957-y&partnerID=40&md5=07d3bd159b1b2808bdfd5aedf47966ee
http://eprints.utp.edu.my/24977/
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spelling utp-eprints.249772021-08-27T08:34:58Z Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation Lim, C.E. Ooi, M.L. Wong, R.C.S. Neo, K.E. Mumtaz, A. Mazhar, M. Mohamed, N.M. Saheed, M.S.M. Abstract: The deposition of molybdenum multisulfide thin-film photoanodes from the metal�organic precursor CpMo(SMe)22 (1), at different deposition time has been investigated. Four different films were deposited at 550 °C under constant argon gas flow for 10, 15, 20, and 25 min, respectively. The surface morphology of these films analyzed with FE-SEM and AFM showed the presence of compact 1D rod-like structure of MoS2/Mo2S3in a homogeneous form. The average diameter of the 1D compact MoS2/Mo2S3 composite nanorod arrays was found in the range of 155�298 nm deposited for different time durations. EDX analysis showed a consistency where the Mo-to-S ratio was approximately 3:4.5 and demonstrated the overall composition of the 1D MoS2/Mo2S3 composite nanorod arrays. The XRD analysis of the thin film indicated the presence of monoclinic Mo2S3 and rhombohedral MoS2composite system. Moreover, the photocurrent density of 20 min deposited thin film is observed to be 4 mA/cm2 with highest photosensitivity of 6.78 at the overpotential of 0.3 V vs Ag/AgCl under the simulated light intensity of 100 mW/cm2 (AM 1.5G). The electrochemical impedance spectroscopy (EIS) also showed improved charge transportation with highest lifetime of the photoexcited charges in 20 min deposited thin film in comparison to the other deposition time durations. This study provides the optimized synthesis conditions for producing molybdenum-based multisulfide nanostructures and the deposition duration for their deployment in solar-based devices. Graphical abstract: Complex CpMo(SMe)22 (1) has been used as a single source precursor for fabrication of MoS2/Mo2S3 composite nanorod arrays on FTO glass substrate and tested for photoelectrochemical hydrogen generation. Figure not available: see fulltext.. © 2019, King Abdulaziz City for Science and Technology. Springer Nature 2019 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071097277&doi=10.1007%2fs13204-019-00957-y&partnerID=40&md5=07d3bd159b1b2808bdfd5aedf47966ee Lim, C.E. and Ooi, M.L. and Wong, R.C.S. and Neo, K.E. and Mumtaz, A. and Mazhar, M. and Mohamed, N.M. and Saheed, M.S.M. (2019) Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation. Applied Nanoscience (Switzerland), 9 (6). pp. 1281-1292. http://eprints.utp.edu.my/24977/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Abstract: The deposition of molybdenum multisulfide thin-film photoanodes from the metal�organic precursor CpMo(SMe)22 (1), at different deposition time has been investigated. Four different films were deposited at 550 °C under constant argon gas flow for 10, 15, 20, and 25 min, respectively. The surface morphology of these films analyzed with FE-SEM and AFM showed the presence of compact 1D rod-like structure of MoS2/Mo2S3in a homogeneous form. The average diameter of the 1D compact MoS2/Mo2S3 composite nanorod arrays was found in the range of 155�298 nm deposited for different time durations. EDX analysis showed a consistency where the Mo-to-S ratio was approximately 3:4.5 and demonstrated the overall composition of the 1D MoS2/Mo2S3 composite nanorod arrays. The XRD analysis of the thin film indicated the presence of monoclinic Mo2S3 and rhombohedral MoS2composite system. Moreover, the photocurrent density of 20 min deposited thin film is observed to be 4 mA/cm2 with highest photosensitivity of 6.78 at the overpotential of 0.3 V vs Ag/AgCl under the simulated light intensity of 100 mW/cm2 (AM 1.5G). The electrochemical impedance spectroscopy (EIS) also showed improved charge transportation with highest lifetime of the photoexcited charges in 20 min deposited thin film in comparison to the other deposition time durations. This study provides the optimized synthesis conditions for producing molybdenum-based multisulfide nanostructures and the deposition duration for their deployment in solar-based devices. Graphical abstract: Complex CpMo(SMe)22 (1) has been used as a single source precursor for fabrication of MoS2/Mo2S3 composite nanorod arrays on FTO glass substrate and tested for photoelectrochemical hydrogen generation. Figure not available: see fulltext.. © 2019, King Abdulaziz City for Science and Technology.
format Article
author Lim, C.E.
Ooi, M.L.
Wong, R.C.S.
Neo, K.E.
Mumtaz, A.
Mazhar, M.
Mohamed, N.M.
Saheed, M.S.M.
spellingShingle Lim, C.E.
Ooi, M.L.
Wong, R.C.S.
Neo, K.E.
Mumtaz, A.
Mazhar, M.
Mohamed, N.M.
Saheed, M.S.M.
Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation
author_sort Lim, C.E.
title Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation
title_short Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation
title_full Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation
title_fullStr Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation
title_full_unstemmed Facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation
title_sort facile synthesis of molybdenum multisulfide composite nanorod arrays from single-source precursor for photoelectrochemical hydrogen generation
publisher Springer Nature
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85071097277&doi=10.1007%2fs13204-019-00957-y&partnerID=40&md5=07d3bd159b1b2808bdfd5aedf47966ee
http://eprints.utp.edu.my/24977/
_version_ 1741196899476570112
score 11.62408

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