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A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency

In extension to our previous work, studies have been conducted to illustrate the effect of incorporation of Co2O3 on photo-conversion efficiency of Mn2O3-4TiO(2) composite thin films. Therefore, the bimetallic crystal Mn2Ti4(TFA)(8)(THF)(6)(OH)(4)(O)(2)].0.4THF (1) was mixed with Co(OAc)(2) to fabri...

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Main Authors: Mansoor, Muhammad Adil, Hamzah, Khafidz., Naeem, Rabia, Zubir, Mohd Nashrul Bin Mohd, Yahaya, Nur Azirah, Yusof, F. B., Rozali, Shaifulazuar Bin, Aspanut, Zarina Binti, Ming, Hainan
Format: Article
Published: Interperiodica 2021
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QD Chemistry
Online Access:http://eprints.um.edu.my/34227/
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spelling my.um.eprints.342272022-09-09T02:00:08Z http://eprints.um.edu.my/34227/ A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency Mansoor, Muhammad Adil Hamzah, Khafidz. Naeem, Rabia Zubir, Mohd Nashrul Bin Mohd Yahaya, Nur Azirah Yusof, F. B. Rozali, Shaifulazuar Bin Aspanut, Zarina Binti Ming, Hainan QD Chemistry In extension to our previous work, studies have been conducted to illustrate the effect of incorporation of Co2O3 on photo-conversion efficiency of Mn2O3-4TiO(2) composite thin films. Therefore, the bimetallic crystal Mn2Ti4(TFA)(8)(THF)(6)(OH)(4)(O)(2)].0.4THF (1) was mixed with Co(OAc)(2) to fabricate Mn2O3-Co2O3-4TiO(2) (MCT) thin films via aerosol-assisted chemical vapour deposition (AACVD) method. The thin films were properly characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray (EDX), Atomic Force Microscopy (AFM) and UV-Vis spectroscopy to evaluate their crystalline structure, chemical composition, topography, surface roughness and band gaps. Finally, the films were subjected to record their photo-electrochemical response in terms of Linear Scan Voltammetry (LSV) and Electrochemical Impedance Spectroscopy (EIS) using 0.5 M NaOH electrolyte solution. A photocurrent density of 4.91 mA cm(-2) was observed at 0.65 V vs Ag/AgCl/3M KCl with a promising photo conversion efficiency of 2.86%. Furthermore, impedance studies revealed a decrease in charge transfer resistance (R-ct) from 123.79 to 56.43 ohm under illumination conditions. Interperiodica 2021-06 Article PeerReviewed Mansoor, Muhammad Adil and Hamzah, Khafidz. and Naeem, Rabia and Zubir, Mohd Nashrul Bin Mohd and Yahaya, Nur Azirah and Yusof, F. B. and Rozali, Shaifulazuar Bin and Aspanut, Zarina Binti and Ming, Hainan (2021) A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency. Russian Journal of Inorganic Chemistry, 66 (6). pp. 806-813. ISSN 0036-0236, DOI https://doi.org/10.1134/S0036023621060139 <https://doi.org/10.1134/S0036023621060139>. 10.1134/S0036023621060139
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QD Chemistry
spellingShingle QD Chemistry
Mansoor, Muhammad Adil
Hamzah, Khafidz.
Naeem, Rabia
Zubir, Mohd Nashrul Bin Mohd
Yahaya, Nur Azirah
Yusof, F. B.
Rozali, Shaifulazuar Bin
Aspanut, Zarina Binti
Ming, Hainan
A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency
description In extension to our previous work, studies have been conducted to illustrate the effect of incorporation of Co2O3 on photo-conversion efficiency of Mn2O3-4TiO(2) composite thin films. Therefore, the bimetallic crystal Mn2Ti4(TFA)(8)(THF)(6)(OH)(4)(O)(2)].0.4THF (1) was mixed with Co(OAc)(2) to fabricate Mn2O3-Co2O3-4TiO(2) (MCT) thin films via aerosol-assisted chemical vapour deposition (AACVD) method. The thin films were properly characterized by X-ray diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray (EDX), Atomic Force Microscopy (AFM) and UV-Vis spectroscopy to evaluate their crystalline structure, chemical composition, topography, surface roughness and band gaps. Finally, the films were subjected to record their photo-electrochemical response in terms of Linear Scan Voltammetry (LSV) and Electrochemical Impedance Spectroscopy (EIS) using 0.5 M NaOH electrolyte solution. A photocurrent density of 4.91 mA cm(-2) was observed at 0.65 V vs Ag/AgCl/3M KCl with a promising photo conversion efficiency of 2.86%. Furthermore, impedance studies revealed a decrease in charge transfer resistance (R-ct) from 123.79 to 56.43 ohm under illumination conditions.
format Article
author Mansoor, Muhammad Adil
Hamzah, Khafidz.
Naeem, Rabia
Zubir, Mohd Nashrul Bin Mohd
Yahaya, Nur Azirah
Yusof, F. B.
Rozali, Shaifulazuar Bin
Aspanut, Zarina Binti
Ming, Hainan
author_facet Mansoor, Muhammad Adil
Hamzah, Khafidz.
Naeem, Rabia
Zubir, Mohd Nashrul Bin Mohd
Yahaya, Nur Azirah
Yusof, F. B.
Rozali, Shaifulazuar Bin
Aspanut, Zarina Binti
Ming, Hainan
author_sort Mansoor, Muhammad Adil
title A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency
title_short A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency
title_full A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency
title_fullStr A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency
title_full_unstemmed A tri-metallic (Mn-Co-Ti) oxide photoanode with improved photo-conversion efficiency
title_sort tri-metallic (mn-co-ti) oxide photoanode with improved photo-conversion efficiency
publisher Interperiodica
publishDate 2021
url http://eprints.um.edu.my/34227/
_version_ 1744649165532561408
score 13.211869

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