Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation
In this study, mixed-addenda polyoxometalates (POMs) were synthesized by self-assembly process accompanied by the introduction of dopants to boost the electrochemical water oxidation performance. A lower onset potential and higher current density were achieved by mixed-addenda POMs compared to prist...
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sg-ntu-dr.10356-1570532022-05-01T07:19:59Z Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation Ong, Boon Chong Lim, Teik-Thye Dong, Zhili School of Materials Science and Engineering School of Civil and Environmental Engineering Engineering::Materials Oxidation Polyoxometalates In this study, mixed-addenda polyoxometalates (POMs) were synthesized by self-assembly process accompanied by the introduction of dopants to boost the electrochemical water oxidation performance. A lower onset potential and higher current density were achieved by mixed-addenda POMs compared to pristine POMs suggesting that the former were more active towards the water oxidation reaction. It was found that at the same applied potential, the induced current of mixed-addenda POMs was almost threefold that of unmodified POMs. A steady current that was attained over several sweep cycles indicating the stability of mixed-addenda POMs. This work provides an insight into future prospective of mixed-addenda POMs as robust water oxidation catalyst under a neutral working environment. The presence of both tungsten and molybdenum as addenda atoms in POMs have tuned their properties and a variety of mixed-addenda POMs can be fabricated through precise control on the synthesis condition to better facilitate a specific application. Ministry of Education (MOE) The authors thank the Ministry of Education (MOE), Singapore (Grant No. RG102/18; Project ID. 2018-T1-001-077) for financial support for this research. 2022-05-01T07:18:59Z 2022-05-01T07:18:59Z 2021 Journal Article Ong, B. C., Lim, T. & Dong, Z. (2021). Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation. MRS Advances, 6(23), 588-593. https://dx.doi.org/10.1557/s43580-021-00123-z 2059-8521 https://hdl.handle.net/10356/157053 10.1557/s43580-021-00123-z 2-s2.0-85112821949 23 6 588 593 en RG102/18 2018-T1-001-077 MRS Advances © 2021 The Author(s), under exclusive licence to The Materials Research Society. All rights reserved. |
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Engineering::Materials Oxidation Polyoxometalates Ong, Boon Chong Lim, Teik-Thye Dong, Zhili Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation |
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In this study, mixed-addenda polyoxometalates (POMs) were synthesized by self-assembly process accompanied by the introduction of dopants to boost the electrochemical water oxidation performance. A lower onset potential and higher current density were achieved by mixed-addenda POMs compared to pristine POMs suggesting that the former were more active towards the water oxidation reaction. It was found that at the same applied potential, the induced current of mixed-addenda POMs was almost threefold that of unmodified POMs. A steady current that was attained over several sweep cycles indicating the stability of mixed-addenda POMs. This work provides an insight into future prospective of mixed-addenda POMs as robust water oxidation catalyst under a neutral working environment. The presence of both tungsten and molybdenum as addenda atoms in POMs have tuned their properties and a variety of mixed-addenda POMs can be fabricated through precise control on the synthesis condition to better facilitate a specific application. |
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School of Materials Science and Engineering |
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School of Materials Science and Engineering Ong, Boon Chong Lim, Teik-Thye Dong, Zhili |
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Article |
author |
Ong, Boon Chong Lim, Teik-Thye Dong, Zhili |
author_sort |
Ong, Boon Chong |
title |
Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation |
title_short |
Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation |
title_full |
Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation |
title_fullStr |
Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation |
title_full_unstemmed |
Mixed-addenda polyoxometalates for enhanced electrochemical water oxidation |
title_sort |
mixed-addenda polyoxometalates for enhanced electrochemical water oxidation |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/157053 |
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1734310301388505088 |