Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates
Highly active oxygen evolution reaction (OER) electrocatalysts are important to effectively transform renewable electricity to fuel and chemicals. In this work, we construct a series of multimetal oxide nanoplate OER electrocatalysts through successive cation exchange followed by electrochemical oxi...
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sg-ntu-dr.10356-1601382022-07-13T05:33:26Z Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates Huang, Wenjing Zhang, Junming Liu, Daobin Xu, Wenjie Wang, Yu Yao, Jiandong Tan, Hui Teng Dinh, Khang Ngoc Wu, Chen Kuang, Min Fang, Wei Dangol, Raksha Song, Li Zhou, Kun Liu, Chuntai Xu, Jian Wei Liu, Bin Yan, Qingyu School of Materials Science and Engineering School of Chemical and Biomedical Engineering School of Mechanical and Aerospace Engineering Environmental Process Modelling Centre Nanyang Environment and Water Research Institute Engineering::Materials Oxygen Evolution Reaction Electronic Structures Highly active oxygen evolution reaction (OER) electrocatalysts are important to effectively transform renewable electricity to fuel and chemicals. In this work, we construct a series of multimetal oxide nanoplate OER electrocatalysts through successive cation exchange followed by electrochemical oxidation, whose electronic structure and diversified metal active sites can be engineered via the mutual synergy among multiple metal species. Among the examined multimetal oxide nanoplates, CoCeNiFeZnCuOx nanoplates exhibit the optimal adsorption energy of OER intermediates. Together with the high electrochemical active surface area, the CoCeNiFeZnCuOx nanoplates manage to deliver a small overpotential of 211 mV at an OER current density of 10 mA cm-2 (η10) with a Tafel slope as low as 21 mV dec-1 in 1 M KOH solution, superior to commercial IrO2 (339 mV at η10, Tafel slope of 55 mV dec-1), which can be stably operated at 10 mA cm-2 (at an overpotential of 211 mV) and 100 mA cm-2 (at an overpotential of 307 mV) for 100 h. Ministry of Education (MOE) National Research Foundation (NRF) The authors gratefully acknowledge the financial support from Singapore MOE AcRF Tier 2 under Grant Nos. 2017-T2-2- 069 and MOE Tier 1 2017-T1-002-009 and 2020-T1-001-031, and National Research Foundation of Singapore (NRF) Investigatorship, Award No. NRF2016NRF-NRFI001-22. We also acknowledge the 111 project (D18023) from Zhengzhou University for their support for this work. 2022-07-13T05:33:26Z 2022-07-13T05:33:26Z 2020 Journal Article Huang, W., Zhang, J., Liu, D., Xu, W., Wang, Y., Yao, J., Tan, H. T., Dinh, K. N., Wu, C., Kuang, M., Fang, W., Dangol, R., Song, L., Zhou, K., Liu, C., Xu, J. W., Liu, B. & Yan, Q. (2020). Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates. ACS Nano, 14(12), 17640-17651. https://dx.doi.org/10.1021/acsnano.0c08571 1936-0851 https://hdl.handle.net/10356/160138 10.1021/acsnano.0c08571 33316158 2-s2.0-85098756140 12 14 17640 17651 en 2017-T2-2-069 2017-T1-002-009 2020-T1-001-031 NRF2016NRF-NRFI001-22 ACS Nano © 2020 American Chemical Society. All rights reserved. |
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Engineering::Materials Oxygen Evolution Reaction Electronic Structures Huang, Wenjing Zhang, Junming Liu, Daobin Xu, Wenjie Wang, Yu Yao, Jiandong Tan, Hui Teng Dinh, Khang Ngoc Wu, Chen Kuang, Min Fang, Wei Dangol, Raksha Song, Li Zhou, Kun Liu, Chuntai Xu, Jian Wei Liu, Bin Yan, Qingyu Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates |
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Highly active oxygen evolution reaction (OER) electrocatalysts are important to effectively transform renewable electricity to fuel and chemicals. In this work, we construct a series of multimetal oxide nanoplate OER electrocatalysts through successive cation exchange followed by electrochemical oxidation, whose electronic structure and diversified metal active sites can be engineered via the mutual synergy among multiple metal species. Among the examined multimetal oxide nanoplates, CoCeNiFeZnCuOx nanoplates exhibit the optimal adsorption energy of OER intermediates. Together with the high electrochemical active surface area, the CoCeNiFeZnCuOx nanoplates manage to deliver a small overpotential of 211 mV at an OER current density of 10 mA cm-2 (η10) with a Tafel slope as low as 21 mV dec-1 in 1 M KOH solution, superior to commercial IrO2 (339 mV at η10, Tafel slope of 55 mV dec-1), which can be stably operated at 10 mA cm-2 (at an overpotential of 211 mV) and 100 mA cm-2 (at an overpotential of 307 mV) for 100 h. |
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School of Materials Science and Engineering |
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School of Materials Science and Engineering Huang, Wenjing Zhang, Junming Liu, Daobin Xu, Wenjie Wang, Yu Yao, Jiandong Tan, Hui Teng Dinh, Khang Ngoc Wu, Chen Kuang, Min Fang, Wei Dangol, Raksha Song, Li Zhou, Kun Liu, Chuntai Xu, Jian Wei Liu, Bin Yan, Qingyu |
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Article |
author |
Huang, Wenjing Zhang, Junming Liu, Daobin Xu, Wenjie Wang, Yu Yao, Jiandong Tan, Hui Teng Dinh, Khang Ngoc Wu, Chen Kuang, Min Fang, Wei Dangol, Raksha Song, Li Zhou, Kun Liu, Chuntai Xu, Jian Wei Liu, Bin Yan, Qingyu |
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Huang, Wenjing |
title |
Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates |
title_short |
Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates |
title_full |
Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates |
title_fullStr |
Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates |
title_full_unstemmed |
Tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates |
title_sort |
tuning the electronic structures of multimetal oxide nanoplates to realize favorable adsorption energies of oxygenated intermediates |
publishDate |
2022 |
url |
https://hdl.handle.net/10356/160138 |
_version_ |
1738844814077591552 |