Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splitting
Electrocatalytic seawater splitting is a potential solution to environmental problems, as seawater is a plentiful supply of hydrogen sources in nature. Hence, the development of bifunctional electrodes exhibiting outstanding performance in both the hydrogen evolution reaction (HER) and the oxygen ev...
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Elsevier
2025-01-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025004529 |
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| author | Mahsa Mehravaran Karim Asadpour-Zeynali |
| author_facet | Mahsa Mehravaran Karim Asadpour-Zeynali |
| author_sort | Mahsa Mehravaran |
| collection | DOAJ |
| description | Electrocatalytic seawater splitting is a potential solution to environmental problems, as seawater is a plentiful supply of hydrogen sources in nature. Hence, the development of bifunctional electrodes exhibiting outstanding performance in both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) is essential for the efficacy of total seawater splitting. Herein, we employed a straightforward method for in situ creation of β-Ni(OH)2 on Ni foam, followed by a hydrothermal approach to manufacture MgAlCe-LDH on β-Ni(OH)2/Ni foam. The linear sweep voltammetry (LSV) experiments demonstrate that the MgAlCe-LDH/β-Ni(OH)2/Ni foam exhibits superior performance for both the OER and the HER in a natural seawater electrolyte compared to the MgAlCe-LDH/Ni foam, β-Ni(OH)2/Ni foam, and Ni foam. Consequently, the MgAlCe-LDH/β-Ni(OH)2/Ni foam requires an 80 mV overpotential for OER and 337 mV for HER to attain a current density of 10 mA cm−2. The enhanced electrocatalytic activity of MgAlCe-LDH/β-Ni(OH)2/Ni foam can be attributed to boosting exposed active sites, improving electronic interaction, and increasing charge transfer capacity resulting from the synthesis of MgAlCe-LDH on β-Ni(OH)2/Ni foam. Implementing a two-electrode configuration for the MgAlCe-LDH/β-Ni(OH)2/Ni foam, the total seawater splitting investigation exhibits 1.42 V cell voltage at a current density of 10 mA cm−2 and 25 h long-term stability. |
| format | Article |
| id | doaj-art-94078412a0064cf2a30ac33cf0df5ad9 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Heliyon |
| spelling | doaj-art-94078412a0064cf2a30ac33cf0df5ad92025-02-02T05:28:55ZengElsevierHeliyon2405-84402025-01-01112e42072Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splittingMahsa Mehravaran0Karim Asadpour-Zeynali1Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, IranCorresponding author.; Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 51666-16471, IranElectrocatalytic seawater splitting is a potential solution to environmental problems, as seawater is a plentiful supply of hydrogen sources in nature. Hence, the development of bifunctional electrodes exhibiting outstanding performance in both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) is essential for the efficacy of total seawater splitting. Herein, we employed a straightforward method for in situ creation of β-Ni(OH)2 on Ni foam, followed by a hydrothermal approach to manufacture MgAlCe-LDH on β-Ni(OH)2/Ni foam. The linear sweep voltammetry (LSV) experiments demonstrate that the MgAlCe-LDH/β-Ni(OH)2/Ni foam exhibits superior performance for both the OER and the HER in a natural seawater electrolyte compared to the MgAlCe-LDH/Ni foam, β-Ni(OH)2/Ni foam, and Ni foam. Consequently, the MgAlCe-LDH/β-Ni(OH)2/Ni foam requires an 80 mV overpotential for OER and 337 mV for HER to attain a current density of 10 mA cm−2. The enhanced electrocatalytic activity of MgAlCe-LDH/β-Ni(OH)2/Ni foam can be attributed to boosting exposed active sites, improving electronic interaction, and increasing charge transfer capacity resulting from the synthesis of MgAlCe-LDH on β-Ni(OH)2/Ni foam. Implementing a two-electrode configuration for the MgAlCe-LDH/β-Ni(OH)2/Ni foam, the total seawater splitting investigation exhibits 1.42 V cell voltage at a current density of 10 mA cm−2 and 25 h long-term stability.http://www.sciencedirect.com/science/article/pii/S2405844025004529Total seawater splittingElectrocatalystLayered double hydroxideNi foam |
| spellingShingle | Mahsa Mehravaran Karim Asadpour-Zeynali Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splitting Heliyon Total seawater splitting Electrocatalyst Layered double hydroxide Ni foam |
| title | Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splitting |
| title_full | Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splitting |
| title_fullStr | Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splitting |
| title_full_unstemmed | Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splitting |
| title_short | Bifunctional electrocatalytic performance of MgAlCe-LDH/β-Ni(OH)2/Ni foam in total natural seawater splitting |
| title_sort | bifunctional electrocatalytic performance of mgalce ldh β ni oh 2 ni foam in total natural seawater splitting |
| topic | Total seawater splitting Electrocatalyst Layered double hydroxide Ni foam |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025004529 |
| work_keys_str_mv | AT mahsamehravaran bifunctionalelectrocatalyticperformanceofmgalceldhbnioh2nifoamintotalnaturalseawatersplitting AT karimasadpourzeynali bifunctionalelectrocatalyticperformanceofmgalceldhbnioh2nifoamintotalnaturalseawatersplitting |