Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst
Abstract Exploring active, durable catalysts and utilizing external renewable energy sources offer notable opportunities for advancing seawater electrolysis. Here, a multifunctional NiMo-based catalyst (NiMo-H2) composed of bimetallic Ni0.91Mo0.09 nanoparticles on MoO2 nanorods is demonstrated for t...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-03-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-58320-5 |
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| author | Libo Wu Wanheng Lu Wei Li Ong Andrew See Weng Wong Yuanming Zhang Tianxi Zhang Kaiyang Zeng Zhifeng Ren Ghim Wei Ho |
| author_facet | Libo Wu Wanheng Lu Wei Li Ong Andrew See Weng Wong Yuanming Zhang Tianxi Zhang Kaiyang Zeng Zhifeng Ren Ghim Wei Ho |
| author_sort | Libo Wu |
| collection | DOAJ |
| description | Abstract Exploring active, durable catalysts and utilizing external renewable energy sources offer notable opportunities for advancing seawater electrolysis. Here, a multifunctional NiMo-based catalyst (NiMo-H2) composed of bimetallic Ni0.91Mo0.09 nanoparticles on MoO2 nanorods is demonstrated for the alkaline seawater hydrogen evolution reaction. The alloying effect and the nanorod-nanoparticle structure endow this catalyst with high structural stability, rapid electron transfer, and a large surface area. The in situ-generated alloyed nanoparticles have notable light absorption and photothermal conversion capabilities, while the vertically grown nanorods suppress diffuse reflection, enabling efficient localized photoheating. Consequently, light irradiation boosts the catalyst’s activity and it works stably at a current density of 500 mA cm−2 in alkaline seawater. We then assemble the NiMo-H2||NiFe LDH pair in a photothermal anion exchange membrane electrolyzer, and it requires approximately 1.6 V to drive a current of 0.45 A, demonstrating robust durability in overall alkaline seawater electrolysis. This photothermal-promoted seawater electrolysis system shows notable potential for hydrogen production from seawater. |
| format | Article |
| id | doaj-art-7a2cd6bafa524cbd9f33abb3c4f0a592 |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-7a2cd6bafa524cbd9f33abb3c4f0a5922025-08-20T01:54:30ZengNature PortfolioNature Communications2041-17232025-03-0116111510.1038/s41467-025-58320-5Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalystLibo Wu0Wanheng Lu1Wei Li Ong2Andrew See Weng Wong3Yuanming Zhang4Tianxi Zhang5Kaiyang Zeng6Zhifeng Ren7Ghim Wei Ho8Department of Electrical and Computer Engineering, National University of SingaporeDepartment of Electrical and Computer Engineering, National University of SingaporeDepartment of Electrical and Computer Engineering, National University of SingaporeFacility for Analysis Characterization Testing and Simulation (FACTS), Nanyang Technological UniversityDepartment of Electrical and Computer Engineering, National University of SingaporeDepartment of Electrical and Computer Engineering, National University of SingaporeDepartment of Mechanical Engineering, National University of SingaporeDepartment of Physics and Texas Center for Superconductivity at the University of Houston (TcSUH), University of HoustonDepartment of Electrical and Computer Engineering, National University of SingaporeAbstract Exploring active, durable catalysts and utilizing external renewable energy sources offer notable opportunities for advancing seawater electrolysis. Here, a multifunctional NiMo-based catalyst (NiMo-H2) composed of bimetallic Ni0.91Mo0.09 nanoparticles on MoO2 nanorods is demonstrated for the alkaline seawater hydrogen evolution reaction. The alloying effect and the nanorod-nanoparticle structure endow this catalyst with high structural stability, rapid electron transfer, and a large surface area. The in situ-generated alloyed nanoparticles have notable light absorption and photothermal conversion capabilities, while the vertically grown nanorods suppress diffuse reflection, enabling efficient localized photoheating. Consequently, light irradiation boosts the catalyst’s activity and it works stably at a current density of 500 mA cm−2 in alkaline seawater. We then assemble the NiMo-H2||NiFe LDH pair in a photothermal anion exchange membrane electrolyzer, and it requires approximately 1.6 V to drive a current of 0.45 A, demonstrating robust durability in overall alkaline seawater electrolysis. This photothermal-promoted seawater electrolysis system shows notable potential for hydrogen production from seawater.https://doi.org/10.1038/s41467-025-58320-5 |
| spellingShingle | Libo Wu Wanheng Lu Wei Li Ong Andrew See Weng Wong Yuanming Zhang Tianxi Zhang Kaiyang Zeng Zhifeng Ren Ghim Wei Ho Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst Nature Communications |
| title | Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst |
| title_full | Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst |
| title_fullStr | Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst |
| title_full_unstemmed | Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst |
| title_short | Photothermal-promoted anion exchange membrane seawater electrolysis on a nickel-molybdenum-based catalyst |
| title_sort | photothermal promoted anion exchange membrane seawater electrolysis on a nickel molybdenum based catalyst |
| url | https://doi.org/10.1038/s41467-025-58320-5 |
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