Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater Splitting
Abstract Benefitting from the maximum atom utilization efficiency, special size quantum effects and tailored active sites, single‐atom catalysts (SACs) have been promising candidates for bifunctional catalysts toward water splitting. Besides, due to the unique structure and properties, some amorphou...
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| Format: | Article |
| Language: | English |
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Wiley
2023-06-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202300342 |
| _version_ | 1797797025451868160 |
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| author | Dong Feng Pengyan Wang Rui Qin Wenjie Shi Lei Gong Jiawei Zhu Qianli Ma Lei Chen Jun Yu Suli Liu Shichun Mu |
| author_facet | Dong Feng Pengyan Wang Rui Qin Wenjie Shi Lei Gong Jiawei Zhu Qianli Ma Lei Chen Jun Yu Suli Liu Shichun Mu |
| author_sort | Dong Feng |
| collection | DOAJ |
| description | Abstract Benefitting from the maximum atom utilization efficiency, special size quantum effects and tailored active sites, single‐atom catalysts (SACs) have been promising candidates for bifunctional catalysts toward water splitting. Besides, due to the unique structure and properties, some amorphous materials have been found to possess better performance than their crystalline counterparts in electrocatalytic water splitting. Herein, by combining the advantages of ruthenium (Ru) single atoms and amorphous substrates, amorphous molybdenum‐based oxide stabilized single‐atomic‐site Ru (Ru SAs‐MoO3−x/NF) catalysts are conceived as a self‐supported electrode. By virtue of the large surface area, enhanced intrinsic activity and fast reaction kinetics, the as‐prepared Ru SAs‐MoO3−x/NF electrode effectively drives both oxygen evolution reaction (209 mV @ 10 mA cm−2) and hydrogen evolution reaction (36 mV @ 10 mA cm−2) in alkaline media. Impressively, the assembled electrolyzer merely requires an ultralow cell voltage of 1.487 V to deliver the current density of 10 mA cm−2. Furthermore, such an electrode also exhibits a great application potential in alkaline seawater electrolysis, achieving a current density of 100 mA cm−2 at a low cell voltage of 1.759 V. In addition, Ru SAs‐MoO3−x/NF only has very small current density decay in the long‐term constant current water splitting test. |
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| language | English |
| last_indexed | 2024-03-13T03:41:52Z |
| publishDate | 2023-06-01 |
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| series | Advanced Science |
| spelling | doaj.art-be15e1f6e27246cda064edaa46469e772023-06-23T07:34:34ZengWileyAdvanced Science2198-38442023-06-011018n/an/a10.1002/advs.202300342Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater SplittingDong Feng0Pengyan Wang1Rui Qin2Wenjie Shi3Lei Gong4Jiawei Zhu5Qianli Ma6Lei Chen7Jun Yu8Suli Liu9Shichun Mu10State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaKey Laboratory of Advanced Functional Materials of Nanjing Nanjing Xiaozhuang University Nanjing 211171 ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 ChinaAbstract Benefitting from the maximum atom utilization efficiency, special size quantum effects and tailored active sites, single‐atom catalysts (SACs) have been promising candidates for bifunctional catalysts toward water splitting. Besides, due to the unique structure and properties, some amorphous materials have been found to possess better performance than their crystalline counterparts in electrocatalytic water splitting. Herein, by combining the advantages of ruthenium (Ru) single atoms and amorphous substrates, amorphous molybdenum‐based oxide stabilized single‐atomic‐site Ru (Ru SAs‐MoO3−x/NF) catalysts are conceived as a self‐supported electrode. By virtue of the large surface area, enhanced intrinsic activity and fast reaction kinetics, the as‐prepared Ru SAs‐MoO3−x/NF electrode effectively drives both oxygen evolution reaction (209 mV @ 10 mA cm−2) and hydrogen evolution reaction (36 mV @ 10 mA cm−2) in alkaline media. Impressively, the assembled electrolyzer merely requires an ultralow cell voltage of 1.487 V to deliver the current density of 10 mA cm−2. Furthermore, such an electrode also exhibits a great application potential in alkaline seawater electrolysis, achieving a current density of 100 mA cm−2 at a low cell voltage of 1.759 V. In addition, Ru SAs‐MoO3−x/NF only has very small current density decay in the long‐term constant current water splitting test.https://doi.org/10.1002/advs.202300342amorphous substratebifunctional catalysisRu single atomwater splitting |
| spellingShingle | Dong Feng Pengyan Wang Rui Qin Wenjie Shi Lei Gong Jiawei Zhu Qianli Ma Lei Chen Jun Yu Suli Liu Shichun Mu Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater Splitting Advanced Science amorphous substrate bifunctional catalysis Ru single atom water splitting |
| title | Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater Splitting |
| title_full | Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater Splitting |
| title_fullStr | Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater Splitting |
| title_full_unstemmed | Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater Splitting |
| title_short | Flower‐Like Amorphous MoO3−x Stabilized Ru Single Atoms for Efficient Overall Water/Seawater Splitting |
| title_sort | flower like amorphous moo3 x stabilized ru single atoms for efficient overall water seawater splitting |
| topic | amorphous substrate bifunctional catalysis Ru single atom water splitting |
| url | https://doi.org/10.1002/advs.202300342 |
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