Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis
Herein, we report the synthesis of selectively face-centered cubic structured ruthenium nanospheres covered in graphitic carbon (denoted as Ru@C) using an effective and innovative pulsed laser ablation in liquid strategy. The Ru@C‒200 catalyst exhibited a low overpotential of 48 mV for hydrogen evo...
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KeAi Communications Co. Ltd.
2025-09-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667141725000382 |
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| author | Huieun Ahn Raja Arumugam Senthil Sieon Jung Anuj Kumar Mohd Ubaidullah Myong Yong Choi |
| author_facet | Huieun Ahn Raja Arumugam Senthil Sieon Jung Anuj Kumar Mohd Ubaidullah Myong Yong Choi |
| author_sort | Huieun Ahn |
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| description | Herein, we report the synthesis of selectively face-centered cubic structured ruthenium nanospheres covered in graphitic carbon (denoted as Ru@C) using an effective and innovative pulsed laser ablation in liquid strategy. The Ru@C‒200 catalyst exhibited a low overpotential of 48 mV for hydrogen evolution reaction (HER) and an ultralow oxidation potential of −8 mV (vs. reversible hydrogen electrode) for hydrazine oxidation reaction (HzOR) at 10 mA cm−2, maintaining long-term durability for over 100 h, demonstrating its dual-functional activity. This performance was attributed to the robust synergistic coupling between the Ru core and C shell, as confirmed by in situ electrochemical studies and density functional theory investigations. As a result, overall hydrazine splitting (OHzS) in the Ru@C‒200||Ru@C‒200 system requires only low cell voltages of 0.11 and 0.70 V at 10 and 100 mA cm−2, respectively. Moreover, a rechargeable zinc–hydrazine (Zn–Hz) battery, fabricated using the Ru@C‒200 catalyst as the cathode and Zn foil as the anode, exhibited a high energy efficiency of 90% and efficient H2 production, validating its remarkable ability for practical applications. Notably, coupling Zn–Hz battery with OHzS system encourages self-powered H2 production. This study provides potential guidance for engineering robust electrocatalysts for large-scale H2 production while purifying hydrazine-containing industrial sewage. |
| format | Article |
| id | doaj-art-e4fead9cb62b449ba3bf6ec657fa4392 |
| institution | Kabale University |
| issn | 2667-1417 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | KeAi Communications Co. Ltd. |
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| spelling | doaj-art-e4fead9cb62b449ba3bf6ec657fa43922025-08-24T05:14:56ZengKeAi Communications Co. Ltd.eScience2667-14172025-09-015510040810.1016/j.esci.2025.100408Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysisHuieun Ahn0Raja Arumugam Senthil1Sieon Jung2Anuj Kumar3Mohd Ubaidullah4Myong Yong Choi5Department of Chemistry (BK21 FOUR), Research Institute of Advanced Chemistry, Gyeongsang National University, Jinju 52828, Republic of KoreaDepartment of Chemistry (BK21 FOUR), Research Institute of Advanced Chemistry, Gyeongsang National University, Jinju 52828, Republic of KoreaDepartment of Chemistry (BK21 FOUR), Research Institute of Advanced Chemistry, Gyeongsang National University, Jinju 52828, Republic of KoreaNano-Technology Research Laboratory, Department of Chemistry, GLA University, Mathura, Uttar Pradesh 281406, IndiaDepartment of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Chemistry (BK21 FOUR), Research Institute of Advanced Chemistry, Gyeongsang National University, Jinju 52828, Republic of Korea; Core-Facility Center for Photochemistry & Nanomaterials, Gyeongsang National University, Jinju 52828, Republic of Korea; Corresponding author.Herein, we report the synthesis of selectively face-centered cubic structured ruthenium nanospheres covered in graphitic carbon (denoted as Ru@C) using an effective and innovative pulsed laser ablation in liquid strategy. The Ru@C‒200 catalyst exhibited a low overpotential of 48 mV for hydrogen evolution reaction (HER) and an ultralow oxidation potential of −8 mV (vs. reversible hydrogen electrode) for hydrazine oxidation reaction (HzOR) at 10 mA cm−2, maintaining long-term durability for over 100 h, demonstrating its dual-functional activity. This performance was attributed to the robust synergistic coupling between the Ru core and C shell, as confirmed by in situ electrochemical studies and density functional theory investigations. As a result, overall hydrazine splitting (OHzS) in the Ru@C‒200||Ru@C‒200 system requires only low cell voltages of 0.11 and 0.70 V at 10 and 100 mA cm−2, respectively. Moreover, a rechargeable zinc–hydrazine (Zn–Hz) battery, fabricated using the Ru@C‒200 catalyst as the cathode and Zn foil as the anode, exhibited a high energy efficiency of 90% and efficient H2 production, validating its remarkable ability for practical applications. Notably, coupling Zn–Hz battery with OHzS system encourages self-powered H2 production. This study provides potential guidance for engineering robust electrocatalysts for large-scale H2 production while purifying hydrazine-containing industrial sewage.http://www.sciencedirect.com/science/article/pii/S2667141725000382Pulsed laser ablation in liquidRu@C electrocatalystZinc–hydrazine batteryHybrid water electrolysisEfficient H2 productionHydrazine degradation |
| spellingShingle | Huieun Ahn Raja Arumugam Senthil Sieon Jung Anuj Kumar Mohd Ubaidullah Myong Yong Choi Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis eScience Pulsed laser ablation in liquid Ru@C electrocatalyst Zinc–hydrazine battery Hybrid water electrolysis Efficient H2 production Hydrazine degradation |
| title | Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis |
| title_full | Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis |
| title_fullStr | Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis |
| title_full_unstemmed | Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis |
| title_short | Pulsed laser-tuned ruthenium@carbon interface for self-powered hydrogen production via zinc–hydrazine battery coupled hybrid electrolysis |
| title_sort | pulsed laser tuned ruthenium carbon interface for self powered hydrogen production via zinc hydrazine battery coupled hybrid electrolysis |
| topic | Pulsed laser ablation in liquid Ru@C electrocatalyst Zinc–hydrazine battery Hybrid water electrolysis Efficient H2 production Hydrazine degradation |
| url | http://www.sciencedirect.com/science/article/pii/S2667141725000382 |
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