Single-atom Ru Anchored on Co3S4 Nanowires Enabling Ampere‐Level Water Splitting for Multi-Scenarios Green Energy-to-Hydrogen Systems

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-03-17 DOI:10.1016/j.nanoen.2025.110881

Bowen Guo, Wenqiang Li, Haipeng Chen, Heng Zhang, Huabo Li, Xun Feng, Bo Li, Liya Wang, Zhanke Wang, Zongkui Kou

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引用次数: 0

Abstract

Versatile systems capable of high current densities (exceeding 1 A cm⁻²) are essential for advancing hydrogen energy from theoretical to practical applications. Herein, single-atom Ru anchored on cobalt tetrasulfide (Ru-Co₃S₄) nanowires were proposed as an exceptional performance electrocatalyst for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Microstructural analyses, X-ray absorption spectroscopy, and theoretical calculations demonstrate that the Ru atoms doped in Co₃S₄ nanowire with the formation of three-coordinated Ru-S species, which can effectively prevent excessive oxidation of Ru and improve stability. Benefiting from high intrinsic activity, fast charge transfer rate and large amounts of active sites, the Ru-Co₃S₄ catalyst demonstrates a low overpotential of 306 mV for HER and 460 mV cm^-2 for OER at 1 A cm^-2 in 1 M KOH aqueous medium. Additionally, Ru-Co₃S₄ catalysts represent 9.5 times in mass activity (4.27 A mg^-1_Ru) compared to Pt/C (0.45 A mg^-1_Pt). Ru-Co₃S₄ has proven effective for hydrogen generation through electrolysis in both alkaline freshwater and seawater settings. Moreover, the integrated utilization of wind and solar energy in water splitting for hydrogen production systems offers the potential of single atoms Ru doped catalyst for large-scale hydrogen production in the future.

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.