Ultra-trace Ru-doping FeNiCo-NC bifunctional electrocatalyst for efficient overall water splitting

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-01-25 DOI:10.1016/j.mseb.2025.118036

Qianqian Lei , Kexin Zhu , Lei Zuo , Su Liu , Yujia Zhao , Jianguo Lv , Hai Yu , Min Zhao , Congrong Wang , Miao Zhang , Lei Yang

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引用次数: 0

Abstract

In this letter, NiCo/NC, FeNiCo/NC, RuFeNiCo-NC were designed and synthetized using a two-step strategy. For FeNiCo/NC and RuFeNiCo-NC, transition metal alloy nanoparticles, such as Fe₃Ni₂ and Co₃Fe₇, are embedded in porous carbon matrix with multi-layered structures. The addition of ruthenium trichloride caused a change in the relative content of Fe₃Ni₂ and Co₃Fe₇ of the sample. As a bifunctional electrocatalyst, the RuFeNiCo-NC-3 only requires overpotential of 330 mV and 60.7 mV to achieve 10 mA cm⁻² for OER and HER, respectively. During overall water splitting, the assembled RuFeNiCo-NC-3//RuFeNiCo-NC-3 cell only needs voltage of 1.57 V to achieve current density of 10 mA cm⁻². This provides a simple approach to prepare low-cost electrocatalyst for excellent overall water splitting.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.