超亲水性
电极
电解
电流(流体)
电流密度
材料科学
电解水
纳米技术
润湿
化学
电解质
电气工程
工程类
复合材料
物理
物理化学
量子力学
作者
Seok-Ju Jeong,Ungsoo Kim,Sangjin Lee,Yihan Zhang,Eunbin Son,Kyoung Jin Choi,Young‐Kyu Han,Jeong Min Baik,Hyesung Park
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-02-29
标识
DOI:10.1021/acsnano.3c12533
摘要
Water electrolysis is emerging as a promising renewable-energy technology for the green production of hydrogen, which is a representative and reliable clean energy source. From economical and industrial perspectives, the development of earth-abundant non-noble metal-based and bifunctional catalysts, which can simultaneously exhibit high catalytic activities and stabilities for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER), is critical; however, to date, these types of catalysts have not been constructed, particularly, for high-current-density water electrolysis at the industrial level. This study developed a heterostructured zero-dimensional (0D)–one-dimensional (1D) PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF)-Ni3S2 as a self-supported catalytic electrode via interface and morphology engineering. This unique heterodimensional nanostructure of the PBSCF-Ni3S2 system demonstrates superaerophobic/superhydrophilic features and maximizes the exposure of the highly active heterointerface, endowing the PBSCF-Ni3S2 electrode with outstanding electrocatalytic performances in both HER and OER and exceptional operational stability during the overall water electrolysis at high current densities (500 h at 500 mA cm–2). This study provides important insights into the development of catalytic electrodes for efficient and stable large-scale hydrogen production systems.
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