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Amorphous conversion in pyrolytic symmetric trinuclear nickel clusters trigger trifunctional electrocatalysts.
Li, Li; Zhao, Hui-Feng; Gan, Mei-Xing; Zhang, Tao; Li, Jia-Ning; Tao, Shi; Peng, Jing; Yu, Hai-Bin; Peng, Xu.
Afiliación
  • Li L; Wuhan National High Magnetic Field Center, School of Physic, Huazhong University of Science and Technology Wuhan 430074 China haibinyu@hust.edu.cn.
  • Zhao HF; Wuhan National High Magnetic Field Center, School of Physic, Huazhong University of Science and Technology Wuhan 430074 China haibinyu@hust.edu.cn.
  • Gan MX; College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 China pengxu@hubu.edu.cn.
  • Zhang T; Wuhan National High Magnetic Field Center, School of Physic, Huazhong University of Science and Technology Wuhan 430074 China haibinyu@hust.edu.cn.
  • Li JN; College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 China pengxu@hubu.edu.cn.
  • Tao S; School of Electronic and Information Engineering, Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology Changshu 215500 China taoshi@cslg.edu.cn.
  • Peng J; Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences Shenzhen 518055 China.
  • Yu HB; Wuhan National High Magnetic Field Center, School of Physic, Huazhong University of Science and Technology Wuhan 430074 China haibinyu@hust.edu.cn.
  • Peng X; College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 China pengxu@hubu.edu.cn.
Chem Sci ; 15(20): 7689-7697, 2024 May 22.
Article en En | MEDLINE | ID: mdl-38784754
ABSTRACT
The pursuit of multifunctional electrocatalysts holds significant importance due to their comprehension of material chemistry. Amorphous materials are particularly appealing, yet they pose challenges in terms of rational design due to their structural disorder and thermal instability. Herein, we propose a strategy that entails the tandem (low-temperature/250-350 °C) pyrolysis of molecular clusters, enabling preservation of the local short-range structures of the precursor Schiff base nickel (Ni3[2(C21H24N3Ni1.5O6)]). The temperature-dependent residuals demonstrate exceptional activity and stability for at least three distinct electrocatalytic processes, including the oxygen evolution reaction (η10 = 197 mV), urea oxidation reaction (η10 = 1.339 V), and methanol oxidation reaction (1358 mA cm-2 at 0.56 V). Three distinct nickel atom motifs are discovered for three efficient electrocatalytic reactions (Ni1 and Ni1' are preferred for UOR/MOR, while Ni2 is preferred for OER). Our discoveries pave the way for the potential development of multifunctional electrocatalysts through disordered engineering in molecular clusters under tandem pyrolysis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Sci Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Sci Año: 2024 Tipo del documento: Article Pais de publicación: Reino Unido