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Perfect Is Perfect: Nickel Prussian Blue Analogue as A High-Efficiency Electrocatalyst for Hydrogen Peroxide Production.
Xi, Yamin; Xiang, Yitong; Zhang, Chaoqi; Bao, Tong; Zou, Yingying; Zou, Jin; Wei, Guangfeng; Wang, Lei; Xu, Hongyi; Yu, Chengzhong; Liu, Chao.
Afiliación
  • Xi Y; East China Normal University, School of Chemistry and Molecular Engineering, CHINA.
  • Xiang Y; East China Normal University, School of Chemistry and Molecular Engineering, CHINA.
  • Zhang C; East China Normal University, School of Chemistry and Molecular Engineering, CHINA.
  • Bao T; East China Normal University, School of Chemistry and Molecular Engineering, CHINA.
  • Zou Y; East China Normal University, School of Chemistry and Molecular Engineering, UNITED STATES OF AMERICA.
  • Zou J; University of Queensland, Materials Engineering and Centre for Microscopy and Microanalysis, Materials Engineering and Centre for Microscopy and Microanalysis, University of, Australia, AUSTRALIA.
  • Wei G; Tongji University, School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, China, CHINA.
  • Wang L; Stockholm University, Department of Materials and Environmental Chemistry, 10691, Stockholm, SWEDEN.
  • Xu H; The University of Queensland, School of Chemistry and Molecular Biosciences, School of Chemistry and Molecular Biosciences, Australia, AUSTRALIA.
  • Yu C; East China Normal University, School of Chemistry and Molecular Engineering, CHINA.
  • Liu C; East China Normal University, School of Chemistry and Molecular Engineering, No.500 Dongchuan Road, 200241, Shanghai, CHINA.
Angew Chem Int Ed Engl ; : e202413866, 2024 Aug 22.
Article en En | MEDLINE | ID: mdl-39175142
ABSTRACT
Prussian blue analogues (PBA) are a large family of functional materials with diverse applications such as in electrochemical fields. However, their use in the emerging two-electron oxygen reduction reaction for clean production of hydrogen peroxide (H2O2) is lagging. Herein, a general solvent exchange induced reconstruction strategy is demonstrated, through which an abnormal NiNi-PBA superstructure is synthesized as a high-performance electrocatalyst for H2O2 generation. The resultant NiNi-PBA superstructure has a stoichiometric composition with saturated lattice water, and a leaf-like morphology composed of interconnected small-size nanosheets with identical orientation and predominate {210} side surface exposure. Our studies show that the Ni-N centers on {210} facets are the active sites, and the saturated lattice H2O favors a six-coordinated environment that results in high selectivity. The "perfect" structure including stoichiometric composition and ideal facet exposure leads to a high selectivity of ~100% and H2O2 yield of 5.7 mol g-1 h-1, superior to the reported MOF-based electrocatalysts and most other electrocatalysts.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Alemania