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Interface Coordination Engineering of P-Fe(3)O(4)/Fe@C Derived from an Iron-Based Metal Organic Framework for pH-Universal Water Splitting
Developing electrocatalysts with high energy conversion efficiency is urgently needed. In this work, P-Fe(3)O(4)/Fe@C electrodes with rich under-coordinated Fe atom interfaces are constructed for efficient pH-universal water splitting. The introduction of under-coordinated Fe atoms into the P-Fe(3)O...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10343528/ https://www.ncbi.nlm.nih.gov/pubmed/37446424 http://dx.doi.org/10.3390/nano13131909 |
Sumario: | Developing electrocatalysts with high energy conversion efficiency is urgently needed. In this work, P-Fe(3)O(4)/Fe@C electrodes with rich under-coordinated Fe atom interfaces are constructed for efficient pH-universal water splitting. The introduction of under-coordinated Fe atoms into the P-Fe(3)O(4)/Fe@C interface can increase the local charge density and polarize the 3d orbital lone electrons, which promotes water adsorption and activation to release more H(*), thus elevating electrocatalytic activity. As a donor-like catalyst, P-Fe(3)O(4)/Fe@C displays excellent electrocatalytic performance with overpotentials of 160 mV and 214 mV in acidic and alkaline electrolytes at 10 mA cm(−2), in addition to pH-universal long-term stability. |
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