What is it about?
This work describes the use of Transition metal phosphides (TMPs) that are low-cost alternatives to precious-metal catalysts for total water electrolysis, offering high efficiency and stability. Electrocatalytic performance of Fe-CoP NFs provide a potential method for the preparation of multifunctional material with hollow structure and offer more hopeful prospects towards obtaining efficient earth-abundant catalysts for water splitting.
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Why is it important?
Fe-doped CoP nanoframes (Fe-CoP NFs) with specific open cage configuration were designed and synthesized. The unique nano-framework structured Fe-CoP material shows overpotentials of only 255 and 122 mV at 10 mA cm-2 for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), respectively, overwhelming most of transition metal phosphides. For overall water splitting, the cell voltage is 1.65 V for Fe-CoP NFs at a current density of 10 mA cm-2
Perspectives
These catalysts are being used for decoupled water electrolysis: https://www.science.org/doi/full/10.1126/sciadv.adi3180
Joydeep Dutta
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This page is a summary of: MOF‐Derived Iron‐Cobalt Phosphide Nanoframe as Bifunctional Electrocatalysts for Overall Water Splitting, Energy & Environmental Materials, May 2024, Tsinghua University Press,
DOI: 10.1002/eem2.12747.
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