One-step fabrication of vanadium-doped CoFe PBA nanosheets for efficient oxygen evolution reaction

Abstract

V-CoFe Prussian blue analogue (PBA) nanosheets were synthesized by one-step soaking at room temperature. V-CoFe PBA electrode exhibited low overpotential of 229 mV at 10 mA cm−2 current density for the OER with outstanding long-term stability.

Porous Prussian Blue Analogs Decorated Electrospun Carbon Nanofibers as Efficient Electrocatalyst for Overall Water Splitting

“…The XRD analysis of the prepared CoFe-PBA@CNFs and CoFe-PBA@CNFs-TA-10, as depicted in Figure 3a, reveals diffraction peaks at 17.5 • , 24.9 • , and 35.6 • , corresponding to the crystal faces (200), (220), and (400) of K 2 Co [Fe(CN) 6 ] (JCPDS no. 75-0038), respectively [4]. These distinct diffraction peaks indicate the high crystallinity and purity of the obtained CoFe-PBA nanocubes.…”

“…Hydrogen has emerged as a prominent fuel and has garnered considerable attention [3]. Various methods exist for hydrogen evolution, with electrocatalytic water splitting being widely regarded as a promising solution due to its renewability and environmental sustainability [4][5][6]. Water splitting involves two key reaction processes: the oxygen evolution reaction (OER) and the hydrogen evolution reaction (HER) [7][8][9][10].…”