Breaking the scaling relations of oxygen evolution reaction on amorphous NiFeP nanostructures with enhanced activity for overall seawater splitting

A Unique NiOOH@FeOOH Heteroarchitecture for Enhanced Oxygen Evolution in Saline Water

“…Yan et al only observed the formation of NiOOH on heterostructured Ni 5 P 2 /FeP 4 nanoboxes throughout all the applied potentials in 1 m KOH. [13] In contrast to these findings, for the NiFeP in our study, although the formation of NiOOH is quite similar to those reports, a FeOOH layer is rapidly formed after the NiFeP is immersed into alkaline saline water. This intrinsic difference is attributed to the different preparation methods which could lead to different surface structure of NiFeP.…”

“…[12] Very recently, Liu et al reported the formation of NiOOH and FeOOH species on amorphous NiFeP surface under OER operations in alkaline saline water. [13] Nevertheless, the detailed information on the active sites, the corresponding reaction pathways, and mechanisms in the OER process on the metal nitrides or phosphides still remain unclear. [14] On the basis of these studies, we suspect that the leaching of metal ions and the oxidation of metallic metal nitrides or phosphides under OER operations in alkaline saline water might result in the formation of metal oxy(hydroxide) with some special structures, which acts as the active reaction sites.…”

Construction of MnxCoyO4/Ti electrocatalysts for efficient bifunctional water splitting

“…The required voltages of Co x P–Fe 3 P, CoP/CNFS and NiFeOP are 1.62, 1.65 and 1.69 V, respectively. 65–67 Compared with the performance of catalysts reported in the literature (Table S3†), the results indicate that Mn x Co y O 4 /Ti can be comparable to many high-performance catalysts. Mn x Co y O 4 /Ti (Mn : Co = 1 : 2) exhibits excellent bifunctionality and can be used as a promising catalyst for two half reactions in water splitting.…”

Large‐Scale Synthesis of Spinel NixMn3‐xO4 Solid Solution Immobilized with Iridium Single Atoms for Efficient Alkaline Seawater Electrolysis

“…[3] Over the past few years, numerous works have been devoted to explore efficient OER catalysts, including transition metal oxides, [4][5][6] (oxy)hydroxides, [7][8][9] sulfides, [10][11][12] phosphides, [13][14][15] and nitrides. [16][17][18] Moreover, part of them even prevails over the benchmark IrO 2 /RuO 2 in the OER activity and stability, [19][20][21] which certainly invigorates the blossom of the water electrolyzer technique. However, the freshwater feeds may become a bottleneck for large-scale water electrolysis.…”