Iron–doped NiCoO 2 nanoplates as efficient electrocatalysts for oxygen evolution reaction

Facile Synthesis and Characterization of MOF‐Derived Porous Co3O4 Composite for Oxygen Evolution Reaction

“…As showed above, A* represent the active sites on the Co 3 O 4 catalyst in basic mediate, the main OER process of the as‐obtained Co 3 O 4 catalysts are as follows : (1) OH − adsorbed on the surface of the Co 3 O 4 to produce adsorbed OH species (A*‐OH); (2) A*‐OH would react with another OH − to generate H 2 O and atomic O (A*‐O), with a free electron produced. (3) A*‐O would further reacted with OH − to form adsorbed OOH species (A*‐OOH).…”

Iron-Doped NiCoP Porous Nanosheet Arrays as a Highly Efficient Electrocatalyst for Oxygen Evolution Reaction

“…NiCoFeP nanosheet arrays were synthesized by a hydrothermal phosphorization reaction. The synthesis process is as follows: , nickel foam (NF, 1 cm × 5 cm) was sonicated in acetone for 10 min, immersed into 3 M HCl for 20 min to dissolve the inert NiO layer on the surface of NF, and then washed for several times by deionized water and ethanol. A 4 mmol amount of total metal precursors (including Ni, Co, and Fe) with different molar ratios, 8 mmol of NH 4 F, and 10 mmol of urea were dissolved into a mixture of 70 mL of DI water with magnetic stirring to form a homogeneous solution.…”

In situ growth of minimal Ir-incorporated CoxNi1-xO nanowire arrays on Ni foam with improved electrocatalytic activity for overall water splitting

“…The Co 2p core-level spectra exhibited two peaks at 780.52 and 796.16 eV, along with satellite peaks at 786.39 and 802.68 eV, which were assigned to the Co 2p3/2 and Co 2p1/2 orbitals, respectively. The spin-orbit split between the two main Co 2p peaks was ~16 eV, which implied that Co existed in the Co 2+ state [33,34]. Similarly, the two peaks with the binding energies of 855.09 (Ni 2p3/2) and 872.88 eV (Ni 2p1/2) that were observed in the high-resolution Ni 2p spectrum originated from Ni 2+ [35][36][37].…”