Structure engineering of electrodeposited NiMo films for highly efficient and durable seawater splitting

Synergistically coupling Pt with Ni towards accelerated water dissociation for enhanced alkaline hydrogen evolution

“…12,29 Meanwhile, Ni is an environmentally friendly and earth-abundant transition metal with excellent corrosion resistance as well as having a more appropriate DG H* value close to that of Pt compared with other non-noble metals such as Co, W, Wo, etc. 27,[35][36][37] Consequently, Ni is anticipated to be a promising candidate in rationally constructing alloys with Pt for an improved alkaline HER through a synergistic mechanism, yet it remains unexplored.…”

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

“…c) Comparison of Tafel slopes and overpotentials required to achieve the current density of 100 mA cm –2 . [ 28,43–48 ] d) TOF values. e) The chronoamperometry curves.…”

A smart strategy of “laser-direct-writing” to achieve scalable fabrication of self-supported MoNi4/Ni catalysts for efficient and durable hydrogen evolution reaction

“…6). 47,48 Herein, the Mo 6+ species on the catalyst surface is inclined to be reduced to Mo 5+ under operation at negative potential. H 3 O + cations produced by the water dissociation are weakly bound to the vacant sites on the metal complex (Mo 5+ –Mo 5+ ) via a dative bond (step 1).…”

“…49 In this paper, Ni 2+ species are present on the MoNi 4 /Ni catalyst surface in the form of Ni(OH) 2 , which accelerates the dissociation of water by building up the surface of Ni(OH)-M(metal). 47,50,51 Therefore, the synergistic effects of Ni 2+ (Ni(OH) 2 ) and Mo 5+ (MoNi 4 ) on the water dissociation and hydrogen adsorption-desorption steps contribute to the excellent HER activity in alkaline media.…”