Modes of Fe Incorporation in Co–Fe (Oxy)hydroxide Oxygen Evolution Electrocatalysts

Abstract

Experimental SectionPrecursor solution preparation and catalystdeposition Co(Fe)O x H y thin films were electrodeposited from 0.1 m Co(NO 3 ) 2 ·6 H 2 O( Strem Chemicals, 99.999 %t race metal basis) and

Ultrathin sulfate-intercalated NiFe-layered double hydroxide nanosheets for efficient electrocatalytic oxygen evolution

“…4c). 45,46 To further illustrate the OER mechanism of U-LDH(SO 4 2À ), Ni(OH) 2 was prepared by a method similar to that for U-LDH(SO 4 2À ) ( Fig. S9, ESI †).…”

Single Step Grown NiFe Sponges as Efficient Water Splitting Electrocatalysts in Alkaline Medium

“…They work to reduce the energy barriers and bring in faster kinetics. However, the prohibitive cost and the scarcity of these catalysts make them less attractive for widespread commercial applications and hence new and novel alternatives are scouted for their replacement in commercial technologies . Inexpensive transition metals (TMs) (eg.…”

“…Inexpensive transition metals (TMs) (eg. Ni, Co, Fe, etc) and compounds of TMs such as oxides and layered double hydroxides are being investigated extensively for these half‐cell reactions, where they are found to be exhibiting ‘fairly good’ (low overpotential and high current density) OER activities in basic media, while TM phosphides, sulphides, chalcogenides, nitrides, and carbides are promising in acidic solutions from an HER point of view . However, a bifunctional electrocatalyst based on TM which exhibits good HER and OER in the same electrolyte is still highly elusive.…”

Synergy of Cobalt Iron Tetrathiomolybdate Coated on Cobalt Iron Carbonate Hydroxide Hydrate Nanowire Arrays for Overall Water Splitting

“…In conventional commercial production, Pt is the highest HER catalyst while RuO 2 is the optimal OER catalyst, nevertheless, the scarcity and costliness of those catalysts hinder their wide uses. [12,13] Accordingly, it is highly desired to develop efficient non-noble bifunctional catalysts for water splitting.Transition metal layered double hydroxides are considered to promising materials for OER to reduce the overpotential and promote electrolysis efficiency, [14][15][16][17][18] however, most of them have poor catalytic performance toward HER. As we all know, transition metal tetrathiomolybdate show remarkably efficient catalytic performance in HER.…”

“…Transition metal layered double hydroxides are considered to promising materials for OER to reduce the overpotential and promote electrolysis efficiency, [14][15][16][17][18] however, most of them have poor catalytic performance toward HER. As we all know, transition metal tetrathiomolybdate show remarkably efficient catalytic performance in HER.…”