N-Ni-S coordination sites of NiS/C3N4 formed by an electrochemical-pyrolysis strategy for boosting oxygen evolution reaction

Effective Controlling of Ni3S2/MoS2 Porous Hollow Spheres on Ni Foam by Non‐ionic Surfactant Micelles for Oxygen Evolution Reaction

“…The η 10 could not be obtained accurately from linear sweep voltammetry (LSV) curves of Ni 3 S 2 /MoS 2 hollow spheres due to the anodic peaks at 1.39 V, which are attributed to the oxidation reaction of Ni species, resulting in more efficient active sites. The overpotential of Ni 3 S 2 /MoS 2 fabricated from P123 template is lower than the reported Ni-base materials at the same current density (fluorine doped Ni 2 P: η 50 = 410 mV; [32] NiO/NiOOH: η 50 = ~380 mV; [39] Ni 3 S 2 : η 20 = 300 mV; [40] Ni x Co 3 -xO 4 : η 10 = 620 mV; [41] O-NiSe@Ni: η 10 = Figure ChemCatChem 340 mV, [42] NiS/C 3 N 4 : η 10 = ~334 mV, [43] Co 3 O 4 -NiCo 2 O 4 -Ni Foam: η 10 = ~320 mV [44] ), as shown in Tab. S1.…”

Super-resolution imaging of photogenerated charges on CdS/g-C3N4 heterojunctions and its correlation with photoactivity

“…6,7 Fabrication of heterojunctions has been proved an effective way to enhance the charge separation efficiency of g-C 3 N 4 -based photocatalysts. 8,9 Numerous semiconductors have been investigated to form heterojunctions with g-C 3 N 4 , such as metal oxides (e.g., ZnO, TiO 2 and Cu 2 O), 10,11 metal sulfides (e.g., NiS and CdS), 12,13 metal oxyhalides (e.g., BiOCl and BiOBr) 14,15 and other semiconductors (e.g., perovskites and layered double hydroxides). 16,17 Based on the charge separation mechanism, these heterojunctions can be generally classified into two types: a type II heterostructure and an all-solid-state Z-scheme heterostructure.…”

“…, ZnO, TiO 2 and Cu 2 O), 10,11 metal sulfides ( e.g. , NiS and CdS), 12,13 metal oxyhalides ( e.g. , BiOCl and BiOBr) 14,15 and other semiconductors ( e.g.…”

Electrochemical preparation of nano/micron structure transition metal-based catalysts for the oxygen evolution reaction

“…Metal sulfides are considered excellent electrocatalysts because of their higher electrocatalytic activity, good electrical conductivity, convenient preparation, and low cost. [166][167][168] Metal sulfides tend to have better catalytic properties than oxides or hydroxides since most sulfides have excellent electronic conductivity. 169,170 Chai's group synthesized ternary mixed metal Ni-Co-Fe sulfides based on 3D NF (NiCoFeS/NF) via a facile electrodeposition-solvothermal process.…”