Scalable synthesis of ultra-small Ru2P@Ru/CNT for efficient seawater splitting

High entropy stabilizing lattice oxygen participation of Ru- based oxides in acidic water oxidation

“…We selected transition metal elements with similar radii and different valence states (Ni 2+ , Cr 3+ , Fe 3+ , Mo 6+ ), and then prepared small-sized (about 6 nm) RuNiMoCrFeO x /CNT nanoparticles with oxygen vacancies by a solvent-free microwave method. 44 In addition, we optimized the composition and found that the RuNiMoCrFeO x /CNT catalyst showed better activity and stability in acidic electrolytes than other Ru-based oxides in this work as well as existing reports. The isotope mass spectrometry detection shows that lattice oxygen is involved in the reaction and the LOM dominates the OER process.…”

CoFe2O4/g-C3N4 intercalated Ti3C2 MXene for efficient electrocatalytic hydrogen evolution reaction

“…9,10 Other possible heterojunction catalysts fabricated with carbon-based materials such as graphene, rGO, and g-C 3 N 4 can catalyze the HER and OER. 5,8 However, other newly developed 2D early transition metal (TM) carbides, nitrides or carbonitrides called "MXenes" with a general form M n+1 X n T z (n = 1, 2, 3), where M is a TM, X is carbon and/or nitrogen and T is the surface terminating group. MXene has gained attention owing to their features: high thermal and metallic conductivity, highly layered structures, and excellent electrical conductivity with a large surface area.…”

“…2 Hydrogen production via electrocatalysis has gained more traction due to the properties associated with the electrocatalyst compared to those of other catalysts. 3–5 Overall water splitting (OWS) produces hydrogen via the hydrogen evolution reaction (HER) and oxygen via the oxygen evolution reaction (OER) at the cathode and anode, respectively as given in eqn (1) and (2).Cathodic reaction: 2H + + 2e − ↔ H 2 Anodic reaction: 2H 2 O ↔ O 2 + 4H + + 4e − …”

Modulating the Electronic Structure on Cobalt Sites by Compatible Heterojunction Fabrication for Greatly Improved Overall Water/Seawater Electrolysis

“…Although the as-prepared CoSe/MoSe 2 was a robust bifunctional electrocatalyst in an alkaline solution, to alleviate the shortage of using fresh water as water resources, electrocatalytic splitting of seawater has been regarded as a valuable approach because of its earth-abundant reserves. 56 Herein, the HER and OER activities were tested in both simulated seawater and alkaline seawater. As shown in Figure 7a,b, CoSe/MoSe 2 required HER overpotentials of 164 and 189 mV in simulated seawater and alkaline seawater, respectively.…”