Multi-interfacial dendritic engineering facilitating congruous intrinsic activity of oxide-carbide/MOF nanostructured multimodal electrocatalyst for hydrogen and oxygen electrocatalysis

Highly efficient tungsten/molybdenum-based electrocatalysts for the oxygen reduction reaction: a review

“…Mo metal clusters can provide electrons for the activation of O 2 and enhance the binding of oxygen-containing intermediates at the Mo site. In 2023, Paudel et al 51 combined WO 3 –WC and MOFs to synthesize the heterostructured dendrite electrocatalyst FeCu–BTC/WO 3 –WC, with enriched active sites and improved ORR performance. Wang et al 52 synthesized Co-NP/MoNCF from Co nanoparticles and a MOF-derived Mo/N polyhedral carbon framework.…”

Ruthenium single atoms implanted on NiS2-FeS2 nanosheet heterostructures for efficacious water electrolysis

“…Therefore, substantial strives have been devoted to the design and synthesis of low-priced, effectual, and enduring earth-abundant transition-metal based electrocatalysts that are bifunctional in nature and indispensable to water splitting for future research. 12–14 The 3d transition-metal-based layered double hydroxides (LDHs), with a general formulation [M 1− x 2+ M x 3+ (OH) 2 ] x + [A x / n n − ] x − · m H 2 O, where M 2+ and M 3+ are bivalent and trivalent metal ions, x = 0.2 to 0.33, and A n − is an intercalating anion, are promising candidates for electrocatalytic behaviors because of the enhanced active sites, unique lamellar structures, high stability, and versatility in morphology and compositions. 15,16 Earth-abundant transition metals like nickel (Ni), iron (Fe), cobalt (Co), manganese (Mn), and vanadium (V) based multimetal LDHs and their corresponding chalcogenides are extensively utilized because of their higher HER and OER catalytic activities than their individual counterparts due to the presence of limitless intrinsic active sites and high tunability in composition and functionality.…”

NiS/Ni3S4 Nanoparticles in a N, S Co-Doped Carbon Matrix for Electrochemical Analysis of Mesalazine in Drug and Biological Samples

“…Among them, nickel sulfides have become the ideal materials in electrochemical sensors due to their adjustable electronic structure, favorable mechanical stability, and various metal valence states. , Especially, nickel sulfides have strong affinity for the targets containing aromatic rings through S–π interactions, thereby providing great advantage for the electrochemical sensing . Nevertheless, the applications of the nickel sulfides still suffer from limitations because of the inherent inadequate electrocatalytic activity and inferior electrical conductivity. − To strengthen the electrocatalytic activities of the nickel sulfides, the construction of heterogeneous nickel sulfides is an ideal strategy. , Usually, the heterogeneous structures can produce more heterojunction interfaces, thereby providing more active sites. , To improve the conductivity, the introduction of carbon materials into the nickel sulfides is a feasible method. , However, direct addition of the carbon matrix unavoidably causes an uneven distribution and accumulation of nickel sulfides, resulting in poor electrocatalytic properties . Thus, it is important to exploit an efficient strategy to uniformly integrate heterogeneous nickel sulfides into conductive carbon matrixes.…”