Integrated core-shell assembly of Ni3S2 nanowires and CoMoP nanosheets as highly efficient bifunctional electrocatalysts for overall water splitting

MnOxHy-modified CoMoP/NF nanosheet arrays as hydrogen evolution reaction and oxygen evolution reaction bifunctional catalysts under alkaline conditions

“…Based on the above results, MnO x H y /CoMoP/NF reflected wonderful HER and OER dual-function catalytic activity and stability, and its excellent performance was mainly attributed to the following factors: (i) the catalyst was in situ grown on nickel foam, showing superb mechanical adhesion and electrical conductivity; (ii) the CoMoP 2D nanosheet structure hindered the aggregation of MnO x H y , thus exposing more active sites; and (iii) the heterogeneous structure of CoMoP and MnO x H y had a strong interfacial coupling effect, which enhanced electron transfer and promoted synergy. 49,50…”

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.…”

Solar‐Driven Hydrogen Evolution from Value‐Added Waste Treatment

“…Not only does H 2 own superior heating value than conventional fuel (2.4, 2.8, and 4.0 times of methane, gasoline, and coal), [ 1–3 ] but also it plays a crucial role in energy grid, effectively bridging different resource and value‐added chemicals synthesis (i.e., ammonia production, crude oil hydrogenation). [ 4,5 ] However, H 2 market currently is still dominated by gray hydrogen (obtained by reformation of fossil fuels such as coal and natural gas), [ 6–8 ] while green hydrogen (produced from renewable energy such electricity, [ 9–16 ] solar energy, [ 17–20 ] and etc.) takes up a minor percentage.…”