NieS/CeO2 electrodes have been prepared by a composite electrodeposition technique using nickel sulfaminate bath containing suspended microor nano-sized CeO2 particles. The composite electrodes exhibit a high activity for the hydrogen evolution reaction (HER) in alkaline solutions, most likely due to the synergistic effects between Ni and CeO2, as well as the increased surface area of the elect...

The hydrogen evolution reaction (HER) is a key process in electrochemical water splitting. To lower the cost and environmental impact of this process, it highly motivated to develop electrocatalysts with low or no content noble metals. Here, we report on an ingenious synthesis hybrid PtxNi1–x form nanoparticle–nanonetwork structure very metal content. possesses important features such as good e...

CoP nanostructures that exposed predominantly (111) crystal facets were synthesized and evaluated for performance as electrocatalysts for the hydrogen-evolution reaction (HER). The branched CoP nanostructures were synthesized by reacting cobalt(II) acetylacetonate with trioctylphosphine in the presence of trioctylphosphine oxide. Electrodes comprised of the branched CoP nanostructures deposited...

Polymeric carbon nitride (p-C3N4) is thermodynamically feasible for photocatalytic overall water splitting. Element doping proved effective in enhancing the performance of p-C3N4. The effect usually interpreted from angle electronic structures by first-principles density functional theory (DFT) calculations. However, information on insufficient understanding and predicting ultimate criterion so...

The development of low-cost, high-efficiency, and stable bifunctional electrocatalysts toward the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is of paramount importance for large-scale water splitting. Here, we develop a new strategy for the first design and synthesis of a NiO@Ni decorated WS2 nanosheet array on carbon cloth (NiO@Ni/WS2/CC) composite. This composite se...

Developing highly efficient low-cost electrocatalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline electrolyte is essential to advance water electrolysis technology. Herein, Ni(OH)2 nanoplates aligned on NiAl foil (Ni(OH)2/NiAl) are developed by simply dealloying NiAl foil in KOH, which exhibits high electrocatalytic activity for OER with a small ov...

The hydrogen evolution reaction (HER), the key for electrocatalytic production of hydrogen, is fundamental importance due to its simplicity yet very important renewable energy. Notwithstanding, Pt still main catalyst this reaction, which not practical industrial deployment technology owing high cost and scarcity Pt. successful synthesis entropy alloy (HEA) nanoparticles opens a new frontier dev...

Silicon is the most widely used semiconductor for solar cells [ 1–4 ] and has also shown promising performances in photoelectrochemical (PEC) cells for hydrogen production. [ 5–10 ] Silicon photoelectrodes with nano/micro structures such as nano/ micro wire array [ 9,11 ] and black silicon [ 7 ] have exhibited improved PEC performances. Silicon nanowire (NW) arrays, in particular, are of consid...

Hydrogen is the mainstream future energy source because of its high density and environmentally-friendly properties. In this study, Fe-Co2P/NPC materials were prepared by wet chemical synthesis method, in which Fe-Co2P nanowires wrapped N, P co-doped carbon layers (NPC) under aging phosphorylation strategies. When Fe-Co2P/NPC/NF was subjected to hydrogen evolution reaction (HER) oxygen (OER), o...

PtAu nanoparticles spontaneously deposited on graphene support, PtAu/rGO, have shown remarkably high catalytic activity for hydrogen evolution reaction (HER) in sulfuric acid solution. SEM images of the PtAu/rGO electrode surface showed that Pt are non-uniform size occupy both edges previously uniform Au and support. XPS analysis atomic percentages were 0.6% 0.3%, respectively. The percentage a...