W-doped FeNi2S4/Ni3S2/NF with interfacial effect as efficient bifunctional electrocatalyst for overall water splitting

Ultrafast metal corrosion engineering facilitates the construction of CoSx derived from MOFs as enhanced supercapacitor electrodes

“…48,49 At 719.4 eV, there were also satellite peaks, and at 707.1 eV, there was a peak representing the Fe–S bond. 47,50 From Fig. 3e, the split peaks at 161.6 and 162.7 eV suggested that the S was in a +2-valence state, which are typical features of sulfides and coordinated metal ions.…”

Lattice Fluorine and Adsorbed Fluorine Combine with Piezoelectric Polarization to Boost the Separation of Bulk and Surface Carriers of Bi2WO6 for Achieving Efficient Piezo-PEC Performance

“…LSV experiments were measured in 0.25 M Na 2 SO 3 and 0.5 M Na 2 SO 4 electrolytes (Figure S10). η bulk and η surface are calculated by the following formula 58 (7) where J Hd 2 O and J abs are the photocurrent densities, and photon absorption is defined in terms of current density. When Na 2 SO 3 is added to the electrolyte, η surface = 1.…”

“…With the deepening global energy crisis and pollution problems caused by the dwindling global fossil fuel reserves, the development of sustainable new green energy technologies has attracted widespread attention of contemporary society. − Because of its nonpolluting nature and high-energy content per mass, hydrogen energy is considered one of the most exciting future energy sources. − Among the many hydrogen production technologies, photoelectrocatalytic (PEC) hydrogen production using semiconductors as photoelectrodes to absorb solar energy and promote water splitting offers an attractive new way to solve energy problems. − In recent years, a large number of semiconductor materials, such as TiO 2, , WO 3, , Fe 2 O 3, BiVO 4, , and so on, have been applied to hydrogen water splitting operations in the field of PEC to achieve efficient hydrogen production efficiency. Nevertheless, the future applicability of PEC in water splitting has still been hampered by issues related to the high recombination rate of photogenerated charge , and the narrow light response range of the photoelectric electrodes.…”

Engineered Superhydrophilic/Superaerophobic Array Electrode Composed of NiMoO4@NiFeP for High-Performance Overall Water/Seawater Splitting

“…6−8 However, high energy barriers and slow kinetics of the alkaline hydrogen evolution reaction (HER) and especially the oxygen evolution reaction (OER) severely restrict practical applications. 9 Notably, the activity of the HER and OER is generally incompatible in the same electrolyte due to the distinctly different catalytic mechanisms. 10 Developing bifunctional electrocatalysts with outstanding HER and OER activity simultaneously is essential to reduce the manufacturing costs.…”

“…Under the background of the strategic goal of achieving “carbon peak and carbon neutrality”, it is imperatively urgent to develop energy-dense and carbon-neutral fuel as a potential traditional fossil fuel alternative. − Hydrogen is unquestionably regarded as the most promising clean energy carrier due to the advantages of perfect recyclability, clean burning features, and high-energy gravimetric density. , Electrocatalytic water splitting in combination with other intermittent energies (solar, wind, etc.) provides a viable and sustainable approach for scalable green hydrogen production. − However, high energy barriers and slow kinetics of the alkaline hydrogen evolution reaction (HER) and especially the oxygen evolution reaction (OER) severely restrict practical applications . Notably, the activity of the HER and OER is generally incompatible in the same electrolyte due to the distinctly different catalytic mechanisms .…”