The designed Mn-modified CoS₂ catalyst exhibits outstanding bifunctional electrocatalytic performances toward hydrogen evolution reaction and hydrazine oxidation reaction for high-efficiency energy-saving H₂ production by water-assisted electrolysis.

A self-powered dual hydrogen production system constructed by combining a Zn–H ₂ battery and an overall hydrazine splitting unit with Rh single atoms supported on oxygen-functionalized Ti ₃ C ₂ O _x bifunctional catalyst achieves a promising H ₂ generation rate of 45.77 mmol h ⁻¹ .

The electrosynthesis of hydrogen peroxide (H₂O₂) from oxygen reduction reaction (ORR) via a two-electron pathway provides an appealing alternative to the energy-intensive anthraquinone route; however, the development of ORR with high selectivity and durability for H₂O₂ production is still challenging. Herein, we demonstrate an active and stable catalyst, composing of highly dispersed Ag nanoclusters on N-doped hollow carbon spheres (NC-Ag/NHCS), which can effectively reduce O₂ molecules into H₂O₂ with a selectivity of 89%–91% in a potential range from 0.2 to 0.7 V (vs. reversible hydrogen electrode (RHE)) in acidic media. Strikingly, NC-Ag/NHCS achieve a mass activity of 27.1 A·g⁻¹ and a yield rate of 408 mmol·g_cat.⁻¹·h⁻¹ at 0.7 V, both of which are comparable with the best-reported results. Furthermore, NC-Ag/NHCS enable catalyzing H₂O₂ production with a stable current density over 48-h electrolysis and only about 9.8% loss in selectivity after 10,000 cycles. Theoretical analyses indicate that Ag nanoclusters can contribute more electrons to favor the protonation of adsorbed O₂, thus leading to a high H₂O₂ selectivity. This work confirms the great potential of metal nanocluster-based materials for H₂O₂ electrosynthesis under ambient conditions.

Functional branched group design of a ligand to improve the stability of CsPbBr₃ quantum dots for phosphor-converted applications

This review has summarized recent porous carbon applications for Zn–air batteries, and the interactions between catalytic sites and carbon nanostructures are summarized to explore the potential innovative approaches for ZAB performance enhancement.