Vertically oriented pure BiVO₄ and Mo-doped BiVO₄ nanoworm array films with a diameter of about 100 nm were prepared using the pulsed laser deposition (PLD) technique.

Single-atom Pt immobilized in the lattice of CoP mesoporous nanosheets (MNSs) grown on carbon fiber cloth (CFC) (Pt _at –CoP MNSs/CFC) was synthesized for the HER in alkaline solution and seawater. The improved HER is mainly attributed to water dissociation that becomes spontaneous on Pt _at –CoP MNSs/CFC.

Steel is prone to corrosion induced by chloride ions, which is a serious threat to reinforced concrete structures, especially in marine environments. In this work, we report a novel capsule-based self-recovery system that utilizes chloride ions as a trigger. These capsules, which are functionalized via a smart response to chloride ions, are fabricated using a silver alginate hydrogel that disintegrates upon contact with chloride ions and thereby releases the activated core materials. The experimental results show that the smart capsules respond to a very low concentration of chloride ions (0.1 wt%). Therefore, we believe that this novel capsule-based self-recovery system will exhibit a promising prospect for self-healing or corrosion inhibition applications.

As an emerging semiconductor for PEC cells, metal-free g-CN has generally attracted research attention from the community due to its merits, namely an appropriate bandgap, abundant composition elements, good thermal stability and non-toxicity.