3D-Architected Alkaline-Earth Perovskites.

3D ceramic architectures are captivating geometrical features with an immense demand in optics. In this work, an additive manufacturing (AM) approach for printing alkaline-earth perovskite 3D microarchitectures is developed. The approach enables custom-made photoresists suited for two-photon lithography, permitting the production of alkaline-earth perovskite (BaZrO , CaZrO , and SrZrO ) 3D structures shaped in the form of octet-truss lattices, gyroids, or inspired architectures like sodalite zeolite, and C buckyballs with micrometric and nanometric feature sizes.

White emission in 3D-printed phosphor microstructures.

Microscale functional materials permit advanced applications in optics and photonics. This work presents the additive manufacturing of three-dimensional structured phosphors emitting red, green, blue, and white. The development is a step forward to realizing additive colour synthesis within complex architectures of relevance in integrated optics or light-emitting sources.

Enhanced Photocatalytic Hydrogen Evolution from Water Splitting on TaO/SrZrO Heterostructures Decorated with CuO/RuO Cocatalysts.

Photocatalytic H generation by water splitting is a promising alternative for producing renewable fuels. This work synthesized a new type of TaO/SrZrO heterostructure with Ru and Cu (RuO/CuO/TaO/SrZrO) using solid-state chemistry methods to achieve a high H production of 5164 μmol g h under simulated solar light, 39 times higher than that produced using SrZrO. The heterostructure performance is compared with other TaO/SrZrO heterostructure compositions loaded with RuO, CuO, or Pt.