Catalyst Supraparticles: Tuning the Structure of Spray-Dried Pt/SiO Supraparticles via Salt-Based Colloidal Manipulation to Control their Catalytic Performance.

The structure of supraparticles (SPs) is a key parameter for achieving advanced functionalities arising from the combination of different nanoparticle (NP) types in one hierarchical entity. However, whenever a droplet-assisted forced assembly approach is used, e.g.

Supraparticles for naked-eye H indication and monitoring: Improving performance by variation of the catalyst nanoparticles.

The recent transition to H-based energy storage demands reliable H sensors that allow for easy, fast, and reliable detection of leaks. Conventional H detectors are based on the changes of physical properties of H probes induced by subsurface H-atoms to a material such as electrical conductivity. Herein, we report on highly reactive gasochromic H detectors based on the adsorption of H on the material surface.