In this work, the exposed facets of rhodium nanoparticles as cocatalysts on TiO2-photocatalysed hydrogen production using UV-LEDs as the light source was evaluated. The rhodium nanocubes were the most efficient as normalised with a hydrogen production of 22.4 mmol h-1 m-2, as normalised using the amount of cocatalyst adsorbed on TiO2, the average size and the shape. These results point toward a better production by {100} exposed facets of Rh nanoparticles in the conditions tested.

Shape effects of Rh-supported TiO2 photocatalysis in Hydrogen Evolution Reaction

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