Hybrid photocathode based on a Ni molecular catalyst and Sb 2 Se 3 for solar H 2 production.
D Alicia Garcia-OsorioThomas P ShalveyLiam BanerjiKhezar H SaeedGaia NeriLaurie J PhillipsOliver S HutterCarla CasadevallDaniel Antón-GarcíaErwin ReisnerJonathan D MajorAlexander J CowanPublished in: Chemical communications (Cambridge, England) (2023)
We report a H 2 evolving hybrid photocathode based on Sb 2 Se 3 and a precious metal free molecular catalyst. Through the use of a high surface area TiO 2 scaffold, we successfully increased the Ni molecular catalyst loading from 7.08 ± 0.43 to 45.76 ± 0.81 nmol cm -2 , achieving photocurrents of 1.3 mA cm -2 at 0 V vs. RHE, which is 81-fold higher than the device without the TiO 2 mesoporous layer.