Figure Abstract (IMAGE)

Dalian Institute of Chemical Physics, Chinese Academy Sciences

Figure Abstract

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Co atoms are uniformly incorporated in NiS nanoparticles to fabricate homogeneous NiCoS cocatalyst on TiO2 surface by a facile photosynthesis strategy. The optimized NiCoS/TiO2(1:2) photocatalyst display the highest H2 production performance, outperforming the NiS/TiO2 and CoS/TiO2 samples. The incorporated Co atoms break the electron distribution symmetry in NiS, thus essentially increasing electron density of S atoms to weaken S-Had bonds for efficient Had adsorption and desorption, endowing the NiCoS cocatalysts with a highly active H2 evolution process. The integrated homogeneous NiCoS nanoparticles with TiO2 could rapidly transfer photogenerated electrons and efficiently facilitate the interfacial H2 evolution process, thus achieving enhanced photocatalytic H2 generation activity.

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Chinese Journal of Catalysis

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