Tuning the Composition and Structure of Amorphous Molybdenum Sulfide/Carbon Black Nanocomposites by Radiation Technique for Highly Efficient Hydrogen Evolution.

ABSTRACT: Amorphous molybdenum sulfide/carbon black (MoS_x/C) nanocomposites are synthesized by a facile one-step γ-ray radiation induced reduction process. Amorphous MoS_x shows better intrinsic activity than crystalline MoS₂. And the composition and amorphous structure of MoS_x could be expediently tuned by absorbed dose for excellent catalytic activity. Meanwhile, the addition of carbon black leads to a significant decrease of charge transfer resistance and increase of active sites of MoS_x/C composite. Consequently, MoS_x/C nanocomposite shows Pt-like catalytic activity towards hydrogen evolution reaction (HER), which requires an onset over potential of 40 mV and over potential of 76 mV to achieve a current density of 10 mA cm^-2</

SUBMITTER: Cao P 

PROVIDER: S-EPMC5700052 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature