Journal
CHEMICAL ENGINEERING JOURNAL
Volume 286, Issue -, Pages 339-346Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.10.080
Keywords
Surface modification; g-C3N4; Hydrazinolysis; Photo-catalytic hydrogen evolution; Noble metal free
Categories
Funding
- Central South University
- Chinese Natural Science Foundation [51102107]
- Zhejiang NSF [LY12B02021]
- 521 talent program of ZSTU
- King Abdullah University of Science and Technology
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The graphitic carbon nitride (g-C3N4) usually is thought to be an inert material and it's difficult to have the surface terminated NH2 groups functionalized. By modifying the g-C3N4 surface with hydrazine, the diazanyl group was successfully introduced onto the g-C3N4 surface, which allows the introduction with many other function groups. Here we illustrated that by reaction of surface hydrazine group modified g-C3N4 with CS2 under basic condition, a water electrolysis active group C(=S)SNi can be implanted on the g-C3N4 surface, and leads to a noble metal free hydrogen evolution catalyst. This catalyst has 40% hydrogen evolution efficiency compare to the 3 wt% Pt photo precipitated g-C3N4, with only less than 0.2 wt% nickel. (C) 2015 Elsevier B.V. All rights reserved.
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