Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 39, Pages 22500-22506Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta06044h
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Funding
- DST
- JNCASR
- Council of Scientific and Industrial Research (CSIR), India
- SSL
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Monometallic and bimetallic layered phosphosulfides and phosphoselenides, prepared by high temperature solid state reactions, have been subjected to exfoliation to obtain few-layer materials. The photochemical HER activity of these materials has been investigated. Among the ternary MPS3, the nickel compound exhibits the highest HER activity (2.6 mmol h(-1) g(-1)), while MnPS3, ZnPS3 and CdPS3 exhibit low activity, due to their large band gaps and presence of long P-P and M-S bonds. Amongst phosphoselenides, FePSe3 shows a higher HER activity of 1.7 mmol h(-1) g(-1) than the Mn and Cd compounds. The quaternary phosphochalcogenide, Ag0.5In0.5PS3, shows a high photochemical HER activity of 1.9 mmol h(-1) g(-1).
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