Functionalization of Liquid-Exfoliated Two-Dimensional 2H-MoS2
Dr. Claudia Backes, Dr. Nina C. Berner, Xin Chen, Paul Lafargue, Pierre LaPlace, Mark Freeley, Prof. Georg S. Duesberg, Prof. Jonathan N. Coleman and Dr. Aidan R. McDonald
Article first published online: 21 JAN 2015 | DOI: 10.1002/anie.201409412
Surface modification: Functionalization of liquid-exfoliated, defect-free, layered 2H-MoS2 was achieved through coordination of metal carboxylate salts by basal-plane sulfur atoms. The surface-coordinated metal center acts as an anchor for ligating organic functionalities. X-ray photoelectron spectroscopy (XPS) provides strong evidence for the coordination of MoS2 surface sulfur atoms to the M(OAc)2 salt (see picture).