Graphene-type sheets of Nb1-xWxS2: synthesis and in situ functionalization

Faegheh Hoshyargar, Jugal Kishore Sahoo, Muhammad Nawaz Tahir, Aswani Yella, Michael Dietzsch, Filipe Natalio, Robert Branscheid, Ute Kolb, Martin Panthoefer, Wolfgang Tremel

Research output: Contribution to journalArticlepeer-review


Enlightened by the discovery of graphenes, a variety of inorganic analogues have been synthesized and characterized in recent years. Solvated Nb1-xWxS2 analogues of graphene-type sheets were prepared by lithiation and exfoliation of multistacked Nb1-xWxS2 coin roll nanowires (CRNWs), followed by in situ functionalization with gold nanoparticles to synthesize gold-loaded Nb1-xWxS2/Au nanocomposites. The Nb1-xWxS2 nanosheets and the corresponding Nb1-xWxS2/Au nanocomposites were characterized by high resolution electron microscopy (HRTEM), energy-dispersive X-ray spectroscopy (EDX), scanning transmission electron microscopy (STEM), dynamic light scattering (DLS) and scanning force microscopy (AFM). The graphene-type sheets are stable in water and other solvents and can be functionalized similarly as chalcogen-terminated surfaces (e.g. with Au nanoparticles).

Original languageEnglish
Pages (from-to)5292-5297
Number of pages6
JournalDalton Transactions
Issue number15
StatePublished - 2013


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