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Crystals 2017, 7(4), 110; doi:10.3390/cryst7040110

Functionalisation of Colloidal Transition Metal Sulphides Nanocrystals: A Fascinating and Challenging Playground for the Chemist

1
Istituto di Chimica della Materia Condensata e di Tecnologie per l’Energia, ICMATE-CNR, via Marzolo 1, I-35131 Padova, Italy
2
Dipartimento di Scienze Chimiche, Università degli Studi di Padova and INSTM, UdR Padova, via Marzolo 1, I-35131 Padova, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Roberto Comparelli
Received: 27 December 2016 / Revised: 22 March 2017 / Accepted: 24 March 2017 / Published: 14 April 2017
(This article belongs to the Special Issue Colloidal Nanocrystals: Synthesis, Characterization and Application)
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Abstract

Metal sulphides, and in particular transition metal sulphide colloids, are a broad, versatile and exciting class of inorganic compounds which deserve growing interest and attention ascribable to the functional properties that many of them display. With respect to their oxide homologues, however, they are characterised by noticeably different chemical, structural and hence functional features. Their potential applications span several fields, and in many of the foreseen applications (e.g., in bioimaging and related fields), the achievement of stable colloidal suspensions of metal sulphides is highly desirable or either an unavoidable requirement to be met. To this aim, robust functionalisation strategies should be devised, which however are, with respect to metal or metal oxides colloids, much more challenging. This has to be ascribed, inter alia, also to the still limited knowledge of the sulphides surface chemistry, particularly when comparing it to the better established, though multifaceted, oxide surface chemistry. A ground-breaking endeavour in this field is hence the detailed understanding of the nature of the complex surface chemistry of transition metal sulphides, which ideally requires an integrated experimental and modelling approach. In this review, an overview of the state-of-the-art on the existing examples of functionalisation of transition metal sulphides is provided, also by focusing on selected case studies, exemplifying the manifold nature of this class of binary inorganic compounds. View Full-Text
Keywords: metal sulfides; transition metal sulfides; colloids; nanocrystals; functionalization; surface chemistry; bioimaging; derivatization; modelling; zinc sulfides; molybdenum sulfides metal sulfides; transition metal sulfides; colloids; nanocrystals; functionalization; surface chemistry; bioimaging; derivatization; modelling; zinc sulfides; molybdenum sulfides
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Gross, S.; Vittadini, A.; Dengo, N. Functionalisation of Colloidal Transition Metal Sulphides Nanocrystals: A Fascinating and Challenging Playground for the Chemist. Crystals 2017, 7, 110.

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