Functionalization of Two-Dimensional MoS2: On the Reaction between MoS2 and Organic Thiols
Chen X, Berner NC, Backes C, Duesberg GS, Mcdonald AR (2016)
Publication Type: Journal article
Publication year: 2016
Journal
Book Volume: 55
Pages Range: 5803-5808
Journal Issue: 19
Abstract
Two-dimensional layered transition metal dichalcogenides (TMDs) have attracted great interest owing to their unique properties and a wide array of potential applications. However, due to their inert nature, pristine TMDs are very challenging to functionalize. We demonstrate a general route to functionalize exfoliated 2H-MoS2 with cysteine. Critically, MoS2 was found to be facilitating the oxidation of the thiol cysteine to the disulfide cystine during functionalization. The resulting cystine was physisorbed on MoS2 rather than coordinated as a thiol (cysteine) filling S-vacancies in the 2H-MoS2 surface, as originally conceived. These observations were found to be true for other organic thiols and indeed other TMDs. Our findings suggest that functionalization of two-dimensional MoS2 using organic thiols may not yield covalently or datively tethered functionalities, rather, in this instance, they yield physisorbed disulfides that are easily removed.
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APA:
Chen, X., Berner, N.C., Backes, C., Duesberg, G.S., & Mcdonald, A.R. (2016). Functionalization of Two-Dimensional MoS2: On the Reaction between MoS2 and Organic Thiols. Angewandte Chemie International Edition, 55(19), 5803-5808. https://dx.doi.org/10.1002/anie.201510219
MLA:
Chen, Xin, et al. "Functionalization of Two-Dimensional MoS2: On the Reaction between MoS2 and Organic Thiols." Angewandte Chemie International Edition 55.19 (2016): 5803-5808.
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