Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/106864
Title: Lithium intercalation compound dramatically influences the electrochemical properties of exfoliated MoS2
Authors: Ambrosi, Adriano
Sofer, Zdeněk
Pumera, Martin
Keywords: DRNTU::Engineering::Materials::Microelectronics and semiconductor materials
Issue Date: 2014
Source: Ambrosi, A., Sofer, Z., & Pumera, M. (2015). Lithium intercalation compound dramatically influences the electrochemical properties of exfoliated MoS2. Small, 11(5), 605-612.
Series/Report no.: Small
Abstract: MoS2 and other transition metal dichalcogenides (TMDs) have recently gained a renewed interest due to the interesting electronic, catalytic, and mechanical properties which they possess when down-sized to single or few layer sheets. Exfoliation of the bulk multilayer structure can be achieved by a preliminary chemical Li intercalation followed by the exfoliation due to the reaction of Li with water. Organolithium compounds are generally adopted for the Li intercalation with n-butyllithium (n-Bu-Li) being the most common. Here, the use of three different organolithium compounds are investigated and compared, i.e., methyllithium (Me-Li), n-butyllithium (n-Bu-Li) and tert-butyllithium (t-Bu-Li), used for the exfoliation of bulk MoS2. Scanning transmission electron microscopy (STEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV) are adopted for a comprehensive characterization of all materials under investigation. In addition, catalytic properties towards the hydrogen evolution reaction (HER) and capacitive properties are also tested. Different organolithium compounds exhibit different extent of Li intercalation resulting in different degrees of exfoliation. The inherent electrochemical behavior of MoS2 consisting of significant anodic and cathodic peaks as well as its capacitive behavior and catalytic properties towards hydrogen evolution reaction are strongly connected to the exfoliation compound used. This research significantly contributes to the development of large-scale synthesis of electrocatalytic MoS2-based materials.
URI: https://hdl.handle.net/10356/106864
http://hdl.handle.net/10220/25154
ISSN: 1613-6810
DOI: 10.1002/smll.201400401
Rights: © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

SCOPUSTM   
Citations

164
Updated on Jul 24, 2020

PublonsTM
Citations

179
Updated on Feb 19, 2021

Page view(s)

362
Updated on Feb 25, 2021

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.