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NOVCIC, K. IFFELSBERGER, C. NG, S. PUMERA, M.
Original Title
Local electrochemical activity of transition metal dichalcogenides and their heterojunctions on 3D-printed nanocarbon surfaces
Type
journal article in Web of Science
Language
English
Original Abstract
Transition metal dichalcogenides (TMDs) have shown to be promising catalysts for the electrochemical hydrogen evolution reaction (HER) and 3D-printing enables fast prototyping and manufacturing of water splitting devices. However, the merging of TMDs with complex 3D-printed surfaces and nanostructures as well as their localized characterization remains challenging. In this work, electrodeposition of MoS2 and WS2 and their heterojunctions are used to modify thermally activated 3D-printed nanocarbon structures. Their electrochemical performance for the HER is investigated macroscopically by linear sweep voltammetry and microscopically by scanning electrochemical microscopy. This study demonstrates different local HER active sites of MoS2 and WS2 within the 3D-printed nanocarbon structure that are not solely located at the outer surface, but also in the interior up to similar to 150 mu m for MoS2 and similar to 300 mu m for WS2.
Keywords
3D-printed nanocarbon surfaces; electrochemical microscopy
Authors
NOVCIC, K.; IFFELSBERGER, C.; NG, S.; PUMERA, M.
Released
14. 3. 2021
Publisher
ROYAL SOC CHEMISTRY
Location
CAMBRIDGE
ISBN
2040-3364
Periodical
NANOSCALE
Year of study
13
Number
10
State
United Kingdom of Great Britain and Northern Ireland
Pages from
5324
Pages to
5332
Pages count
9
URL
https://pubs.rsc.org/en/content/articlelanding/2021/NR/D0NR06679F#!divAbstract
BibTex
@article{BUT171745, author="Katarina {Novčić} and Christian {Iffelsberger} and Siow Woon {Ng} and Martin {Pumera}", title="Local electrochemical activity of transition metal dichalcogenides and their heterojunctions on 3D-printed nanocarbon surfaces", journal="NANOSCALE", year="2021", volume="13", number="10", pages="5324--5332", doi="10.1039/d0nr06679f", issn="2040-3364", url="https://pubs.rsc.org/en/content/articlelanding/2021/NR/D0NR06679F#!divAbstract" }