Publication detail

Local electrochemical activity of transition metal dichalcogenides and their heterojunctions on 3D-printed nanocarbon surfaces

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 {Novcic} 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"
}