Publication detail

Edges of Layered FePSe3 Exhibit Increased Electrochemical and Electrocatalytic Activity Compared to Basal Planes

WERT, S. IFFELSBERGER, C. KANDAMBATH PADINJAREVEETIL, A. PUMERA, M.

Original Title

Edges of Layered FePSe3 Exhibit Increased Electrochemical and Electrocatalytic Activity Compared to Basal Planes

Type

journal article in Web of Science

Language

English

Original Abstract

Transition metal trichalcogenphosphites (MPX3), belonging to the class of 2D materials, are potentially viable electrocatalysts for the hydrogen evolution reaction (HER). Many 2D and layered materials exhibit different magnitudes of electrochemical and electrocatalytic activity at their edge and basal sites. To find out whether edges or basal planes are the primary sites for catalytic processes at these compounds, we studied the local electrochemical and electrocatalytic activity of FePSe3, an MPX3 representative that was previously found to be catalytically active. Using scanning electrochemical microscopy, we discovered that electrochemical processes and the HER are occurring at an increased rate at edge-like defects of FePSe3 crystals. We correlate our observations using optical microscopy, confocal laser scanning microscopy, scanning electron microscopy, and electron-dispersive X-ray spectroscopy. These findings have profound implications for the application of these materials for electrochemistry as well as for understanding general rules governing the electrochemical performance of layered compounds.

Keywords

scanning electrochemical microscopy; 2D materials; transition metal trichalcogenphosphites; iron phosphotriselenide; hydrogen evolution reaction; electrocatalysis; electrochemistry

Authors

WERT, S.; IFFELSBERGER, C.; KANDAMBATH PADINJAREVEETIL, A.; PUMERA, M.

Released

28. 2. 2023

Publisher

American Chemical Society

Location

WASHINGTON

ISBN

2637-6113

Periodical

ACS Applied Electronic Materials

Year of study

5

Number

2

State

United States of America

Pages from

928

Pages to

934

Pages count

7

URL

https://pubs.acs.org/doi/10.1021/acsaelm.2c01493

Full text in the Digital Library

http://hdl.handle.net/11012/244304

BibTex

@article{BUT183773,
  author="Stefan {Wert} and Christian {Iffelsberger} and Akshay Kumar {Kandambath Padinjareveetil} and Martin {Pumera}",
  title="Edges of Layered FePSe3 Exhibit Increased Electrochemical and Electrocatalytic Activity Compared to Basal Planes",
  journal="ACS Applied Electronic Materials",
  year="2023",
  volume="5",
  number="2",
  pages="928--934",
  doi="10.1021/acsaelm.2c01493",
  issn="2637-6113",
  url="https://pubs.acs.org/doi/10.1021/acsaelm.2c01493"
}