Publication result detail

Layered MAX phase electrocatalyst activity is driven by only a few hot spots

NOVCIC, K.; IFFELSBERGER, C.; PUMERA, M.

Original Title

Layered MAX phase electrocatalyst activity is driven by only a few hot spots

English Title

Layered MAX phase electrocatalyst activity is driven by only a few hot spots

Type

WoS Article

Original Abstract

Layered metal carbides, MAX phases, have gained significant interest in the scientific community due to their electrocatalytic and electrochemical properties. Among various MAX phases, Mo2TiAlC2 has driven much attention because of its enhanced electrochemical activity for the hydrogen evolution reaction (HER). So far, the macroscopic HER performance has been investigated by traditional electrochemical techniques such as voltammetry. However, the knowledge of the microscopic electrocatalytic behaviour, i.e., distribution and location of highly active sites for HER is still limited. Herein, the microscopic analysis of the MAX phase microparticles shows that their electrocatalysis is driven by a few particles with an outstanding catalytic activity towards hydrogen evolution. Such observation is of high importance for design and applications of electrocatalysts in general.

English abstract

Layered metal carbides, MAX phases, have gained significant interest in the scientific community due to their electrocatalytic and electrochemical properties. Among various MAX phases, Mo2TiAlC2 has driven much attention because of its enhanced electrochemical activity for the hydrogen evolution reaction (HER). So far, the macroscopic HER performance has been investigated by traditional electrochemical techniques such as voltammetry. However, the knowledge of the microscopic electrocatalytic behaviour, i.e., distribution and location of highly active sites for HER is still limited. Herein, the microscopic analysis of the MAX phase microparticles shows that their electrocatalysis is driven by a few particles with an outstanding catalytic activity towards hydrogen evolution. Such observation is of high importance for design and applications of electrocatalysts in general.

Keywords

SCANNING ELECTROCHEMICAL MICROSCOPY; TRANSITION-METAL DICHALCOGENIDES; EDGE SITES; HYDROGEN; MOS2; EVOLUTION; CARBIDE; SECM; VISUALIZATION; GENERATION

Key words in English

SCANNING ELECTROCHEMICAL MICROSCOPY; TRANSITION-METAL DICHALCOGENIDES; EDGE SITES; HYDROGEN; MOS2; EVOLUTION; CARBIDE; SECM; VISUALIZATION; GENERATION

Authors

NOVCIC, K.; IFFELSBERGER, C.; PUMERA, M.

RIV year

2023

Released

08.02.2022

Publisher

ROYAL SOC CHEMISTRY

Location

CAMBRIDGE

ISBN

2050-7488

Periodical

Journal of Materials Chemistry A

Volume

10

Number

6

State

United Kingdom of Great Britain and Northern Ireland

Pages from

3206

Pages to

3215

Pages count

10

URL

https://pubs.rsc.org/en/content/articlelanding/2022/TA/D1TA06419C

BibTex

@article{BUT178664,
  author="Katarina {Novčić} and Christian {Iffelsberger} and Martin {Pumera}",
  title="Layered MAX phase electrocatalyst activity is driven by only a few hot spots",
  journal="Journal of Materials Chemistry A",
  year="2022",
  volume="10",
  number="6",
  pages="3206--3215",
  doi="10.1039/d1ta06419c",
  issn="2050-7488",
  url="https://pubs.rsc.org/en/content/articlelanding/2022/TA/D1TA06419C"
}