Detail publikace

Catalyst Formation and In Operando Monitoring of the Electrocatalytic Activity in Flow Reactors

IFFELSBERGER, C. WERT, S. MATYSIK, F. PUMERA, M.

Originální název

Catalyst Formation and In Operando Monitoring of the Electrocatalytic Activity in Flow Reactors

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Flow reactors are of increasing importance and have become crucial devices due to their wide application in chemical synthesis, electrochemical hydrogen evolution reaction (HER), or electrochemical waste water treatment. In many of these applications, catalyst materials such as transition-metal chalcogenides (TMCs) for the HER, provide the desired electrochemical reactivity for the HER. Generally, the flow electrolyzers' performance is evaluated as the overall output, but the decrease in activity of the electrolyzer is due to localized failure of the catalyst. Herein, we present a method for the spatially resolved (tens of micrometers) In Operando analysis of the catalytic activity under real operation conditions as well as the localized deposition of the catalyst in an operating model flow reactor. For these purposes, scanning electrochemical microscopy was applied for MoSx catalyst deposition and for localized tracking of the TMC activity with a resolution of 25 mu m. This approach offers detailed information about the catalytic performance and should find broad application for the characterization and optimization of flow reactor catalysis under real operational conditions.

Klíčová slova

electrochemical additive manufacturing; electrodeposition; hydrogen evolution reaction; transition-metal chalcogenides; hydrodynamic scanning electrochemical microscopy

Autoři

IFFELSBERGER, C.; WERT, S.; MATYSIK, F.; PUMERA, M.

Vydáno

4. 8. 2021

Nakladatel

AMER CHEMICAL SOC

Místo

WASHINGTON

ISSN

1944-8244

Periodikum

ACS APPL MATER INTER

Ročník

13

Číslo

30

Stát

Spojené státy americké

Strany od

35777

Strany do

35784

Strany počet

8

URL

https://pubs.acs.org/doi/10.1021/acsami.1c09127

BibTex

@article{BUT172549,
  author="Christian {Iffelsberger} and Stefan {Wert} and Frank-Michael {Matysik} and Martin {Pumera}",
  title="Catalyst Formation and In Operando Monitoring of the Electrocatalytic Activity in Flow Reactors",
  journal="ACS APPL MATER INTER",
  year="2021",
  volume="13",
  number="30",
  pages="35777--35784",
  doi="10.1021/acsami.1c09127",
  issn="1944-8244",
  url="https://pubs.acs.org/doi/10.1021/acsami.1c09127"
}