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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU141637" target="_blank" >RIV/00216305:26620/21:PU141637 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43210/21:43920254

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acsami.1c09127" target="_blank" >https://pubs.acs.org/doi/10.1021/acsami.1c09127</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acsami.1c09127" target="_blank" >10.1021/acsami.1c09127</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ACS APPL MATER INTER

ISSN

1944-8244

e-ISSN

1944-8252

Svazek periodika

13

Číslo periodika v rámci svazku

30

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

35777-35784

Kód UT WoS článku

000683741400049

EID výsledku v databázi Scopus

2-s2.0-85111575858