Chiral 2D flakes with single atoms inclusion for spin-controlled oxygen evolution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933108" target="_blank" >RIV/60461373:22310/25:43933108 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/25:43933108 RIV/44555601:13420/25:43899633 RIV/00216208:11320/25:10497678

Výsledek na webu

<a href="https://doi.org/10.1016/j.jpowsour.2025.236839" target="_blank" >https://doi.org/10.1016/j.jpowsour.2025.236839</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jpowsour.2025.236839" target="_blank" >10.1016/j.jpowsour.2025.236839</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Chiral 2D flakes with single atoms inclusion for spin-controlled oxygen evolution

Popis výsledku v původním jazyce

Spin control represents an interesting avenue in modern electrochemistry, with the ability to tune the state of reaction intermediates and the overall reaction selectivity and yield. One of the ways to achieve the reaction spin control is the preparation of specific electrodes through the utilization of the so-called chiral-induced spin selectivity phenomenon (CISS). This approach is based on the utilization of chiral coatings on the surface of redox-active materials, which allow one to align the spin of transited electrons, but limits the available current densities and electrode stability. In this work, the realization of the CISS phenomenon with the implementation of intrinsically chiral 2D flakes of MoS&lt;inf&gt;2&lt;/inf&gt; doped with single Ni atoms is proposed for the first time. The created material was applied to an oxygen evolution reaction (OER) performed under alkaline conditions. The single-atom catalyst provides the material redox activity, while the flakes chirality ensures the alignment of the spins of transited electrons. We reached a significant enhancement of the OER kinetics and suppressed hydrogen peroxide formation. The utilization of the proposed chiral materials allows us to perform OER experiments at a relatively high current density and significantly improve the electrode stability. © 2025 The Authors

Název v anglickém jazyce

Chiral 2D flakes with single atoms inclusion for spin-controlled oxygen evolution

Popis výsledku anglicky

Spin control represents an interesting avenue in modern electrochemistry, with the ability to tune the state of reaction intermediates and the overall reaction selectivity and yield. One of the ways to achieve the reaction spin control is the preparation of specific electrodes through the utilization of the so-called chiral-induced spin selectivity phenomenon (CISS). This approach is based on the utilization of chiral coatings on the surface of redox-active materials, which allow one to align the spin of transited electrons, but limits the available current densities and electrode stability. In this work, the realization of the CISS phenomenon with the implementation of intrinsically chiral 2D flakes of MoS&lt;inf&gt;2&lt;/inf&gt; doped with single Ni atoms is proposed for the first time. The created material was applied to an oxygen evolution reaction (OER) performed under alkaline conditions. The single-atom catalyst provides the material redox activity, while the flakes chirality ensures the alignment of the spins of transited electrons. We reached a significant enhancement of the OER kinetics and suppressed hydrogen peroxide formation. The utilization of the proposed chiral materials allows us to perform OER experiments at a relatively high current density and significantly improve the electrode stability. © 2025 The Authors

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

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

2025

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF POWER SOURCES

ISSN

0378-7753

e-ISSN

—

Svazek periodika

641

Číslo periodika v rámci svazku

JUN 15 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

"236839/1"-9

Kód UT WoS článku

001456654000001

EID výsledku v databázi Scopus

2-s2.0-105000483331