2D/2D heterojunction interfaces of 1T-MoS2 and Ti3C2 MXene: designing high-performance catalyst for the hydrogen evolution reaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43933816" target="_blank" >RIV/60461373:22310/25:43933816 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.nature.com/articles/s41699-025-00643-4" target="_blank" >https://www.nature.com/articles/s41699-025-00643-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41699-025-00643-4" target="_blank" >10.1038/s41699-025-00643-4</a>

Jazyk výsledku

angličtina

Název v původním jazyce

2D/2D heterojunction interfaces of 1T-MoS2 and Ti3C2 MXene: designing high-performance catalyst for the hydrogen evolution reaction

Popis výsledku v původním jazyce

Designing efficient electrocatalysts for the hydrogen evolution reaction (HER) is crucial for advancing sustainable energy technologies. In this study, a 2D/2D heterostructure composed of 1T-phase molybdenum disulfide (1T-MoS2) and titanium carbide MXene (Ti3C2Tx, denoted as Ti3C2) is synthesized using a one-step hydrothermal method. The hybrid catalyst exhibits improved HER kinetics, demonstrated by a low overpotential of 248 mV at 10 mA cm-2 and a Tafel slope of 55 mV dec-1, indicating fast reaction kinetics and favorable charge transfer. The addition of tetramethylammonium ions (TMA+) induces interlayer expansion, increasing the 1T phase content to 89%. Incorporating only 1% Ti3C2 MXene suppresses oxidation and enhances stability. The composite demonstrates a large electrochemical surface area, high turnover frequency (TOF), and retains over 90% of its catalytic activity after extended electrolysis. This scalable approach offers a promising route to developing stable, efficient 2D electrocatalysts for hydrogen production.

Název v anglickém jazyce

2D/2D heterojunction interfaces of 1T-MoS2 and Ti3C2 MXene: designing high-performance catalyst for the hydrogen evolution reaction

Popis výsledku anglicky

Designing efficient electrocatalysts for the hydrogen evolution reaction (HER) is crucial for advancing sustainable energy technologies. In this study, a 2D/2D heterostructure composed of 1T-phase molybdenum disulfide (1T-MoS2) and titanium carbide MXene (Ti3C2Tx, denoted as Ti3C2) is synthesized using a one-step hydrothermal method. The hybrid catalyst exhibits improved HER kinetics, demonstrated by a low overpotential of 248 mV at 10 mA cm-2 and a Tafel slope of 55 mV dec-1, indicating fast reaction kinetics and favorable charge transfer. The addition of tetramethylammonium ions (TMA+) induces interlayer expansion, increasing the 1T phase content to 89%. Incorporating only 1% Ti3C2 MXene suppresses oxidation and enhances stability. The composite demonstrates a large electrochemical surface area, high turnover frequency (TOF), and retains over 90% of its catalytic activity after extended electrolysis. This scalable approach offers a promising route to developing stable, efficient 2D electrocatalysts for hydrogen production.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

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

npj 2D Materials and Applications

ISSN

2397-7132

e-ISSN

2397-7132

Svazek periodika

10

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

001661817700001

EID výsledku v databázi Scopus

2-s2.0-105027575827