Enhancing the Electrocatalytic Properties of a One-Pot Synthesis of Defect-Rich 2D/2D Nanoheterointerface of Titanium Carbo-Oxide and Molybdenum Disulfide for Hydrogen Evolution Reaction in Acidic Medium

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927422" target="_blank" >RIV/60461373:22310/23:43927422 - isvavai.cz</a>

Výsledek na webu

<a href="https://pubs.acs.org/doi/10.1021/acssuschemeng.3c03621" target="_blank" >https://pubs.acs.org/doi/10.1021/acssuschemeng.3c03621</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acssuschemeng.3c03621" target="_blank" >10.1021/acssuschemeng.3c03621</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhancing the Electrocatalytic Properties of a One-Pot Synthesis of Defect-Rich 2D/2D Nanoheterointerface of Titanium Carbo-Oxide and Molybdenum Disulfide for Hydrogen Evolution Reaction in Acidic Medium

Popis výsledku v původním jazyce

One of the current global challenges is to find renewable, low-carbon, and clean substitutes for fossil fuels. Hydrogen (H-2) can be seen as the ideal energy carrier for the future to change the global energy structure. As water is an abundant source, large-scale production of pure hydrogen from water electrolysis using a suitable catalyst seems to be a good alternative to steam reforming. It is therefore very important to search for low-cost, earth-available, and efficient catalysts for the hydrogen evolution reaction (HER). In this work, a novel 2D/2D nanoheterointerface was built between titanium carbo-oxide (TCO) and molybdenum sulfide (MoS2) using an easy and one-pot solvothermal method. Characterizations by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy demonstrate that the targeted material with increased defects in the heterostructure was successfully obtained. The prepared nanohybrid material exhibits significantly better electrocatalytic properties than pristine TCO and MoS2 for the HER in an acidic medium. An overpotential of 269 mV (at the current density of 10 mA cm(-2)), a Tafel slope of 82 mV dec(-1), and very high stability with an overpotential loss of only 17.06 mV after 5000 cycles were obtained. The enhancement of HER properties in the nanohybrid material is derived from the increase in defects with the formation of the nanoheterointerface, which activates a new catalytic site in the basal plane of MoS2, thus enhancing the electrocatalytic properties.

Název v anglickém jazyce

Enhancing the Electrocatalytic Properties of a One-Pot Synthesis of Defect-Rich 2D/2D Nanoheterointerface of Titanium Carbo-Oxide and Molybdenum Disulfide for Hydrogen Evolution Reaction in Acidic Medium

Popis výsledku anglicky

One of the current global challenges is to find renewable, low-carbon, and clean substitutes for fossil fuels. Hydrogen (H-2) can be seen as the ideal energy carrier for the future to change the global energy structure. As water is an abundant source, large-scale production of pure hydrogen from water electrolysis using a suitable catalyst seems to be a good alternative to steam reforming. It is therefore very important to search for low-cost, earth-available, and efficient catalysts for the hydrogen evolution reaction (HER). In this work, a novel 2D/2D nanoheterointerface was built between titanium carbo-oxide (TCO) and molybdenum sulfide (MoS2) using an easy and one-pot solvothermal method. Characterizations by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy demonstrate that the targeted material with increased defects in the heterostructure was successfully obtained. The prepared nanohybrid material exhibits significantly better electrocatalytic properties than pristine TCO and MoS2 for the HER in an acidic medium. An overpotential of 269 mV (at the current density of 10 mA cm(-2)), a Tafel slope of 82 mV dec(-1), and very high stability with an overpotential loss of only 17.06 mV after 5000 cycles were obtained. The enhancement of HER properties in the nanohybrid material is derived from the increase in defects with the formation of the nanoheterointerface, which activates a new catalytic site in the basal plane of MoS2, thus enhancing the electrocatalytic properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/GA23-05918S" target="_blank" >GA23-05918S: Chytré bydlení - systémy akumulace energie ukryté v budovách jako součást základních stavebních prvků</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

ACS Sustainable Chemistry &amp; Engineering

ISSN

2168-0485

e-ISSN

—

Svazek periodika

11

Číslo periodika v rámci svazku

39

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

14528-14537

Kód UT WoS článku

001071354400001

EID výsledku v databázi Scopus

2-s2.0-85174930592