Scalable 2D Semiconductor-Based van der Waals Heterostructure Interface with Built-in Electric Field for Enhanced Electrochemical Water Splitting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929993" target="_blank" >RIV/60461373:22310/24:43929993 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/pdf/10.1002/sstr.202400257" target="_blank" >https://onlinelibrary.wiley.com/doi/pdf/10.1002/sstr.202400257</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/sstr.202400257" target="_blank" >10.1002/sstr.202400257</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Scalable 2D Semiconductor-Based van der Waals Heterostructure Interface with Built-in Electric Field for Enhanced Electrochemical Water Splitting

Popis výsledku v původním jazyce

Electrochemical water splitting has received tremendous attention as an eco-friendly approach to produce hydrogen. Noble metals and their oxides are commonly used as electrocatalysts to reduce activation energy barriers for hydrogen and oxygen evolution reactions in high-performance electrodes, but their cost, scarcity, and limited stability hinder widespread adoption of electrochemical water splitting. Further advancements are therefore needed to reduce reliance on noble metals and improve the long-term stability. Herein, solution-processed 2D van der Waals (vdW) p-n heterostructures as an interfacial layer between catalysts and the electrode are introduced to enhance the catalytic performance. These heterostructures are formed by sequentially assembling electrochemically exfoliated black phosphorus and molybdenum disulfide nanosheets into electronic-grade p- and n-type semiconductor thin films, with the scalability extending across tens-of-centimeter scale areas. Benefiting from the charge distribution and built-in electric field developed upon heterojunction formation, the vdW heterostructure interfacial layer increases both the catalytic activity and stability of commercial Pt/C and Ir/C catalysts compared to when these catalysts are directly loaded onto electrodes. Additionally, the vdW heterostructure also serves as a template for synthesizing nanostructured Pt and Ir catalysts through electrodeposition, further enhancing the catalytic performance in terms of mass activity and stability. A scalable method to fabricate electronic-grade van der Waals heterostructure interface is developed using electrochemically exfoliated black phosphorus and molybdenum disulfide nanosheets. Benefiting from surface charge distribution and built-in electric field, these heterostructures serve as interfacial layers to enhance nanocatalysts for hydrogen and oxygen evolution reactions.image (c) 2024 WILEY-VCH GmbH

Název v anglickém jazyce

Scalable 2D Semiconductor-Based van der Waals Heterostructure Interface with Built-in Electric Field for Enhanced Electrochemical Water Splitting

Popis výsledku anglicky

Electrochemical water splitting has received tremendous attention as an eco-friendly approach to produce hydrogen. Noble metals and their oxides are commonly used as electrocatalysts to reduce activation energy barriers for hydrogen and oxygen evolution reactions in high-performance electrodes, but their cost, scarcity, and limited stability hinder widespread adoption of electrochemical water splitting. Further advancements are therefore needed to reduce reliance on noble metals and improve the long-term stability. Herein, solution-processed 2D van der Waals (vdW) p-n heterostructures as an interfacial layer between catalysts and the electrode are introduced to enhance the catalytic performance. These heterostructures are formed by sequentially assembling electrochemically exfoliated black phosphorus and molybdenum disulfide nanosheets into electronic-grade p- and n-type semiconductor thin films, with the scalability extending across tens-of-centimeter scale areas. Benefiting from the charge distribution and built-in electric field developed upon heterojunction formation, the vdW heterostructure interfacial layer increases both the catalytic activity and stability of commercial Pt/C and Ir/C catalysts compared to when these catalysts are directly loaded onto electrodes. Additionally, the vdW heterostructure also serves as a template for synthesizing nanostructured Pt and Ir catalysts through electrodeposition, further enhancing the catalytic performance in terms of mass activity and stability. A scalable method to fabricate electronic-grade van der Waals heterostructure interface is developed using electrochemically exfoliated black phosphorus and molybdenum disulfide nanosheets. Benefiting from surface charge distribution and built-in electric field, these heterostructures serve as interfacial layers to enhance nanocatalysts for hydrogen and oxygen evolution reactions.image (c) 2024 WILEY-VCH GmbH

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/LL2101" target="_blank" >LL2101: Příští Generace Monoelementárních 2D Materiálů</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Small Structures

ISSN

2688-4062

e-ISSN

2688-4062

Svazek periodika

5

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

001292894700001

EID výsledku v databázi Scopus

2-s2.0-85201370595