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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

<a href="/en/project/LL2101" target="_blank" >LL2101: Next Generation of 2D Monoelemental Materials</a><br>

Continuities

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

Publication year

2024

Confidentiality

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

Name of the periodical

Small Structures

ISSN

2688-4062

e-ISSN

2688-4062

Volume of the periodical

5

Issue of the periodical within the volume

11

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

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UT code for WoS article

001292894700001

EID of the result in the Scopus database

2-s2.0-85201370595