High resolution electrochemical additive manufacturing of microstructured active materials: case study of MoSx as a catalyst for the hydrogen evolution reaction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F21%3APU142034" target="_blank" >RIV/00216305:26620/21:PU142034 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43210/21:43920335

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2021/TA/D1TA05581J" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2021/TA/D1TA05581J</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d1ta05581j" target="_blank" >10.1039/d1ta05581j</a>

Result language

angličtina

Original language name

High resolution electrochemical additive manufacturing of microstructured active materials: case study of MoSx as a catalyst for the hydrogen evolution reaction

Original language description

High-resolution electrochemical additive manufacturing follows the principle of additive manufacturing (AM) in that new devices are constructed by electrochemically driven, localized and layered deposition of material. As for AM, an important limitation is the deposition of functional materials such as catalyst materials, which are mandatory for their incorporation into real electrochemical devices. As catalyst materials, transition metal chalcogenides attracted considerable attention due to their potential to replace platinum as a catalyst in the electrochemical hydrogen evolution reaction (HER). While considerable effort has been devoted to the preparation and engineering of 2D structures, their microstructuring is still a major challenge. Here, using MoSx as a functional material for HER catalysis as an example, we demonstrate that high-resolution electrochemical additive manufacturing leads to printing of microstructured highly active electrochemical devices. A one-step process for localized electrochemical deposition and microstructuring of MoSx with controlled chemical composition using scanning electrochemical microscopy (SECM) is demonstrated. The resulting materials were investigated by scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and SECM. Practical applicability is demonstrated by large-scale printing and investigation of their performance as catalysts for energy conversion using linear sweep voltammetry. This method of high-resolution electrochemical additive fabrication of active materials will have wide application as it can be extended for the deposition of active materials on any conductive surface.

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

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2021

Confidentiality

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

Name of the periodical

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

2050-7496

Volume of the periodical

9

Issue of the periodical within the volume

38

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

22072-22081

UT code for WoS article

000697790300001

EID of the result in the Scopus database

2-s2.0-85116678596