Inherent impurities in 3D-printed electrodes are responsible for catalysis towards water splitting

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F20%3APU135920" target="_blank" >RIV/00216305:26620/20:PU135920 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/20:43920464

Result on the web

<a href="https://pubs.rsc.org/en/content/articlehtml/2020/ta/c9ta11949c" target="_blank" >https://pubs.rsc.org/en/content/articlehtml/2020/ta/c9ta11949c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c9ta11949c" target="_blank" >10.1039/c9ta11949c</a>

Result language

angličtina

Original language name

Inherent impurities in 3D-printed electrodes are responsible for catalysis towards water splitting

Original language description

3D-printing is at the forefront of electrochemical energy research as it allows for rapid prototyping and remote on-demand fabrication of energy devices. In recent years, a commercially available 3D-printing graphene/polylactic acid (PLA) filament has been extensively utilised to fabricate electrodes for electrochemical applications. However, it has been reported that this commercial filament and hence the electrodes contain inherent impurities. Herein, these 3D-printed electrodes that contain such impurities are tailored as catalysts for the hydrogen evolution reaction (HER) and the photoelectrochemical (PEC) water oxidation reaction depending on the post 3D-printing treatment (i.e. solvent or thermal based). Our results show that the thermally treated 3D-printed electrode has superior HER and PEC water oxidation properties compared to the bare and the solvent treated 3D-printed electrodes. The optimum performance of the thermally treated 3D-printed graphene/PLA electrode for the HER is linked to the presence of Fe and Ti impurities and the low carbon to oxygen ratio content. Additionally, for the PEC water oxidation, the increased performance for the same electrode is linked to the presence of TiO2 on the electrode surface. Hence, researchers in this field should be cautious about the presence of metal impurities in this commercial graphene/PLA filament and its crucial effect on electrocatalysis.

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

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OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GX19-26896X" target="_blank" >GX19-26896X: 2D Nanomaterials Electrochemistry</a><br>

Continuities

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

Publication year

2020

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

8

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

1120-1126

UT code for WoS article

000508855700017

EID of the result in the Scopus database

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