3D printed polylactic acid/carbon black electrodes with nearly ideal electrochemical behaviour

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00523367" target="_blank" >RIV/61388955:_____/20:00523367 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0307725" target="_blank" >http://hdl.handle.net/11104/0307725</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jelechem.2019.113745" target="_blank" >10.1016/j.jelechem.2019.113745</a>

Jazyk výsledku

angličtina

Název v původním jazyce

3D printed polylactic acid/carbon black electrodes with nearly ideal electrochemical behaviour

Popis výsledku v původním jazyce

In recent years electrochemistry has joined the revolution in 3D printing. Not only electrochemical cells but also conductive electrodes may be now conveniently and inexpensively manufactured directly in electrochemical laboratories. However, 3D printed electrodes typically suffer from considerable intrinsic kinetic barrier that manifests itself as increased separation of faradaic peaks in cyclic voltammograms. In this work we employ fused deposition modelling 3D printing to manufacture electrodes from a conductive polylactic acid (PLA)/carbon black composite filament. We further activate electrodes by a simple electrochemical anodic procedure. Cyclic voltammograms employing Ru(acac)(3) as the electroactive probe show the faradaic peak separation values between 80 and 85 mV which is superior to any value reported for a 3D printed PIA-based electrode so far. Furthermore, comparison of experimentally obtained faradaic peak current values with those calculated theoretically shows that the relative effective surface area of electrodes approaches unity. Our work clearly demonstrates that 3D printed electrodes may reach characteristics well comparable to those obtained at conventional metallic or carbon electrodes. (C) 2019 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

3D printed polylactic acid/carbon black electrodes with nearly ideal electrochemical behaviour

Popis výsledku anglicky

In recent years electrochemistry has joined the revolution in 3D printing. Not only electrochemical cells but also conductive electrodes may be now conveniently and inexpensively manufactured directly in electrochemical laboratories. However, 3D printed electrodes typically suffer from considerable intrinsic kinetic barrier that manifests itself as increased separation of faradaic peaks in cyclic voltammograms. In this work we employ fused deposition modelling 3D printing to manufacture electrodes from a conductive polylactic acid (PLA)/carbon black composite filament. We further activate electrodes by a simple electrochemical anodic procedure. Cyclic voltammograms employing Ru(acac)(3) as the electroactive probe show the faradaic peak separation values between 80 and 85 mV which is superior to any value reported for a 3D printed PIA-based electrode so far. Furthermore, comparison of experimentally obtained faradaic peak current values with those calculated theoretically shows that the relative effective surface area of electrodes approaches unity. Our work clearly demonstrates that 3D printed electrodes may reach characteristics well comparable to those obtained at conventional metallic or carbon electrodes. (C) 2019 Elsevier B.V. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Journal of Electroanalytical Chemistry

ISSN

1572-6657

e-ISSN

—

Svazek periodika

857

Číslo periodika v rámci svazku

JAN 2020

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

113745

Kód UT WoS článku

000518494300016

EID výsledku v databázi Scopus

2-s2.0-85076564258