Advanced catalyst layers for PEM fuel cell produced by inkjet printing: Catalyst layer optimisation and comparison with ultrasonic-spray-coated one

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932442" target="_blank" >RIV/60461373:22310/25:43932442 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.fuel.2025.137376" target="_blank" >https://doi.org/10.1016/j.fuel.2025.137376</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2025.137376" target="_blank" >10.1016/j.fuel.2025.137376</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Advanced catalyst layers for PEM fuel cell produced by inkjet printing: Catalyst layer optimisation and comparison with ultrasonic-spray-coated one

Popis výsledku v původním jazyce

Industrial inkjet printing (IJP) emerges as a progressive technology for scalable and precise deposition of catalyst layers (CLs) in proton exchange membrane fuel cells (PEMFCs). In this study, an industrial piezo-IJP head was used for deposition of the CLs directly onto a Nafion™ 212 membrane. Several strategies to mitigate cracks in CLs were considered: addition of ethylene glycol to the inkjet ink, adjusting distance between the printhead and the membrane, and reducing printing resolution in combination with specific algorithms of the drops order. The optimised printing parameters were used to fabricate crack free homogenous catalyst coated membranes (CCMs) with Pt loadings on the cathode varying from 0.1 to 0.3 mgPt cm−2. During operation in a PEMFC, IJP layers showed superior performance to CCMs produced by ultrasonic spray coating (USC). The USC CCMs reached a peak power density of 1.12 W cm−2 with 0.3 mgPt cm−2 on the cathode, while the IJP reached a peak power density of 1.13 W cm−2 already with 0.1 mgPt cm−2 on the cathode. This enhancement was attributed to the reduced ohmic resistance and increased Pt utilisation, achieved through optimisation of the catalyst layer transport properties. These findings highlight the potential of IJP for high-capacity production of low loaded CLs with improved performance.

Název v anglickém jazyce

Advanced catalyst layers for PEM fuel cell produced by inkjet printing: Catalyst layer optimisation and comparison with ultrasonic-spray-coated one

Popis výsledku anglicky

Industrial inkjet printing (IJP) emerges as a progressive technology for scalable and precise deposition of catalyst layers (CLs) in proton exchange membrane fuel cells (PEMFCs). In this study, an industrial piezo-IJP head was used for deposition of the CLs directly onto a Nafion™ 212 membrane. Several strategies to mitigate cracks in CLs were considered: addition of ethylene glycol to the inkjet ink, adjusting distance between the printhead and the membrane, and reducing printing resolution in combination with specific algorithms of the drops order. The optimised printing parameters were used to fabricate crack free homogenous catalyst coated membranes (CCMs) with Pt loadings on the cathode varying from 0.1 to 0.3 mgPt cm−2. During operation in a PEMFC, IJP layers showed superior performance to CCMs produced by ultrasonic spray coating (USC). The USC CCMs reached a peak power density of 1.12 W cm−2 with 0.3 mgPt cm−2 on the cathode, while the IJP reached a peak power density of 1.13 W cm−2 already with 0.1 mgPt cm−2 on the cathode. This enhancement was attributed to the reduced ohmic resistance and increased Pt utilisation, achieved through optimisation of the catalyst layer transport properties. These findings highlight the potential of IJP for high-capacity production of low loaded CLs with improved performance.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20400 - Chemical engineering

Projekt

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

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Fuel

ISSN

0016-2361

e-ISSN

1873-7153

Svazek periodika

407

Číslo periodika v rámci svazku

Part B

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

137376

Kód UT WoS článku

001613195600002

EID výsledku v databázi Scopus

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