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Inkjet-printed Polyvinyl Alcohol Multilayers
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Inkjet Printing Functionalization of SOFC LSCF Cathodes.
Eleonora Venezia1, Massimo Viviani2, Sabrina Presto3
1Department of Chemical, Civil and Environmental Engineering, Università degli studi di Genova, 16145 Genova, Italy. eleonora.venezia@iit.it.
Nanomaterials (Basel, Switzerland)
|April 27, 2019
Summary
Inkjet printing enhances solid oxide fuel cell (SOFC) cathodes by infiltrating nanomaterials. This improves performance, lowering resistance and boosting power output for renewable energy applications.
Area of Science:
- Materials Science
- Electrochemistry
- Renewable Energy
Background:
- Solid oxide fuel cells (SOFCs) offer efficient direct conversion of chemical to electrical energy.
- Improving SOFC performance and cost relies on nano-functionalization of electrodes via infiltration.
- Inkjet printing provides a scalable, high-resolution method for electrode modification.
Purpose of the Study:
- To investigate the inkjet printing infiltration of LaxSr1-xCoyFe1-yO3-δ cathodes with Gd-doped ceria (CGO) and La0.6Sr0.4CoO3-δ (LCO).
- To evaluate the impact of these modifications on electrode performance and oxygen reduction reaction mechanisms.
Main Methods:
- Modification of SOFC cathodes using inkjet printing for infiltration.
- Infiltration with Gadolinium-doped ceria (CGO) as an ion-conductor.
- Infiltration with La0.6Sr0.4CoO3-δ (LCO) as a mixed ionic-electronic conductor.
- Electrochemical impedance spectroscopy to measure performance.
Main Results:
- Inkjet-printed infiltration extended the three-phase boundary (TPB) and enhanced oxygen reduction reaction (ORR).
- Polarization resistances were significantly reduced (2.7–3.7 times lower).
- Maximum power output increased by 24% for CGO-infiltrated and 40% for LCO-infiltrated electrodes.
Conclusions:
- Inkjet printing is a viable technique for nano-functionalizing SOFC electrodes.
- CGO and LCO infiltration via inkjet printing effectively enhances SOFC performance.
- This approach contributes to the development of advanced renewable energy systems.
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