Boosting the ORR kinetics of protonic ceramic fuel cells <i>via</i> surface decoration using nonreactive insulators

Qiu, Bingbing; Zhu, Kang; Yang, Yi; Ye, Lujuan; Zhang, Lijie; Xia, Changrong; Peng, Ranran; Lu, Yalin

doi:10.1039/d4ta02788d

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta02788d

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Boosting the ORR kinetics of protonic ceramic fuel cells via surface decoration using nonreactive insulators

Bingbing Qiu,

Kang Zhu,

Yi Yang

et al.

Abstract: As a promising energy conversion device, protonic ceramic fuel cell (PCFC) has drawn wide attention for its high efficiency, negligible environmental impact and low cost, yet was restricted mainly by...

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La_0.7Sr_0.3Fe_0.9Ni_0.1O_3−δ–Ce_0.8Sm_0.2O_2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells

Zhao,

Liu,

Zhang

et al. 2024

ACS Appl. Energy Mater.

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Rational design of the electrode microstructure is an important strategy to improve the performance of solid oxide fuel cells. Electrospinning is an effective approach for the production of electrode materials with a nanofiber microstructure, which provides straight and continuous pathways for ionic and electronic conduction. In this study, the self-assembled La 0.7 Sr 0.3 Fe 0.9 Ni 0.1 O 3−δ (LSFN)−Ce 0.8 Sm 0.2 O 2−δ (SDC) composite with a hollow nanofiber structure is synthesized as the cathode material of protonic ceramic fuel cells (PCFCs) through a coaxial electrospinning process. LSFN and SDC are both distributed uniformly in the composite cathode. Compared with composite cathodes prepared through electrospinning with solid and core− shell nanofiber structures, the hollow-fiber LSFN−SDC cathode shows a higher specific surface area and provides more channels for gas diffusion, both of which are beneficial for the oxygen reduction reaction. The LSFN−SDC composite cathode with the hollow fiber structure exhibits the lowest polarization resistance of 0.035 Ω cm 2 at 700 °C. A PCFC with that cathode shows a maximum power density of 1598 mW cm −2 and a promising short-term stability at 700 °C.

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La_0.7Sr_0.3Fe_0.9Ni_0.1O_3−δ–Ce_0.8Sm_0.2O_2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells

Zhao,

Liu,

Zhang

et al. 2024

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

show abstract

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Boosting the ORR kinetics of protonic ceramic fuel cells via surface decoration using nonreactive insulators

Abstract: As a promising energy conversion device, protonic ceramic fuel cell (PCFC) has drawn wide attention for its high efficiency, negligible environmental impact and low cost, yet was restricted mainly by...

Cited by 1 publication

References 59 publications

La_0.7Sr_0.3Fe_0.9Ni_0.1O_3−δ–Ce_0.8Sm_0.2O_2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells

La_0.7Sr_0.3Fe_0.9Ni_0.1O_3−δ–Ce_0.8Sm_0.2O_2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells

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Boosting the ORR kinetics of protonic ceramic fuel cells via surface decoration using nonreactive insulators

Abstract: As a promising energy conversion device, protonic ceramic fuel cell (PCFC) has drawn wide attention for its high efficiency, negligible environmental impact and low cost, yet was restricted mainly by...

Cited by 1 publication

References 59 publications

La0.7Sr0.3Fe0.9Ni0.1O3−δ–Ce0.8Sm0.2O2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells

La0.7Sr0.3Fe0.9Ni0.1O3−δ–Ce0.8Sm0.2O2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells

Contact Info

Product

Resources

About

La_0.7Sr_0.3Fe_0.9Ni_0.1O_3−δ–Ce_0.8Sm_0.2O_2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells

La_0.7Sr_0.3Fe_0.9Ni_0.1O_3−δ–Ce_0.8Sm_0.2O_2−δ Composite Cathode with a Hollow Nanofiber Structure Prepared through Coaxial Electrospinning for Protonic Ceramic Fuel Cells