The effect of oxygen transfer mechanism on the cathode performance based on proton-conducting solid oxide fuel cells

Jie Hou; Jing Qian; Lei Bi; Zheng Gong; Ranran Peng; Wei Liu

doi:10.1039/c4ta04397a

The effect of oxygen transfer mechanism on the cathode performance based on proton-conducting solid oxide fuel cells

Jie Hou, Jing Qian, Lei Bi, Zheng Gong, Ranran Peng, Wei Liu

Physical Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

Two types of proton-blocking composites, La2NiO4+δ-LaNi0.6Fe0.4O3-δ (LNO-LNF) and Sm0.2Ce0.8O2-δ-LaNi0.6Fe0.4O3-δ (SDC-LNF), were evaluated as cathode materials for proton-conducting solid oxide fuel cells (H-SOFCs) based on the BaZr0.1Ce0.7Y0.2O3-δ (BZCY) electrolyte, in order to compare and investigate the influence of two different oxygen transfer mechanism on the performance of the cathode for H-SOFCs. The X-ray diffraction (XRD) results showed that the chemical compatibility of the components in both compounds was excellent up to 1000°C. Electrochemical studies revealed that LNO-LNF showed lower area specific polarization resistances in symmetrical cells and better electrochemical performance in single cell tests. The single cell with LNO-LNF cathode generated remarkable higher maximum power densities (MPDs) and lower interfacial polarization resistances (Rp) than that with SDC-LNF cathode. Correspondingly, the MPDs of the single cell with the LNO-LNF cathode were 490, 364, 266, 180 mW cm-2 and the Rp were 0.103, 0.279, 0.587, 1.367 Ω cm2 at 700, 650, 600 and 550°C, respectively. Moreover, after the single cell with LNO-LNF cathode optimized with an anode functional layer (AFL) between the anode and electrolyte, the power outputs reached 708 mW cm-2 at 700°C. These results demonstrate that the LNO-LNF composite cathode with the interstitial oxygen transfer mechanism is a more preferable alternative for H-SOFCs than SDC-LNF composite cathode with the oxygen vacancy transfer mechanism.

Original language	English (US)
Pages (from-to)	2207-2215
Number of pages	9
Journal	J. Mater. Chem. A
Volume	3
Issue number	5
DOIs	https://doi.org/10.1039/c4ta04397a
State	Published - 2015

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by Ministry of Science and Technology of China (Grant no.: 2012CB215403). The project was also supported by the National Science Foundations of China (Grant nos: 51472228 and 21406190).

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Renewable Energy, Sustainability and the Environment
General Materials Science
General Chemistry

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1039/c4ta04397a

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@article{d75463dcc7ac40e0a7555b79122f7b67,

title = "The effect of oxygen transfer mechanism on the cathode performance based on proton-conducting solid oxide fuel cells",

abstract = "Two types of proton-blocking composites, La2NiO4+δ-LaNi0.6Fe0.4O3-δ (LNO-LNF) and Sm0.2Ce0.8O2-δ-LaNi0.6Fe0.4O3-δ (SDC-LNF), were evaluated as cathode materials for proton-conducting solid oxide fuel cells (H-SOFCs) based on the BaZr0.1Ce0.7Y0.2O3-δ (BZCY) electrolyte, in order to compare and investigate the influence of two different oxygen transfer mechanism on the performance of the cathode for H-SOFCs. The X-ray diffraction (XRD) results showed that the chemical compatibility of the components in both compounds was excellent up to 1000°C. Electrochemical studies revealed that LNO-LNF showed lower area specific polarization resistances in symmetrical cells and better electrochemical performance in single cell tests. The single cell with LNO-LNF cathode generated remarkable higher maximum power densities (MPDs) and lower interfacial polarization resistances (Rp) than that with SDC-LNF cathode. Correspondingly, the MPDs of the single cell with the LNO-LNF cathode were 490, 364, 266, 180 mW cm-2 and the Rp were 0.103, 0.279, 0.587, 1.367 Ω cm2 at 700, 650, 600 and 550°C, respectively. Moreover, after the single cell with LNO-LNF cathode optimized with an anode functional layer (AFL) between the anode and electrolyte, the power outputs reached 708 mW cm-2 at 700°C. These results demonstrate that the LNO-LNF composite cathode with the interstitial oxygen transfer mechanism is a more preferable alternative for H-SOFCs than SDC-LNF composite cathode with the oxygen vacancy transfer mechanism.",

author = "Jie Hou and Jing Qian and Lei Bi and Zheng Gong and Ranran Peng and Wei Liu",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by Ministry of Science and Technology of China (Grant no.: 2012CB215403). The project was also supported by the National Science Foundations of China (Grant nos: 51472228 and 21406190).",

year = "2015",

doi = "10.1039/c4ta04397a",

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volume = "3",

pages = "2207--2215",

journal = "J. Mater. Chem. A",

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TY - JOUR

T1 - The effect of oxygen transfer mechanism on the cathode performance based on proton-conducting solid oxide fuel cells

AU - Hou, Jie

AU - Qian, Jing

AU - Bi, Lei

AU - Gong, Zheng

AU - Peng, Ranran

AU - Liu, Wei

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by Ministry of Science and Technology of China (Grant no.: 2012CB215403). The project was also supported by the National Science Foundations of China (Grant nos: 51472228 and 21406190).

PY - 2015

Y1 - 2015

N2 - Two types of proton-blocking composites, La2NiO4+δ-LaNi0.6Fe0.4O3-δ (LNO-LNF) and Sm0.2Ce0.8O2-δ-LaNi0.6Fe0.4O3-δ (SDC-LNF), were evaluated as cathode materials for proton-conducting solid oxide fuel cells (H-SOFCs) based on the BaZr0.1Ce0.7Y0.2O3-δ (BZCY) electrolyte, in order to compare and investigate the influence of two different oxygen transfer mechanism on the performance of the cathode for H-SOFCs. The X-ray diffraction (XRD) results showed that the chemical compatibility of the components in both compounds was excellent up to 1000°C. Electrochemical studies revealed that LNO-LNF showed lower area specific polarization resistances in symmetrical cells and better electrochemical performance in single cell tests. The single cell with LNO-LNF cathode generated remarkable higher maximum power densities (MPDs) and lower interfacial polarization resistances (Rp) than that with SDC-LNF cathode. Correspondingly, the MPDs of the single cell with the LNO-LNF cathode were 490, 364, 266, 180 mW cm-2 and the Rp were 0.103, 0.279, 0.587, 1.367 Ω cm2 at 700, 650, 600 and 550°C, respectively. Moreover, after the single cell with LNO-LNF cathode optimized with an anode functional layer (AFL) between the anode and electrolyte, the power outputs reached 708 mW cm-2 at 700°C. These results demonstrate that the LNO-LNF composite cathode with the interstitial oxygen transfer mechanism is a more preferable alternative for H-SOFCs than SDC-LNF composite cathode with the oxygen vacancy transfer mechanism.

AB - Two types of proton-blocking composites, La2NiO4+δ-LaNi0.6Fe0.4O3-δ (LNO-LNF) and Sm0.2Ce0.8O2-δ-LaNi0.6Fe0.4O3-δ (SDC-LNF), were evaluated as cathode materials for proton-conducting solid oxide fuel cells (H-SOFCs) based on the BaZr0.1Ce0.7Y0.2O3-δ (BZCY) electrolyte, in order to compare and investigate the influence of two different oxygen transfer mechanism on the performance of the cathode for H-SOFCs. The X-ray diffraction (XRD) results showed that the chemical compatibility of the components in both compounds was excellent up to 1000°C. Electrochemical studies revealed that LNO-LNF showed lower area specific polarization resistances in symmetrical cells and better electrochemical performance in single cell tests. The single cell with LNO-LNF cathode generated remarkable higher maximum power densities (MPDs) and lower interfacial polarization resistances (Rp) than that with SDC-LNF cathode. Correspondingly, the MPDs of the single cell with the LNO-LNF cathode were 490, 364, 266, 180 mW cm-2 and the Rp were 0.103, 0.279, 0.587, 1.367 Ω cm2 at 700, 650, 600 and 550°C, respectively. Moreover, after the single cell with LNO-LNF cathode optimized with an anode functional layer (AFL) between the anode and electrolyte, the power outputs reached 708 mW cm-2 at 700°C. These results demonstrate that the LNO-LNF composite cathode with the interstitial oxygen transfer mechanism is a more preferable alternative for H-SOFCs than SDC-LNF composite cathode with the oxygen vacancy transfer mechanism.

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U2 - 10.1039/c4ta04397a

DO - 10.1039/c4ta04397a

M3 - Article

SN - 2050-7488

VL - 3

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EP - 2215

JO - J. Mater. Chem. A

JF - J. Mater. Chem. A

IS - 5

ER -

The effect of oxygen transfer mechanism on the cathode performance based on proton-conducting solid oxide fuel cells

Abstract

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UN SDGs

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