Cobalt free SrFe0.95Nb0.05O3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr0.1Ce0.7Y0.2O3−δ electrolyte

Michael K.H. Leung; Wei He; Chengxu Zhang; Meng Ni

doi:10.1016/j.matlet.2017.04.103

Cobalt free SrFe_0.95Nb_0.05O_3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr_0.1Ce_0.7Y_0.2O_3−δ electrolyte

Michael K.H. Leung^*
, Wei He
, Chengxu Zhang
, Meng Ni^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

22 Citations (Scopus)

Abstract

A novel cobalt-free cubic perovskite SrFe_0.95Nb_0.05O_3−δ (SFNb) was synthesized and investigated as cathode for proton-conducting solid state fuel cell (H-SOFC) with BaZr_0.1Ce_0.7Y_0.2O_3−δ (BZCY) as the electrolyte. Anode supported NiO-BZCY/BZCY/SFNb cell was fabricated and the performance was investigated. A peak power density of 538 mW cm⁻² and a low polarization resistance of 0.23 Ω cm² were obtained at 650 °C with hydrogen as the fuel and air as the oxidant. No obvious cell degradation was observed during the 50 h test. All the results indicated that the cobalt-free SFNb oxide is a promising cathode material for H-SOFCs.

Original language	English
Pages (from-to)	75-78
Journal	Materials Letters
Volume	200
Online published	24 Apr 2017
DOIs	https://doi.org/10.1016/j.matlet.2017.04.103
Publication status	Published - 1 Aug 2017

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

Cathode
Ceramics
Cobalt-free
Cubic perovskite
Proton-conducting solid oxide fuel cell

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10.1016/j.matlet.2017.04.103

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@article{f064249e46e241c49d71c05fd08aaae3,

title = "Cobalt free SrFe0.95Nb0.05O3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr0.1Ce0.7Y0.2O3−δ electrolyte",

abstract = "A novel cobalt-free cubic perovskite SrFe0.95Nb0.05O3−δ (SFNb) was synthesized and investigated as cathode for proton-conducting solid state fuel cell (H-SOFC) with BaZr0.1Ce0.7Y0.2O3−δ (BZCY) as the electrolyte. Anode supported NiO-BZCY/BZCY/SFNb cell was fabricated and the performance was investigated. A peak power density of 538 mW cm−2 and a low polarization resistance of 0.23 Ω cm2 were obtained at 650 °C with hydrogen as the fuel and air as the oxidant. No obvious cell degradation was observed during the 50 h test. All the results indicated that the cobalt-free SFNb oxide is a promising cathode material for H-SOFCs.",

keywords = "Cathode, Ceramics, Cobalt-free, Cubic perovskite, Proton-conducting solid oxide fuel cell",

author = "Leung, \{Michael K.H.\} and Wei He and Chengxu Zhang and Meng Ni",

year = "2017",

month = aug,

day = "1",

doi = "10.1016/j.matlet.2017.04.103",

language = "English",

volume = "200",

pages = "75--78",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Cobalt free SrFe0.95Nb0.05O3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr0.1Ce0.7Y0.2O3−δ electrolyte

AU - Leung, Michael K.H.

AU - He, Wei

AU - Zhang, Chengxu

AU - Ni, Meng

PY - 2017/8/1

Y1 - 2017/8/1

N2 - A novel cobalt-free cubic perovskite SrFe0.95Nb0.05O3−δ (SFNb) was synthesized and investigated as cathode for proton-conducting solid state fuel cell (H-SOFC) with BaZr0.1Ce0.7Y0.2O3−δ (BZCY) as the electrolyte. Anode supported NiO-BZCY/BZCY/SFNb cell was fabricated and the performance was investigated. A peak power density of 538 mW cm−2 and a low polarization resistance of 0.23 Ω cm2 were obtained at 650 °C with hydrogen as the fuel and air as the oxidant. No obvious cell degradation was observed during the 50 h test. All the results indicated that the cobalt-free SFNb oxide is a promising cathode material for H-SOFCs.

AB - A novel cobalt-free cubic perovskite SrFe0.95Nb0.05O3−δ (SFNb) was synthesized and investigated as cathode for proton-conducting solid state fuel cell (H-SOFC) with BaZr0.1Ce0.7Y0.2O3−δ (BZCY) as the electrolyte. Anode supported NiO-BZCY/BZCY/SFNb cell was fabricated and the performance was investigated. A peak power density of 538 mW cm−2 and a low polarization resistance of 0.23 Ω cm2 were obtained at 650 °C with hydrogen as the fuel and air as the oxidant. No obvious cell degradation was observed during the 50 h test. All the results indicated that the cobalt-free SFNb oxide is a promising cathode material for H-SOFCs.

KW - Cathode

KW - Ceramics

KW - Cobalt-free

KW - Cubic perovskite

KW - Proton-conducting solid oxide fuel cell

UR - https://www.scopus.com/pages/publications/85018243691

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85018243691&origin=recordpage

U2 - 10.1016/j.matlet.2017.04.103

DO - 10.1016/j.matlet.2017.04.103

M3 - RGC 21 - Publication in refereed journal

SN - 0167-577X

VL - 200

SP - 75

EP - 78

JO - Materials Letters

JF - Materials Letters

ER -

Cobalt free SrFe_0.95Nb_0.05O_3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr_0.1Ce_0.7Y_0.2O_3−δ electrolyte

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GRF: Artificial Alveolar Mechanics for Enhancing Multiphase Catalytic Reactor Activity in the Field of Energy and Environment

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Cobalt free SrFe0.95Nb0.05O3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr0.1Ce0.7Y0.2O3−δ electrolyte

Abstract

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GRF: Artificial Alveolar Mechanics for Enhancing Multiphase Catalytic Reactor Activity in the Field of Energy and Environment

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Cobalt free SrFe_0.95Nb_0.05O_3−δ cathode material for proton-conducting solid oxide fuel cells with BaZr_0.1Ce_0.7Y_0.2O_3−δ electrolyte