Significant Zirconium Substitution Effect on the Oxygen Reduction Activity of the Cathode Material NdBaCo2O5+δ for Solid Oxide Fuel Cells

Chengzhi Sun; Yu Kong; Lin Shao; Qi Zhang; Xian Wu; Naiqing Zhang; Kening Sun

doi:10.1021/acssuschemeng.9b01486

Significant Zirconium Substitution Effect on the Oxygen Reduction Activity of the Cathode Material NdBaCo₂O_5+δ for Solid Oxide Fuel Cells

Chengzhi Sun
, Yu Kong
, Lin Shao
, Qi Zhang
, Xian Wu
, Naiqing Zhang^*
, Kening Sun

^*此作品的通讯作者

School of Chemistry and Chemical Engineering, Harbin Institute of Technology
Shenzhen University
Harbin Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

38 引用（Scopus）

摘要

NdBaCo₂O_5+δ (NBCO) based double perovskite is an attractive cathode material with many advantages, yet its electrochemical performance still cannot meet the requirements. We first design and prepare Zr cation doping NdBaCo_1.95Zr_0.05O_5+δ and systematically study the effects of Zr-doping on the oxygen kinetics, redox, and electrical properties of NdBaCo_1.95Zr_0.05O_5+δ as cathode material for oxygen conduction SOFCs. NdBaCo_1.95Zr_0.05O_5+δ show rapid oxygen bulk diffusion coefficients and surface exchange coefficients through zirconium cations doping, reaching 5.827 × 10^-5 cm²·s^-1 and 2.878 × 10^-4 cm·s^-1, respectively, at 700 °C, enabling the improved performance of oxygen reduction, and the polarization impedance is as low as 0.024 ω·cm².

源语言	英语
页（从-至）	11603-11611
页数	9
期刊	ACS Sustainable Chemistry and Engineering
卷	7
期	13
DOI	https://doi.org/10.1021/acssuschemeng.9b01486
出版状态	已出版 - 1 7月 2019
已对外发布	是

联合国可持续发展目标

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可持续发展目标 7 经济适用的清洁能源

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10.1021/acssuschemeng.9b01486

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引用此

@article{b4c14206035f484c910f33b0b6324709,

title = "Significant Zirconium Substitution Effect on the Oxygen Reduction Activity of the Cathode Material NdBaCo2O5+δ for Solid Oxide Fuel Cells",

abstract = "NdBaCo2O5+δ (NBCO) based double perovskite is an attractive cathode material with many advantages, yet its electrochemical performance still cannot meet the requirements. We first design and prepare Zr cation doping NdBaCo1.95Zr0.05O5+δ and systematically study the effects of Zr-doping on the oxygen kinetics, redox, and electrical properties of NdBaCo1.95Zr0.05O5+δ as cathode material for oxygen conduction SOFCs. NdBaCo1.95Zr0.05O5+δ show rapid oxygen bulk diffusion coefficients and surface exchange coefficients through zirconium cations doping, reaching 5.827 {\texttimes} 10-5 cm2·s-1 and 2.878 {\texttimes} 10-4 cm·s-1, respectively, at 700 °C, enabling the improved performance of oxygen reduction, and the polarization impedance is as low as 0.024 ω·cm2.",

keywords = "Bulk diffusion coefficients, Lattice free volume, Oxygen surface exchange, SOFC cathode",

author = "Chengzhi Sun and Yu Kong and Lin Shao and Qi Zhang and Xian Wu and Naiqing Zhang and Kening Sun",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

month = jul,

day = "1",

doi = "10.1021/acssuschemeng.9b01486",

language = "English",

volume = "7",

pages = "11603--11611",

journal = "ACS Sustainable Chemistry and Engineering",

issn = "2168-0485",

publisher = "American Chemical Society",

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}

TY - JOUR

T1 - Significant Zirconium Substitution Effect on the Oxygen Reduction Activity of the Cathode Material NdBaCo2O5+δ for Solid Oxide Fuel Cells

AU - Sun, Chengzhi

AU - Kong, Yu

AU - Shao, Lin

AU - Zhang, Qi

AU - Wu, Xian

AU - Zhang, Naiqing

AU - Sun, Kening

PY - 2019/7/1

Y1 - 2019/7/1

N2 - NdBaCo2O5+δ (NBCO) based double perovskite is an attractive cathode material with many advantages, yet its electrochemical performance still cannot meet the requirements. We first design and prepare Zr cation doping NdBaCo1.95Zr0.05O5+δ and systematically study the effects of Zr-doping on the oxygen kinetics, redox, and electrical properties of NdBaCo1.95Zr0.05O5+δ as cathode material for oxygen conduction SOFCs. NdBaCo1.95Zr0.05O5+δ show rapid oxygen bulk diffusion coefficients and surface exchange coefficients through zirconium cations doping, reaching 5.827 × 10-5 cm2·s-1 and 2.878 × 10-4 cm·s-1, respectively, at 700 °C, enabling the improved performance of oxygen reduction, and the polarization impedance is as low as 0.024 ω·cm2.

AB - NdBaCo2O5+δ (NBCO) based double perovskite is an attractive cathode material with many advantages, yet its electrochemical performance still cannot meet the requirements. We first design and prepare Zr cation doping NdBaCo1.95Zr0.05O5+δ and systematically study the effects of Zr-doping on the oxygen kinetics, redox, and electrical properties of NdBaCo1.95Zr0.05O5+δ as cathode material for oxygen conduction SOFCs. NdBaCo1.95Zr0.05O5+δ show rapid oxygen bulk diffusion coefficients and surface exchange coefficients through zirconium cations doping, reaching 5.827 × 10-5 cm2·s-1 and 2.878 × 10-4 cm·s-1, respectively, at 700 °C, enabling the improved performance of oxygen reduction, and the polarization impedance is as low as 0.024 ω·cm2.

KW - Bulk diffusion coefficients

KW - Lattice free volume

KW - Oxygen surface exchange

KW - SOFC cathode

UR - https://www.scopus.com/pages/publications/85067379403

U2 - 10.1021/acssuschemeng.9b01486

DO - 10.1021/acssuschemeng.9b01486

M3 - Article

AN - SCOPUS:85067379403

SN - 2168-0485

VL - 7

SP - 11603

EP - 11611

JO - ACS Sustainable Chemistry and Engineering

JF - ACS Sustainable Chemistry and Engineering

IS - 13

ER -

Significant Zirconium Substitution Effect on the Oxygen Reduction Activity of the Cathode Material NdBaCo2O5+δ for Solid Oxide Fuel Cells

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Significant Zirconium Substitution Effect on the Oxygen Reduction Activity of the Cathode Material NdBaCo₂O_5+δ for Solid Oxide Fuel Cells