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Author:

Fu, Lei (Fu, Lei.) | Zhou, Jun (Zhou, Jun.) | Yang, Jiaming (Yang, Jiaming.) | Lian, Zhongjie (Lian, Zhongjie.) | Wang, Junkai (Wang, Junkai.) | Wu, Kai (Wu, Kai.)

Indexed by:

EI SCIE Scopus Engineering Village

Abstract:

A-site deficient Sr0.9Y0.08Ti0.95Ni0.05O3-δ (SYTN) is synthesized and applied as a highly active fuel electrode for reversible solid oxide cells (RSOCs). The as-prepared SYTN shows an n-type conduction mechanism and a high electrical conductivity of 19.7 S cm−1. Based on the density functional theory calculations, it is found that a stronger hybridization of Ni-d and O-p orbit. The exsolved nanoparticles with the perovskite supporter show high catalytic activity. The SYTN anode presents a low Rp of 0.36 Ω cm2 at 800 °C in 5% H2/N2. A single cell with SYTN anode and a 170 μm thick Sc2O3 stabilized-ZrO2 electrolyte layer exhibits maximum power densities of 873 and 412 mW cm−2 at 800 °C using humidified H2 and CH4 as fuels respectively. © 2020 Elsevier B.V.

Keyword:

Anodes Catalyst activity Density functional theory Electrochemical electrodes Electrolytes Fuels Nickel compounds Perovskite Solid oxide fuel cells (SOFC) Strontium compounds Zirconia

Author Community:

  • [ 1 ] [Fu, Lei]Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
  • [ 2 ] [Zhou, Jun]Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
  • [ 3 ] [Yang, Jiaming]Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
  • [ 4 ] [Lian, Zhongjie]Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
  • [ 5 ] [Wang, Junkai]Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China
  • [ 6 ] [Wu, Kai]Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China

Reprint Author's Address:

  • [Zhou, Jun]Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China;;

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Source :

Materials Letters

ISSN: 0167-577X

Year: 2020

Volume: 279

3 . 4 2 3

JCR@2020

3 . 4 2 3

JCR@2020

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:84

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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