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Author:

Hanif, Muhammad Bilal (Hanif, Muhammad Bilal.) | Gao, Jiu-Tao (Gao, Jiu-Tao.) | Shaheen, Kausar (Shaheen, Kausar.) | Wang, Yue-Peng (Wang, Yue-Peng.) | Yasir, Muhammad (Yasir, Muhammad.) | Li, Chang-Jiu (Li, Chang-Jiu.) | Li, Cheng-Xin (Li, Cheng-Xin.)

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Abstract:

A-site deficient (Sr0.3La0.7)1-x (Fe0.7Ti0.3)0.9Ni0.1O3-δ ((SL)1-xFTN) symmetrical electrodes with compositions x = 0.1, 0.2 and 0.3 denoted as SLFTN-01, SLFTN-02, and SLFTN-03 respectively were synthesized via modified Pechini method. The as prepared samples were further coated on LGSM electrolyte through screen-printing technique. Electrochemical performance was significantly improved for A-site deficient (SL)1-xFTN due to increased concentration of oxygen vacancy. XRD patterns revealed better reversibility for (SL)1-xFTN with rhombohedral structure. Low polarization resistance (Rp) ~0.210, 0.195 and 0.165 Ωcm2 (in dry H2) and 0.069, 0.046 and 0.043 Ωcm2 (in air) was measured for SLFTN-01, SLFTN-02, and SLFTN-03 respectively at a temperature of 750 °C. Highest conductivities ~326, 338 and 342 Scm−1 were calculated in air and the conductivities obtained in dry H2 were ~0.64, 0.81 and 1.01 Scm−1 at 700 °C. It was observed that small polaron mechanism was responsible for the decreased conductivity with the increased temperature range. The fabricated symmetrical cell ((SL)1-xFTN/LDC|LSGM|LDC/(SL)1-xFTN), maintained good stability without any degradation during the test time ~500 h (in air) and 100 h (in dry H2). The detailed investigations categorized the fabricated cells well suited as anode and cathode with improved performance and excellent stability both in oxidizing and reducing atmospheres. © 2020 Hydrogen Energy Publications LLC

Keyword:

Anodes Cathodes Electrochemical electrodes Electrolytes Screen printing Solid oxide fuel cells (SOFC)

Author Community:

  • [ 1 ] [Hanif, Muhammad Bilal]State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an; Shaanxi, China
  • [ 2 ] [Hanif, Muhammad Bilal]Department of Materials Science and Engineering, Institute of Space and Technology, Islamabad; 44000, Pakistan
  • [ 3 ] [Gao, Jiu-Tao]State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an; Shaanxi, China
  • [ 4 ] [Shaheen, Kausar]The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Shaheen, Kausar]Department of Physics, Jinnah College for Women, University of Peshawar, Peshwar; Khyber Pakhtunkhwa; 25120, Pakistan
  • [ 6 ] [Wang, Yue-Peng]State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an; Shaanxi, China
  • [ 7 ] [Yasir, Muhammad]Department of Materials Science and Engineering, Institute of Space and Technology, Islamabad; 44000, Pakistan
  • [ 8 ] [Li, Chang-Jiu]State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an; Shaanxi, China
  • [ 9 ] [Li, Cheng-Xin]State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an; Shaanxi, China

Reprint Author's Address:

  • [Li, Cheng-Xin]State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an; Shaanxi, China;;

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Source :

International Journal of Hydrogen Energy

ISSN: 0360-3199

Year: 2021

Issue: 12

Volume: 46

Page: 8778-8791

5 . 8 1 6

JCR@2020

ESI Discipline: ENGINEERING;

ESI HC Threshold:30

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 10

SCOPUS Cited Count: 29

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 25

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