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author:

Zhang, Feihong (Zhang, Feihong.) [1] | Weng, Qiaohang (Weng, Qiaohang.) [2] | Zhang, Yanxiang (Zhang, Yanxiang.) [3] | Ai, Na (Ai, Na.) [4] (Scholars:艾娜) | Jiang, San Ping (Jiang, San Ping.) [5] | Guan, Chengzhi (Guan, Chengzhi.) [6] | Shao, Yanqun (Shao, Yanqun.) [7] (Scholars:邵艳群) | Fang, Huihuang (Fang, Huihuang.) [8] (Scholars:方辉煌) | Luo, Yu (Luo, Yu.) [9] | Chen, Kongfa (Chen, Kongfa.) [10] (Scholars:陈孔发)

Indexed by:

EI Scopus SCIE

Abstract:

Solid oxide fuel cells (SOFCs) are the most efficient energy conversion technology to convert the chemical energy of fuels like hydrogen, natural gas, etc. to electricity. However, one of the limiting factors in the commercial viability of SOFCs technologies is the time-consuming and high-cost multiple cell fabrication processes. Here, we report the development of a facile procedure for the preparation of an electrolyte-supported cell with a Ni-Gd0.1Ce0.9O1.95 composite anode and a La0.6Sr0.4Co0.2Fe0.8O3-delta cathode, and the fabrication procedure of the electrodes decreases from four steps of screen-printing and sintering of conventional cell preparation processes to two steps of screen-printing using a direct assembly approach without the high-temperature sintering steps. The most important observation is the simultaneous formation of the electrode/electrolyte interfaces of both the anode and cathode by in situ passing a current through the directly assembled cells at 800 ?. The power density of the directly assembled cell reaches 0.41 W cm(-2) at a voltage of 0.7 V and 800 ?., close to 0.46 W cm(-2) of the sintered cell. The directly assembled cell shows comparable operational stability to the sintered cell at 800 ?. for 100 h. This work sheds light on the facile fabrication of electrolyte-supported cells with substantially simplified preparation procedures and reduced costs.

Keyword:

Direct assembly Electrochemical polarization Electrode/electrolyte interface Solid oxide fuel cell

Community:

  • [ 1 ] [Zhang, Feihong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Weng, Qiaohang]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Shao, Yanqun]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Chen, Kongfa]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Zhang, Yanxiang]Harbin Inst Technol, Sch Mat Sci & Engn, Natl Key Lab Precis Hot Proc Met, MIIT Key Lab Adv Struct Funct Integrated Mat & Gre, Harbin 150001, Peoples R China
  • [ 6 ] [Ai, Na]Fuzhou Univ, Fujian Coll Assoc Instrumental Anal Ctr, Fuzhou 350108, Fujian, Peoples R China
  • [ 7 ] [Jiang, San Ping]Curtin Univ, WA Sch Mines Minerals Energy & Chem Engn, Perth, WA 6102, Australia
  • [ 8 ] [Guan, Chengzhi]Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China
  • [ 9 ] [Fang, Huihuang]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst NERC CF, Fuzhou 350002, Fujian, Peoples R China
  • [ 10 ] [Luo, Yu]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst NERC CF, Fuzhou 350002, Fujian, Peoples R China

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Source :

ELECTROCHIMICA ACTA

ISSN: 0013-4686

Year: 2022

Volume: 424

6 . 6

JCR@2022

5 . 5 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

ESI HC Threshold:74

JCR Journal Grade:2

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 7

SCOPUS Cited Count: 8

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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