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author:

Qian, Jiaqi (Qian, Jiaqi.) [1] | Lin, Changgen (Lin, Changgen.) [2] | Chen, Zhiyi (Chen, Zhiyi.) [3] | Huang, Jiongyuan (Huang, Jiongyuan.) [4] | Ai, Na (Ai, Na.) [5] (Scholars:艾娜) | Jiang, San Ping (Jiang, San Ping.) [6] | Zhou, Xiaoliang (Zhou, Xiaoliang.) [7] | Wang, Xin (Wang, Xin.) [8] (Scholars:王欣) | Shao, Yanqun (Shao, Yanqun.) [9] (Scholars:邵艳群) | Chen, Kongfa (Chen, Kongfa.) [10] (Scholars:陈孔发)

Indexed by:

Scopus SCIE

Abstract:

La0.9Sr0.1Ga0.8Mg0.2O3 (LSGM) with an extraordinary oxygen-ion conductivity has been extensively studied as an electrolyte material for intermediate temperature solid oxide cells (SOCs). However, the conventional hightemperature sintering process of electrodes results in detrimental reaction between LSGM and Ni-based hydrogen electrode and microstructural coarsening of the electrode. Herein, a buffer-layer-free LSGM electrolyte-supported single cell with a nanostructured Ni-Gd0.1Ce0.9O1.95 (GDC) electrode is developed using a sintering-free fabrication approach. The cell exhibits a peak power density of 1.23 W cm-2 at 800 degrees C and an electrolysis current density of 1.85 A cm-2 at 1.5 V with excellent operating stability. The good performance and durability is owing to the synergistic effects of the elimination of elemental interdiffusion at the electrode/ electrolyte interface, polarization induced in situ formation of hetero-interfaces between Ni-GDC and LSGM, and remarkable structural stability of Ni-GDC. This study provides an innovative means for the development of efficient and durable buffer-layer-free LSGM-supported SOCs.

Keyword:

Buffer -layer -free Elemental interdiffusion Interface formation Nanostructure Sintering -free

Community:

  • [ 1 ] [Qian, Jiaqi]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 2 ] [Lin, Changgen]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 3 ] [Chen, Zhiyi]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 4 ] [Huang, Jiongyuan]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 5 ] [Wang, Xin]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 6 ] [Shao, Yanqun]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 7 ] [Chen, Kongfa]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China
  • [ 8 ] [Ai, Na]Fuzhou Univ, Fujian Coll Assoc Instrumental Anal Ctr, Fuzhou 350108, Fujian, Peoples R China
  • [ 9 ] [Jiang, San Ping]Guangdong Lab, Foshan Xianhu Lab Adv Energy Sci & Technol, Foshan 528216, Guangdong, Peoples R China
  • [ 10 ] [Jiang, San Ping]Curtin Univ, WA Sch Mines Minerals Energy & Chem Engn, Perth, WA 6102, Australia
  • [ 11 ] [Zhou, Xiaoliang]Southwest Petr Univ, Coll Chem & Chem Engn, Chengdu 610500, Peoples R China

Reprint 's Address:

  • 陈孔发

    [Chen, Kongfa]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350108, Fujian, Peoples R China

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Source :

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

ISSN: 0926-3373

Year: 2024

Volume: 346

2 0 . 3 0 0

JCR@2023

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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