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author：

Qian, J. (Qian, J..) [1] | Lin, C. (Lin, C..) [2] | Chen, Z. (Chen, Z..) [3] | Huang, J. (Huang, J..) [4] | Ai, N. (Ai, N..) [5] | Jiang, S.P. (Jiang, S.P..) [6] | Zhou, X. (Zhou, X..) [7] | Wang, X. (Wang, X..) [8] | Shao, Y. (Shao, Y..) [9] | Chen, K. (Chen, K..) [10]

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Scopus

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　high-temperature　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　°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.　©　2024　Elsevier　B.V.

Keyword：

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

Community：

  • [ 1 ] [Qian J.]College of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 2 ] [Lin C.]College of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 3 ] [Chen Z.]College of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 4 ] [Huang J.]College of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 5 ] [Ai N.]Fujian College Association Instrumental Analysis Center, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 6 ] [Jiang S.P.]Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Guangdong, Foshan, 528216, China
  • [ 7 ] [Jiang S.P.]WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth, 6102, WA, Australia
  • [ 8 ] [Zhou X.]College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, China
  • [ 9 ] [Wang X.]College of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 10 ] [Shao Y.]College of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China
  • [ 11 ] [Chen K.]College of Materials Science and Engineering, Fuzhou University, Fujian, Fuzhou, 350108, China

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Source ：

Applied Catalysis B: Environmental

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： 3

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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