Structure, Oxygen Transport Properties and Electrode Performance of Ca-Substituted Nd2NiO4 Full article
| Conference |
13th International Symposium on Systems with Fast Ionic Transport 03-07 Jul 2018 , Минск |
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| Journal |
Solid State Ionics
ISSN: 0167-2738 |
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| Output data | Year: 2019, Volume: 335, Pages: 53-60 Pages count : 8 DOI: 10.1016/j.ssi.2019.02.012 | ||||||||||
| Tags | SOFC; Nd2NiO4; Cathode; Ca doping; Transport properties; Isotope exchange; Electrochemical behavior | ||||||||||
| Authors |
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| Affiliations |
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Funding (5)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0013 |
| 2 | Russian Science Foundation | 16-13-00112 |
| 3 | Russian Foundation for Basic Research | 18-38-20063 (АААА-А18-118102390007-8) |
| 4 | The Ministry of Education and Science of the Russian Federation | 02.A03.21.0006 |
| 5 | Russian Science Foundation | 16-19-00104 |
Abstract:
Mixed ionic-electronic conductors are of great interest for development of oxygen separation membranes and air electrodes for intermediate temperature solid oxide fuel and electrolysis cells. This work presents the results of studying the structure, transport properties and oxygen mobility in Nd2−xCaxNiO4 oxides (x = 0–0.5), synthesized via a solution-assisted solid state reaction method, in correlation with the over-stoichiometric oxygen content. High oxygen mobility was demonstrated in the low-doped materials (DO ~ 10−10–10−8 cm2/s at 700 °C) which corresponded to the ionic (oxygen) conductivity values ~ 10−4–10−2 S/cm, comparable to those for widely used solid electrolytes and state-of-the-art cathode materials. The polarization resistance of the Nd2−xCaxNiO4+δ electrodes in contact with Ce0.8Sm0.2O1.9 electrolyte was shown to have non-linear dependency on Ca content, which may be caused by the influence of two opposite tendencies for decreasing over-stoichiometric oxygen and oxygen diffusivity and increasing the total conductivity with Ca doping. High electrical and electrochemical characteristics along with oxygen mobility mean the materials developed display high potential for electrochemical and catalytic applications.
Cite:
Pikalova E.Y.
, Sadykov V.A.
, Filonova E.A.
, Eremeev N.F.
, Sadovskaya E.M.
, Pikalov S.M.
, Bogdanovich N.M.
, Lyagaeva J.G.
, Kolchugin A.A.
, Vedmid' L.B.
, Ishchenko A.V.
, Goncharov V.B.
Structure, Oxygen Transport Properties and Electrode Performance of Ca-Substituted Nd2NiO4
Solid State Ionics. 2019. V.335. P.53-60. DOI: 10.1016/j.ssi.2019.02.012 WOS Scopus РИНЦ AN OpenAlex
Structure, Oxygen Transport Properties and Electrode Performance of Ca-Substituted Nd2NiO4
Solid State Ionics. 2019. V.335. P.53-60. DOI: 10.1016/j.ssi.2019.02.012 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Aug 31, 2018 |
| Accepted: | Feb 13, 2019 |
| Published online: | Feb 26, 2019 |
| Published print: | Jul 1, 2019 |
Identifiers:
| Web of science: | WOS:000466829700008 |
| Scopus: | 2-s2.0-85061974411 |
| Elibrary: | 38650944 |
| Chemical Abstracts: | 2019:378000 |
| OpenAlex: | W2915814465 |