Transport Properties of Ca-Doped Ln2NiO4 for Intermediate Temperature Solid Oxide Fuel Cells Cathodes and Catalytic Membranes for Hydrogen Production
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
10th International Conference on Sustainable Energy & Environmental Protection
27-30 Jun 2017
,
Bled
|
| Journal |
International Journal of Hydrogen Energy
ISSN: 0360-3199
, E-ISSN: 1879-3487
|
| Output data |
Year: 2020,
Volume: 45,
Number: 25,
Pages: 13625-13642
Pages count
: 18
DOI:
10.1016/j.ijhydene.2018.03.039
|
| Tags |
Doped Ln2NiO4+δ, Electrochemical performance, Hydrogen production, Isotope exchange, MIEC membrane, SOFC cathode |
| Authors |
Sadykov Vladislav A.
1,2
,
Pikalova Elena Yu.
3,4
,
Kolchugin Alexander A.
3,4
,
Fetisov Andrey V.
5
,
Sadovskaya Ekaterina M.
1,2
,
Filonova Elena A.
4
,
Eremeev Nikita F.
1
,
Goncharov Vladimir B.
1
,
Krasnov Alexey V.
1
,
Skriabin Pavel I.
1
,
Shmakov Alexander N.
1,2,6
,
Vinokurov Zakhar S.
1
,
Ishchenko Arcady V.
1,2
,
Pikalov Sergey M.
5
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS, Pr. Akad. Lavrentieva 5, Novosibirsk, 630090, Russia
|
| 2 |
Novosibirsk State University, Pirogova Str. 2, Novosibirsk, 630090, Russia
|
| 3 |
Institute of High Temperature Electrochemistry, UB RAS, Akademicheskaya Str. 20, Yekaterinburg, 620137, Russia
|
| 4 |
Ural Federal University, Mira Str. 19, Yekaterinburg, 620002, Russia
|
| 5 |
Institute of Metallurgy, UB RAS, Amundsena Str. 101, Yekaterinburg, 620137, Russia
|
| 6 |
Budker Institute of Nuclear Physics SB RAS, Pr. Akad. Lavrentieva 11, Novosibirsk, 630090, Russia
|
|
Funding (4)
|
1
|
Russian Science Foundation
|
16-13-00112
|
|
2
|
Federal Agency for Scientific Organizations
|
0303-2016-0013
|
|
3
|
The Ministry of Education and Science of the Russian Federation
|
02.A03.21.0006
|
|
4
|
Federal Agency for Scientific Organizations
|
007-ГЗ/У4197/395
|
Novel methods were applied in this work to elucidate the structure evolution of Ln2-xCaxNiO4+δ oxides (Ln = La, Pr, Nd; x = 0, 0.3) and study their oxygen mobility. Relationship between cations state, structural, electrical, electrochemical and kinetic properties was revealed. In all doped materials the overall oxygen mobility characterized by Do declined by more than an order of magnitude due to decreasing the interstitial oxygen content and hampering cooperative mechanism of oxygen migration. For La nikelate additional slow diffusion channel appears with DO 5.4·10−14 cm2/s at 700 K. Correlation of electrochemical and oxygen transport properties was demonstrated. A high electrical conductivity (up to 120 S/cm at 700 K) in Ln1.7Ca0.3NiO4+δ (Ln = Pr, Nd) along with satisfactory oxygen mobility and electrochemical properties makes these materials promising for a wide row of electrochemical applications.