Electrochemical behavior and performances of Ni-BaZr 0·1 Ce 0·7 Y 0.1 Yb 0.1 O 3−δ cermet anodes for protonic ceramic fuel cell - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue International Journal of Hydrogen Energy Année : 2018

Electrochemical behavior and performances of Ni-BaZr 0·1 Ce 0·7 Y 0.1 Yb 0.1 O 3−δ cermet anodes for protonic ceramic fuel cell

Résumé

High performance Ni-BCZYYb cermet anode were prepared at 1300 °C using electrolyte powders prepared by combustion and commercial NiO. The cermets are porous (39 vol% of porosity), show a high electronic conductivity (1097 S cm−1) and sufficient mechanical properties. The electrochemical behavior of the Ni-BCZYYb/BZCYYb-ZnO/Ni-BCZYYb symmetrical cell elaborated by co-pressing and co-sintering was investigated using electrochemical impedance spectroscopy. The impedance spectroscopy study show that the electrode reaction involves three steps. The total polarization Area Specific Resistance decreases by about one order of magnitude when increasing the temperature from 450 to 600 °C or the H2 concentration from 5 to 100 vol% to reach 0.049 Ω cm2 at 600 °C under pure hydrogen.

Domaines

Chimie
Fichier non déposé

Dates et versions

hal-01721735 , version 1 (02-03-2018)

Identifiants

Citer

P. Pers, V. Mao, M. Taillades, G. Taillades. Electrochemical behavior and performances of Ni-BaZr 0·1 Ce 0·7 Y 0.1 Yb 0.1 O 3−δ cermet anodes for protonic ceramic fuel cell. International Journal of Hydrogen Energy, 2018, 43 (4), pp.2402 - 2409. ⟨10.1016/j.ijhydene.2017.12.024⟩. ⟨hal-01721735⟩
27 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More