Open AccessRedox‐Reversible Iron Orthovanadate Cathode for Solid Oxide Steam Electrolyzer
Author(s) -
Gan Lizhen,
Ye Lingting,
Ruan Cong,
Chen Shigang,
Xie Kui
Publication year - 2016
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201500186
Subject(s) - cathode , materials science , cermet , high temperature electrolysis , electrolysis , oxide , chemical engineering , anode , redox , inorganic chemistry , metallurgy , electrolyte , electrode , chemistry , ceramic , engineering
A redox‐reversible iron orthovanadate cathode is demonstrated for a solid oxide electrolyser with up to 100% current efficiency for steam electrolysis. The iron catalyst is grown on spinel‐type electronic conductor FeV 2 O 4 by in situ tailoring the reversible phase change of FeVO 4 to Fe + FeV 2 O 4 in a reducing atmosphere. Promising electrode performances have been obtained for a solid oxide steam electrolyser based on this composite cathode.