Open AccessTailoring cobalt‐free La 0.5 Sr 0.5 FeO 3‐δ cathode with a nonmetal cation‐doping strategy for high‐performance proton‐conducting solid oxide fuel cells
Author(s) -
Yin Yanru,
Dai Hailu,
Yu Shoufu,
Bi Lei,
Traversa Enrico
Publication year - 2022
Publication title -
susmat
Language(s) - English
Resource type - Journals
ISSN - 2692-4552
DOI - 10.1002/sus2.100
Subject(s) - nonmetal , cathode , materials science , dopant , doping , oxide , inorganic chemistry , solid oxide fuel cell , cobalt , proton , metal , analytical chemistry (journal) , metallurgy , chemistry , anode , optoelectronics , electrode , physics , quantum mechanics , chromatography
A nonmetal doping strategy was exploited for the conventional La 0.5 Sr 0.5 FeO 3‐ δ (LSF) cathode, allowing high performance for proton‐conducting solid oxide fuel cells (H‐SOFCs). Unlike previous studies focusing on the utilization of metal oxides as dopants, phosphorus, which is a nonmetal element, was used as the cation dopant for LSF by partially replacing Fe ions to form the new La 0.5 Sr 0.5 Fe 0.9 P 0.1 O 3‐ δ (LSFP) compound. The H‐SOFC using the LSFP cathode showed a two‐fold peak power density as compared to that using the LSF cathode.