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Comparative Study of Ammonia‐fueled Solid Oxide Fuel Cell Systems
Author(s) -
Okanishi T.,
Okura K.,
Srifa A.,
Muroyama H.,
Matsui T.,
Kishimoto M.,
Saito M.,
Iwai H.,
Yoshida H.,
Saito M.,
Koide T.,
Iwai H.,
Suzuki S.,
Takahashi Y.,
Horiuchi T.,
Yamasaki H.,
Matsumoto S.,
Yumoto S.,
Kubo H.,
Kawahara J.,
Okabe A.,
Kikkawa Y.,
Isomura T.,
Eguchi K.
Publication year - 2017
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201600165
Subject(s) - stack (abstract data type) , solid oxide fuel cell , decomposition , catalysis , ammonia , oxide , fuel cells , materials science , chemical engineering , degradation (telecommunications) , chemistry , inorganic chemistry , metallurgy , electrode , organic chemistry , computer science , telecommunications , anode , programming language , engineering
Several solid oxide fuel cell (SOFC) systems can be considered for the NH 3 utilization. In this study, the catalytic activity and long‐term stability of the NH 3 decomposition reactor with the Ni/Y 2 O 3 ‐based catalysts and the autothermal NH 3 cracker with the Co–Ce–Zr composite oxide catalyst were investigated. Moreover, the NH 3 decomposition reactor and the autothermal NH 3 cracker were combined with the SOFC stack and their performances of the stack were compared to those fueled with NH 3 and H 2 /N 2 . The power output of each SOFC stack was over 200 W. Moreover, it was demonstrated that the direct NH 3 ‐fueled SOFC stack was stable for 1,000 h at 770 °C without significant degradation.