TY - JOUR
T1 - A high-performance and durable direct NH3 tubular protonic ceramic fuel cell integrated with an internal catalyst layer
AU - Pan, Yuxin
AU - Zhang, Hua
AU - Xu, Kang
AU - Zhou, Yucun
AU - Zhao, Bote
AU - Yuan, Wei
AU - Sasaki, Kotaro
AU - Choi, YongMan
AU - Chen, Yu
AU - Liu, Meilin
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/6/5
Y1 - 2022/6/5
N2 - Nickel-based cermet anode-supported protonic ceramic fuel cells (PCFCs) show great potential for direct utilization of ammonia. However, the insufficient activity of anode and the deterioration of anode activity/durability caused by the undesired interaction between nickel and ammonia greatly limit the application. Here, we report tubular PCFCs embedded with a catalytic iron layer. Such cells show peak power densities of 1.507 W cm-2 and 1.078 W cm-2 at 700 °C when using H2 and NH3 as fuel, respectively, which are the highest tubular PCFC performance so far ever reported. In addition, the stability of cells with the catalyst layer has been dramatically enhanced when compared with that of cells without the catalyst layer. The enhancement of activity and durability is attributed to the catalytic activity of iron for ammonia decomposition, through which the direct contact between nickel and ammonia has been minimized and the anode structure has therefore been protected.
AB - Nickel-based cermet anode-supported protonic ceramic fuel cells (PCFCs) show great potential for direct utilization of ammonia. However, the insufficient activity of anode and the deterioration of anode activity/durability caused by the undesired interaction between nickel and ammonia greatly limit the application. Here, we report tubular PCFCs embedded with a catalytic iron layer. Such cells show peak power densities of 1.507 W cm-2 and 1.078 W cm-2 at 700 °C when using H2 and NH3 as fuel, respectively, which are the highest tubular PCFC performance so far ever reported. In addition, the stability of cells with the catalyst layer has been dramatically enhanced when compared with that of cells without the catalyst layer. The enhancement of activity and durability is attributed to the catalytic activity of iron for ammonia decomposition, through which the direct contact between nickel and ammonia has been minimized and the anode structure has therefore been protected.
KW - Protonic ceramic fuel cells
KW - Tubular cells
KW - Ammonia fuel
KW - Catalytic layer
UR - http://www.scopus.com/inward/record.url?scp=85122623664&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2022.121071
DO - 10.1016/j.apcatb.2022.121071
M3 - Article
AN - SCOPUS:85122623664
SN - 0926-3373
VL - 306
SP - 1
EP - 9
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 121071
ER -