Mesoporous NiO-Samaria doped ceria fuel cell materials.
The mesoporous NiO-SDC was synthesized using a cationic surfactant (cetyl-trimethylammonium bromide; CTAB) for obtaining wide triple-phase boundary (TPB) in solid oxide fuel cells (SOFCs). The microstructure of mesoporous NiO-SDC was characterized by XRD, SEM, BET, and HRTEM and the results showed that the mesoporous NiO-SDC with 6.3 nm pores could be obtained. After calcined at 600 degrees C, the surface area of NiO-SDC was 206 m2/g, which was sufficiently high for providing large TPB in SOFC anode. In addition, FT-IR measurements revealed that Ni(OH)2 and SDC were incorporated with amine group of CTAB.
Eom
Tae Wook
TW
Department of Chemical and Bio Engineering, Kyungwon University, Seongnam, 461-701, Korea.
Kim
Kyung Hwan
KH
Kim
Jong Sung
JS
Jo
Myung-Chan
MC
Yoon
Hyon Hee
HH
Park
Sang Joon
SJ