Mesoporous NiO-Samaria Doped Ceria for Low-Temperature Solid Oxide Fuel Cells
- Authors
- Kim, Jin-Yeop; Kim, Ji Hyeon; Choi, Hyung Wook; Kim, Kyung Hwan; Park, Sang Joon
- Issue Date
- Aug-2014
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Mesoporous SDC; Solid Oxide Fuel Cells; Triple Phase Boundary; Surfactant
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.8, pp.6399 - 6403
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 14
- Number
- 8
- Start Page
- 6399
- End Page
- 6403
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/12392
- DOI
- 10.1166/jnn.2014.8452
- ISSN
- 1533-4880
- Abstract
- In order to prepare anode material for low-temperature solid oxide fuel cells (SOFCs), the mesoporous NiO-SDC was synthesized using a cationic surfactant (cetyltrimethyl-ammonium bromide; CTAB) for obtaining wide triple-phase boundary (TPB). In addition, Ni-SDC anode-supported SOFC single cells with YSZ electrolyte and LSM cathode were fabricated and the performance of single cells was evaluated at 600 degrees C. The microstructure of NiO-SDC was characterized by XRD, EDX, SEM, and BET, and the results showed that the mesoporous NiO-SDC with 10 nm pores could be obtained. It was found that the surface area and the electrical performance were strongly influenced by the Ni content in Ni-SDC cermets. After calcined at 600 degrees C, the surface area of NiO-SDC was between 90-117 m(2)/g at 35-45 Ni wt%, which was sufficiently high for providing large TPB in SOFC anode. The optimum Ni content for cell performance was around 45 wt% and the corresponding MPD was 0.36 W/cm(2). Indeed, the mesoporous NiO-SDC cermet may be of interest for use as an anode for low-temperature SOFCs.
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