LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells
Nanostructured La0.6Sr0.4Co0.2Fe 0.8O3-d (LSCF) oxide powder was synthesized by a facile autocombustion process based on a modified glycine-nitrate process (GNP) using cellulose fiber as micro-reactor. As compared with the normal GNP, this novel process allows the combustion to proceed in a much mor...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Wiley-Blackwell Publishing, Inc.
2008
|
| Online Access: | http://hdl.handle.net/20.500.11937/20934 |
| _version_ | 1848750448791519232 |
|---|---|
| author | Zhou, W. Shao, Zongping Ran, R. Gu, H. Jin, W. Xu, N. |
| author_facet | Zhou, W. Shao, Zongping Ran, R. Gu, H. Jin, W. Xu, N. |
| author_sort | Zhou, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Nanostructured La0.6Sr0.4Co0.2Fe 0.8O3-d (LSCF) oxide powder was synthesized by a facile autocombustion process based on a modified glycine-nitrate process (GNP) using cellulose fiber as micro-reactor. As compared with the normal GNP, this novel process allows the combustion to proceed in a much more environmentally friendly and controllable way. The resulted powder is nanocrystallized with particle size of only 15-20 nm as observed by transmission electron microscopy examination. More importantly, because the metal ions could disperse homogenously in cellulose-GN precursor, SrCO3 impurity was effectively suppressed. The concentrations of SrCO3 impurity in LSCF products were determined by carbon dioxide-temperature-programmed desorption technique, which decreased to as low as 1.3 wt% from cellulose-GN process, in contrast to 4.3 wt% from the normal GNP. These features resulted in the attractive improvement of its cathode performance in solid-oxide fuel cells (SOFCs). The interfacial resistances of only ~0.70 and ~0.36 O·cm2 at 600° and 650°C under air, respectively, were observed, which was about two times better than the LSCF cathode derived from the normal GNP. A peak power density of ~346 mW/cm2 was achieved at 600°C with cellulose-GN-derived LSCF cathode based on thin-film Sm0.2Ce0.8O1.9 electrolyte SOFC using 3% humidified H2 as the fuel. © 2008 The American Ceramic Society. |
| first_indexed | 2025-11-14T07:37:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-20934 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:37:00Z |
| publishDate | 2008 |
| publisher | Wiley-Blackwell Publishing, Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-209342017-09-13T13:46:48Z LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells Zhou, W. Shao, Zongping Ran, R. Gu, H. Jin, W. Xu, N. Nanostructured La0.6Sr0.4Co0.2Fe 0.8O3-d (LSCF) oxide powder was synthesized by a facile autocombustion process based on a modified glycine-nitrate process (GNP) using cellulose fiber as micro-reactor. As compared with the normal GNP, this novel process allows the combustion to proceed in a much more environmentally friendly and controllable way. The resulted powder is nanocrystallized with particle size of only 15-20 nm as observed by transmission electron microscopy examination. More importantly, because the metal ions could disperse homogenously in cellulose-GN precursor, SrCO3 impurity was effectively suppressed. The concentrations of SrCO3 impurity in LSCF products were determined by carbon dioxide-temperature-programmed desorption technique, which decreased to as low as 1.3 wt% from cellulose-GN process, in contrast to 4.3 wt% from the normal GNP. These features resulted in the attractive improvement of its cathode performance in solid-oxide fuel cells (SOFCs). The interfacial resistances of only ~0.70 and ~0.36 O·cm2 at 600° and 650°C under air, respectively, were observed, which was about two times better than the LSCF cathode derived from the normal GNP. A peak power density of ~346 mW/cm2 was achieved at 600°C with cellulose-GN-derived LSCF cathode based on thin-film Sm0.2Ce0.8O1.9 electrolyte SOFC using 3% humidified H2 as the fuel. © 2008 The American Ceramic Society. 2008 Journal Article http://hdl.handle.net/20.500.11937/20934 10.1111/j.1551-2916.2007.02242.x Wiley-Blackwell Publishing, Inc. restricted |
| spellingShingle | Zhou, W. Shao, Zongping Ran, R. Gu, H. Jin, W. Xu, N. LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells |
| title | LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells |
| title_full | LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells |
| title_fullStr | LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells |
| title_full_unstemmed | LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells |
| title_short | LSCF nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells |
| title_sort | lscf nanopowder from cellulose-glycine-nitrate process and its application in intermediate-temperature solid-oxide fuel cells |
| url | http://hdl.handle.net/20.500.11937/20934 |