Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique
Silver-modified Ba0.5Sr0.5Co0.8Fe0.2O3-d (Ag/BSCF) electrodes were prepared using an electroless deposition technique. The morphology, microstructure and oxygen reduction reaction activity of the resulted Ag/BSCF electrodes were comparatively studied using Fourier transform infrared spectra, environ...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier SA
2009
|
| Online Access: | http://hdl.handle.net/20.500.11937/39000 |
| _version_ | 1848755471546056704 |
|---|---|
| author | Zhou, W. Ran, R. Cai, R. Shao, Zongping Jin, W. Xu, N. |
| author_facet | Zhou, W. Ran, R. Cai, R. Shao, Zongping Jin, W. Xu, N. |
| author_sort | Zhou, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Silver-modified Ba0.5Sr0.5Co0.8Fe0.2O3-d (Ag/BSCF) electrodes were prepared using an electroless deposition technique. The morphology, microstructure and oxygen reduction reaction activity of the resulted Ag/BSCF electrodes were comparatively studied using Fourier transform infrared spectra, environmental scanning electron microscopy, temperature-programmed oxygen desorption, X-ray diffraction, and electrochemical impedance spectroscopy. An area-specific resistance as low as 0.038 O cm2 was achieved for N2H4-reduced Ag/BSCF cathode at 600 °C. Carbonates were detected over the BSCF surface during the reduction of silver, which deteriorated both the charge-transfer process and diffusion process of HCHO-reduced Ag/BSCF cathode for the oxygen electrochemical reduction reaction. An anode-supported single cell with an N2H4-reduced Ag/BSCF cathode showed a peak power of 826 mW cm-2 at 600 °C. In comparison, only 672 mW cm-2 was observed with the HCHO-reduced Ag/BSCF cathode. © 2008 Elsevier B.V. All rights reserved. |
| first_indexed | 2025-11-14T08:56:50Z |
| format | Journal Article |
| id | curtin-20.500.11937-39000 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:56:50Z |
| publishDate | 2009 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-390002017-09-13T14:20:16Z Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique Zhou, W. Ran, R. Cai, R. Shao, Zongping Jin, W. Xu, N. Silver-modified Ba0.5Sr0.5Co0.8Fe0.2O3-d (Ag/BSCF) electrodes were prepared using an electroless deposition technique. The morphology, microstructure and oxygen reduction reaction activity of the resulted Ag/BSCF electrodes were comparatively studied using Fourier transform infrared spectra, environmental scanning electron microscopy, temperature-programmed oxygen desorption, X-ray diffraction, and electrochemical impedance spectroscopy. An area-specific resistance as low as 0.038 O cm2 was achieved for N2H4-reduced Ag/BSCF cathode at 600 °C. Carbonates were detected over the BSCF surface during the reduction of silver, which deteriorated both the charge-transfer process and diffusion process of HCHO-reduced Ag/BSCF cathode for the oxygen electrochemical reduction reaction. An anode-supported single cell with an N2H4-reduced Ag/BSCF cathode showed a peak power of 826 mW cm-2 at 600 °C. In comparison, only 672 mW cm-2 was observed with the HCHO-reduced Ag/BSCF cathode. © 2008 Elsevier B.V. All rights reserved. 2009 Journal Article http://hdl.handle.net/20.500.11937/39000 10.1016/j.jpowsour.2008.10.055 Elsevier SA restricted |
| spellingShingle | Zhou, W. Ran, R. Cai, R. Shao, Zongping Jin, W. Xu, N. Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique |
| title | Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique |
| title_full | Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique |
| title_fullStr | Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique |
| title_full_unstemmed | Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique |
| title_short | Effect of a reducing agent for silver on the electrochemical activity of an Ag/Ba0.5Sr0.5Co0.8Fe0.2O3-d electrode prepared by electroless deposition technique |
| title_sort | effect of a reducing agent for silver on the electrochemical activity of an ag/ba0.5sr0.5co0.8fe0.2o3-d electrode prepared by electroless deposition technique |
| url | http://hdl.handle.net/20.500.11937/39000 |