Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ
Development of electrocatalysts for the oxygen evolution reaction (OER) plays a critical role in electrochemical water splitting systems. Perovskite oxides represent one category of efficient catalysts for the OER, among which Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) has been extensively studied. In this wor...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Pergamon
2016
|
| Online Access: | http://hdl.handle.net/20.500.11937/47641 |
| _version_ | 1848757889221525504 |
|---|---|
| author | Xu, X. Pan, Y. Zhou, W. Chen, Y. Zhang, Z. Shao, Zongping |
| author_facet | Xu, X. Pan, Y. Zhou, W. Chen, Y. Zhang, Z. Shao, Zongping |
| author_sort | Xu, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Development of electrocatalysts for the oxygen evolution reaction (OER) plays a critical role in electrochemical water splitting systems. Perovskite oxides represent one category of efficient catalysts for the OER, among which Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) has been extensively studied. In this work, we discussed the effect of synthesis approaches on the OER performance of BSCF. Three routes, including solution combustion, sol-gel process and solid-state reaction, were applied to synthesize the bulk-sized BSCF perovskites, denoted as BSCF-SC, BSCF-SG and BSCF-SS, respectively. Electrochemical measurements revealed varied OER performance, with BSCF-SS showing the highest intrinsic activity much better than that of BSCF-SC and BSCF-SG. The activity difference may originate from the variation in the surface oxidation states of the B-site cobalt cations. Moreover, all the BSCF perovskites exhibited comparably good stability in catalyzing the OER. In light of the simplicity, the viability for scale-up and the high activity of BSCF-SS, solid-state reaction may be a suitable way for fabricating highly-active BSCF electrocatalyst. This study could provide new insight into enhanced oxygen evolution on perovskite oxides by selecting an optimized synthesis approach. |
| first_indexed | 2025-11-14T09:35:16Z |
| format | Journal Article |
| id | curtin-20.500.11937-47641 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:35:16Z |
| publishDate | 2016 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-476412017-09-13T14:15:44Z Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ Xu, X. Pan, Y. Zhou, W. Chen, Y. Zhang, Z. Shao, Zongping Development of electrocatalysts for the oxygen evolution reaction (OER) plays a critical role in electrochemical water splitting systems. Perovskite oxides represent one category of efficient catalysts for the OER, among which Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) has been extensively studied. In this work, we discussed the effect of synthesis approaches on the OER performance of BSCF. Three routes, including solution combustion, sol-gel process and solid-state reaction, were applied to synthesize the bulk-sized BSCF perovskites, denoted as BSCF-SC, BSCF-SG and BSCF-SS, respectively. Electrochemical measurements revealed varied OER performance, with BSCF-SS showing the highest intrinsic activity much better than that of BSCF-SC and BSCF-SG. The activity difference may originate from the variation in the surface oxidation states of the B-site cobalt cations. Moreover, all the BSCF perovskites exhibited comparably good stability in catalyzing the OER. In light of the simplicity, the viability for scale-up and the high activity of BSCF-SS, solid-state reaction may be a suitable way for fabricating highly-active BSCF electrocatalyst. This study could provide new insight into enhanced oxygen evolution on perovskite oxides by selecting an optimized synthesis approach. 2016 Journal Article http://hdl.handle.net/20.500.11937/47641 10.1016/j.electacta.2016.10.031 Pergamon restricted |
| spellingShingle | Xu, X. Pan, Y. Zhou, W. Chen, Y. Zhang, Z. Shao, Zongping Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ |
| title | Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ |
| title_full | Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ |
| title_fullStr | Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ |
| title_full_unstemmed | Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ |
| title_short | Toward Enhanced Oxygen Evolution on Perovskite Oxides Synthesized from Different Approaches: A Case Study of Ba0.5Sr0.5Co0.8Fe0.2O3−δ |
| title_sort | toward enhanced oxygen evolution on perovskite oxides synthesized from different approaches: a case study of ba0.5sr0.5co0.8fe0.2o3−δ |
| url | http://hdl.handle.net/20.500.11937/47641 |