A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media
Owing to the slow kinetics of oxygen evolution reaction (OER), developing highly active and stable OER catalysts is of great importance to realize the industrial operation for water electrolysis, reversible fuel cells and so on. Here, we report a highly active and stable La 0.5 Sr 0.5 Ni 0.4 Fe 0.6...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Pergamon
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/56999 |
| _version_ | 1848759990697852928 |
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| author | Wang, C. Cheng, Y. Ianni, E. Jiang, San Ping Lin, B. |
| author_facet | Wang, C. Cheng, Y. Ianni, E. Jiang, San Ping Lin, B. |
| author_sort | Wang, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Owing to the slow kinetics of oxygen evolution reaction (OER), developing highly active and stable OER catalysts is of great importance to realize the industrial operation for water electrolysis, reversible fuel cells and so on. Here, we report a highly active and stable La 0.5 Sr 0.5 Ni 0.4 Fe 0.6 O 3-d perovskite electrocatalyst for OER in alkaline media. La 0.5 Sr 0.5 Ni x Fe 1-x O 3-d (LSNF) perovskites with different Ni/Fe ratio were synthesized by a typical sol-gel route and investigated as potential cobalt-free OER perovskite electrocatalysts. Synchrotron XRD quantification analysis was applied to quantify the crystal structural details and changes. La 0.5 Sr 0.5 Ni 0.4 Fe 0.6 O 3-d (LSNF-5546) materials show significantly higher intrinsic activities and better stability in 0.1 M KOH for the OER including onset potential (1.56 V) and Tafel slope (76 mV/dec), higher than that of other LSNF and state-of-the-art perovskite electrocatalyst Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-d (BSCF-5582). This work demonstrates that La 0.5 Sr 0.5 Ni 0.4 Fe 0.6 O 3-d (LSNF-5546) can be a new kind of cost-effective and high-performance perovskite electrocatalyst for OER in alkaline solution, and the simple doping strategy would be a practical way to enhance oxygen evolution on perovskite electrocatalysts. |
| first_indexed | 2025-11-14T10:08:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-56999 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:08:40Z |
| publishDate | 2017 |
| publisher | Pergamon |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-569992018-02-05T07:01:44Z A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media Wang, C. Cheng, Y. Ianni, E. Jiang, San Ping Lin, B. Owing to the slow kinetics of oxygen evolution reaction (OER), developing highly active and stable OER catalysts is of great importance to realize the industrial operation for water electrolysis, reversible fuel cells and so on. Here, we report a highly active and stable La 0.5 Sr 0.5 Ni 0.4 Fe 0.6 O 3-d perovskite electrocatalyst for OER in alkaline media. La 0.5 Sr 0.5 Ni x Fe 1-x O 3-d (LSNF) perovskites with different Ni/Fe ratio were synthesized by a typical sol-gel route and investigated as potential cobalt-free OER perovskite electrocatalysts. Synchrotron XRD quantification analysis was applied to quantify the crystal structural details and changes. La 0.5 Sr 0.5 Ni 0.4 Fe 0.6 O 3-d (LSNF-5546) materials show significantly higher intrinsic activities and better stability in 0.1 M KOH for the OER including onset potential (1.56 V) and Tafel slope (76 mV/dec), higher than that of other LSNF and state-of-the-art perovskite electrocatalyst Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-d (BSCF-5582). This work demonstrates that La 0.5 Sr 0.5 Ni 0.4 Fe 0.6 O 3-d (LSNF-5546) can be a new kind of cost-effective and high-performance perovskite electrocatalyst for OER in alkaline solution, and the simple doping strategy would be a practical way to enhance oxygen evolution on perovskite electrocatalysts. 2017 Journal Article http://hdl.handle.net/20.500.11937/56999 10.1016/j.electacta.2017.06.161 Pergamon restricted |
| spellingShingle | Wang, C. Cheng, Y. Ianni, E. Jiang, San Ping Lin, B. A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media |
| title | A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media |
| title_full | A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media |
| title_fullStr | A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media |
| title_full_unstemmed | A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media |
| title_short | A highly active and stable La0.5Sr0.5Ni0.4Fe0.6O3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media |
| title_sort | highly active and stable la0.5sr0.5ni0.4fe0.6o3-δ perovskite electrocatalyst for oxygen evolution reaction in alkaline media |
| url | http://hdl.handle.net/20.500.11937/56999 |