Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles
Research on the efficient synthesis and application of nanostructured perovskite oxides is attracting intensive attention nowadays. Herein, a silver (Ag) nanoparticle decorated A-site deficient perovskite is prepared using a facile exsolution method and used as a cathode in dye-sensitized solar cell...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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ROYAL SOC CHEMISTRY
2019
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| Online Access: | http://purl.org/au-research/grants/arc/DP150104365 http://hdl.handle.net/20.500.11937/91953 |
| _version_ | 1848765604287217664 |
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| author | Xu, M. Wang, Wei Zhong, Yijun Xu, Xiaomin Wang, J. Zhou, W. Shao, Zongping |
| author_facet | Xu, M. Wang, Wei Zhong, Yijun Xu, Xiaomin Wang, J. Zhou, W. Shao, Zongping |
| author_sort | Xu, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Research on the efficient synthesis and application of nanostructured perovskite oxides is attracting intensive attention nowadays. Herein, a silver (Ag) nanoparticle decorated A-site deficient perovskite is prepared using a facile exsolution method and used as a cathode in dye-sensitized solar cells (DSSCs). The Ag nanoparticle modified (La0.8Sr0.2)0.95MnO3-δ composite (e-LSAM) prepared by the exsolution method displays exceptional activity for the electrocatalytic triiodide (I3-) reduction reaction (IRR) in DSSCs, which is much superior to that of the Ag/perovskite hybrids synthesized by physical mixing and impregnation methods due to the strong interfacial interaction and small Ag particle size. DSSC with this newly developed heteroelectrocatalyst shows a high photovoltaic efficiency of 12.4%, surpassing that of the expensive platinum (Pt)-based control cell (9.93%) with an enhancement factor of 25%, which is among the highest performances of Pt-free cathodes reported to date. Moreover, this new composite cathode shows a much superior IRR durability to Pt, indicating its great potential for replacing Pt. This study paves the way for the rational design of active and durable perovskite electrocatalysts for various energy conversion and storage systems. |
| first_indexed | 2025-11-14T11:37:53Z |
| format | Journal Article |
| id | curtin-20.500.11937-91953 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:53Z |
| publishDate | 2019 |
| publisher | ROYAL SOC CHEMISTRY |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-919532023-06-08T05:27:44Z Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles Xu, M. Wang, Wei Zhong, Yijun Xu, Xiaomin Wang, J. Zhou, W. Shao, Zongping Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science EFFICIENT COUNTER ELECTRODE OXYGEN REDUCTION HYDROGEN EVOLUTION RATIONAL DESIGN PERFORMANCE GRAPHENE OXIDE TEMPERATURE NANOCOMPOSITES CONDUCTIVITY Research on the efficient synthesis and application of nanostructured perovskite oxides is attracting intensive attention nowadays. Herein, a silver (Ag) nanoparticle decorated A-site deficient perovskite is prepared using a facile exsolution method and used as a cathode in dye-sensitized solar cells (DSSCs). The Ag nanoparticle modified (La0.8Sr0.2)0.95MnO3-δ composite (e-LSAM) prepared by the exsolution method displays exceptional activity for the electrocatalytic triiodide (I3-) reduction reaction (IRR) in DSSCs, which is much superior to that of the Ag/perovskite hybrids synthesized by physical mixing and impregnation methods due to the strong interfacial interaction and small Ag particle size. DSSC with this newly developed heteroelectrocatalyst shows a high photovoltaic efficiency of 12.4%, surpassing that of the expensive platinum (Pt)-based control cell (9.93%) with an enhancement factor of 25%, which is among the highest performances of Pt-free cathodes reported to date. Moreover, this new composite cathode shows a much superior IRR durability to Pt, indicating its great potential for replacing Pt. This study paves the way for the rational design of active and durable perovskite electrocatalysts for various energy conversion and storage systems. 2019 Journal Article http://hdl.handle.net/20.500.11937/91953 10.1039/c9ta05005a English http://purl.org/au-research/grants/arc/DP150104365 http://purl.org/au-research/grants/arc/DP160104835 ROYAL SOC CHEMISTRY restricted |
| spellingShingle | Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science EFFICIENT COUNTER ELECTRODE OXYGEN REDUCTION HYDROGEN EVOLUTION RATIONAL DESIGN PERFORMANCE GRAPHENE OXIDE TEMPERATURE NANOCOMPOSITES CONDUCTIVITY Xu, M. Wang, Wei Zhong, Yijun Xu, Xiaomin Wang, J. Zhou, W. Shao, Zongping Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles |
| title | Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles |
| title_full | Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles |
| title_fullStr | Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles |
| title_full_unstemmed | Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles |
| title_short | Enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles |
| title_sort | enhancing the triiodide reduction activity of a perovskite-based electrocatalyst for dye-sensitized solar cells through exsolved silver nanoparticles |
| topic | Science & Technology Physical Sciences Technology Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Materials Science EFFICIENT COUNTER ELECTRODE OXYGEN REDUCTION HYDROGEN EVOLUTION RATIONAL DESIGN PERFORMANCE GRAPHENE OXIDE TEMPERATURE NANOCOMPOSITES CONDUCTIVITY |
| url | http://purl.org/au-research/grants/arc/DP150104365 http://purl.org/au-research/grants/arc/DP150104365 http://hdl.handle.net/20.500.11937/91953 |