Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodes
This study focuses on enhancing the performance of TiNb2O7 (TNO) anodes in lithium-ion batteries (LIBs) through a co-modification strategy that combines graphene compositing with morphological control using Pluronic F127. TNO is a promising anode material due to its high theoretical capacity, rapid...
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025013246 |
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| author | Amirreza Shahbazian Nafiseh Hassanzadeh |
| author_facet | Amirreza Shahbazian Nafiseh Hassanzadeh |
| author_sort | Amirreza Shahbazian |
| collection | DOAJ |
| description | This study focuses on enhancing the performance of TiNb2O7 (TNO) anodes in lithium-ion batteries (LIBs) through a co-modification strategy that combines graphene compositing with morphological control using Pluronic F127. TNO is a promising anode material due to its high theoretical capacity, rapid Li+ intercalation, extended lifecycle, and high safety, but it inherently suffers from low electronic and ionic conductivity. To address this limitation, TNO composites were synthesized using a one-pot solvothermal method with three common graphene derivatives: graphene oxide (GO), reduced graphene oxide (rGO), and electrochemically exfoliated graphene (EEG). Among these, the rGO-based composite demonstrated superior performance due to its balanced conductivity and dispersion properties, achieving an initial discharge capacity of 317 mAh/g at 1C compared to 150 mAh/g for pure TNO. Incorporating Pluronic F127 into the rGO composite further enhanced performance, delivering an initial discharge capacity of 350 mAh/g at 1C and retaining 85 % capacity after 1000 cycles. Additionally, this optimized sample achieved a high discharge capacity of 130 mAh/g at 20C. Electrochemical impedance spectroscopy confirmed reduced charge transfer resistance in the rGO-F127-modified TNO composite, emphasizing the synergistic effects of this dual modification approach. These findings provide a promising pathway for developing high-performance LIB anodes with improved conductivity, stability, and rate capability. |
| format | Article |
| id | doaj-art-46edf77451a543c3a1666db25d6f3cf5 |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-46edf77451a543c3a1666db25d6f3cf52025-08-20T03:49:35ZengElsevierResults in Engineering2590-12302025-06-012610525410.1016/j.rineng.2025.105254Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodesAmirreza Shahbazian0Nafiseh Hassanzadeh1Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, IranCorresponding author.; Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, IranThis study focuses on enhancing the performance of TiNb2O7 (TNO) anodes in lithium-ion batteries (LIBs) through a co-modification strategy that combines graphene compositing with morphological control using Pluronic F127. TNO is a promising anode material due to its high theoretical capacity, rapid Li+ intercalation, extended lifecycle, and high safety, but it inherently suffers from low electronic and ionic conductivity. To address this limitation, TNO composites were synthesized using a one-pot solvothermal method with three common graphene derivatives: graphene oxide (GO), reduced graphene oxide (rGO), and electrochemically exfoliated graphene (EEG). Among these, the rGO-based composite demonstrated superior performance due to its balanced conductivity and dispersion properties, achieving an initial discharge capacity of 317 mAh/g at 1C compared to 150 mAh/g for pure TNO. Incorporating Pluronic F127 into the rGO composite further enhanced performance, delivering an initial discharge capacity of 350 mAh/g at 1C and retaining 85 % capacity after 1000 cycles. Additionally, this optimized sample achieved a high discharge capacity of 130 mAh/g at 20C. Electrochemical impedance spectroscopy confirmed reduced charge transfer resistance in the rGO-F127-modified TNO composite, emphasizing the synergistic effects of this dual modification approach. These findings provide a promising pathway for developing high-performance LIB anodes with improved conductivity, stability, and rate capability.http://www.sciencedirect.com/science/article/pii/S2590123025013246TiNb2O7Morphology controlPluronic F127Graphene derivativesCo-modification |
| spellingShingle | Amirreza Shahbazian Nafiseh Hassanzadeh Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodes Results in Engineering TiNb2O7 Morphology control Pluronic F127 Graphene derivatives Co-modification |
| title | Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodes |
| title_full | Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodes |
| title_fullStr | Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodes |
| title_full_unstemmed | Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodes |
| title_short | Co-Modification of TiNb2O7 with graphene derivatives and Pluronic F127 for enhanced lithium-ion battery anodes |
| title_sort | co modification of tinb2o7 with graphene derivatives and pluronic f127 for enhanced lithium ion battery anodes |
| topic | TiNb2O7 Morphology control Pluronic F127 Graphene derivatives Co-modification |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025013246 |
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