High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 Nanocomposites
Hybrid asymmetric supercapacitors using distinct cathode/anode materials offer enhanced energy density by expanding operational potential windows compared to symmetric configurations. In this work rGO/α-Fe₂O₃ and rGO/TiO₂ nanocomposites were synthesized via hydrothermal method for hybrid asymmetric...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Iran University of Science & Technology
2025-03-01
|
| Series: | Iranian Journal of Materials Science and Engineering |
| Subjects: | |
| Online Access: | http://ijmse.iust.ac.ir/article-1-3791-en.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849761096893726720 |
|---|---|
| author | Zeinab Abbasali KarajAbad Adrine Malek Khachatourian Mohammad Golmohammad Ali Nemati |
| author_facet | Zeinab Abbasali KarajAbad Adrine Malek Khachatourian Mohammad Golmohammad Ali Nemati |
| author_sort | Zeinab Abbasali KarajAbad |
| collection | DOAJ |
| description | Hybrid asymmetric supercapacitors using distinct cathode/anode materials offer enhanced energy density by expanding operational potential windows compared to symmetric configurations. In this work rGO/α-Fe₂O₃ and rGO/TiO₂ nanocomposites were synthesized via hydrothermal method for hybrid asymmetric supercapacitors applications. Field emission scanning electron microscope (FESEM) revealed uniform distribution of spherical α-Fe₂O₃ and TiO₂ nanoparticles on rGO sheets. The X-ray diffractometry (XRD) analysis confirmed the presence of the hematite and anatase in the rGO/α-Fe2O3 and rGO/TiO2 nanocomposites, respectively. Additionally, in the XRD spectra of both nanocomposites, a broad peak corresponding to the (002) crystalline planes of rGO was observed. Electrochemical testing showed specific capacities of 130 F/g (rGO/α-Fe₂O₃) and 253 F/g (rGO/TiO₂) at 5 mV/s in 1M KOH. The assembled hybrid asymmetric supercapacitors (rGO/α-Fe₂O₃//rGO/TiO₂) achieved a 1.6 V operational potential window. Power density and energy density of 1066 W kg-1 and 9.7 Wh kg-1 were achieved at a current density of 1 A/g, respectively. |
| format | Article |
| id | doaj-art-183ee9f31223401abea0beec6f46e896 |
| institution | DOAJ |
| issn | 1735-0808 2383-3882 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Iran University of Science & Technology |
| record_format | Article |
| series | Iranian Journal of Materials Science and Engineering |
| spelling | doaj-art-183ee9f31223401abea0beec6f46e8962025-08-20T03:06:09ZengIran University of Science & TechnologyIranian Journal of Materials Science and Engineering1735-08082383-38822025-03-0122199106High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 NanocompositesZeinab Abbasali KarajAbad0Adrine Malek Khachatourian1Mohammad Golmohammad2Ali Nemati3 Sharif University of Technology Sharif University of Technology Niroo Research Institute (NRI) Sharif University of Technology Hybrid asymmetric supercapacitors using distinct cathode/anode materials offer enhanced energy density by expanding operational potential windows compared to symmetric configurations. In this work rGO/α-Fe₂O₃ and rGO/TiO₂ nanocomposites were synthesized via hydrothermal method for hybrid asymmetric supercapacitors applications. Field emission scanning electron microscope (FESEM) revealed uniform distribution of spherical α-Fe₂O₃ and TiO₂ nanoparticles on rGO sheets. The X-ray diffractometry (XRD) analysis confirmed the presence of the hematite and anatase in the rGO/α-Fe2O3 and rGO/TiO2 nanocomposites, respectively. Additionally, in the XRD spectra of both nanocomposites, a broad peak corresponding to the (002) crystalline planes of rGO was observed. Electrochemical testing showed specific capacities of 130 F/g (rGO/α-Fe₂O₃) and 253 F/g (rGO/TiO₂) at 5 mV/s in 1M KOH. The assembled hybrid asymmetric supercapacitors (rGO/α-Fe₂O₃//rGO/TiO₂) achieved a 1.6 V operational potential window. Power density and energy density of 1066 W kg-1 and 9.7 Wh kg-1 were achieved at a current density of 1 A/g, respectively.http://ijmse.iust.ac.ir/article-1-3791-en.pdfhybrid asymmetric supercapacitorgraphene oxidergo/α-fe2o3rgo/tio2nanocomposite |
| spellingShingle | Zeinab Abbasali KarajAbad Adrine Malek Khachatourian Mohammad Golmohammad Ali Nemati High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 Nanocomposites Iranian Journal of Materials Science and Engineering hybrid asymmetric supercapacitor graphene oxide rgo/α-fe2o3 rgo/tio2 nanocomposite |
| title | High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 Nanocomposites |
| title_full | High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 Nanocomposites |
| title_fullStr | High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 Nanocomposites |
| title_full_unstemmed | High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 Nanocomposites |
| title_short | High-Performance Hybrid Asymmetric Supercapacitors with rGO/α-Fe2O3 and rGO/TiO2 Nanocomposites |
| title_sort | high performance hybrid asymmetric supercapacitors with rgo α fe2o3 and rgo tio2 nanocomposites |
| topic | hybrid asymmetric supercapacitor graphene oxide rgo/α-fe2o3 rgo/tio2 nanocomposite |
| url | http://ijmse.iust.ac.ir/article-1-3791-en.pdf |
| work_keys_str_mv | AT zeinababbasalikarajabad highperformancehybridasymmetricsupercapacitorswithrgoafe2o3andrgotio2nanocomposites AT adrinemalekkhachatourian highperformancehybridasymmetricsupercapacitorswithrgoafe2o3andrgotio2nanocomposites AT mohammadgolmohammad highperformancehybridasymmetricsupercapacitorswithrgoafe2o3andrgotio2nanocomposites AT alinemati highperformancehybridasymmetricsupercapacitorswithrgoafe2o3andrgotio2nanocomposites |