Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications
This study explores the effect of graphene oxide (GO) incorporation on the structural and electrochemical properties of alginate–poly(vinyl alcohol) (PVA) polymer electrolytes doped with ammonium nitrate (NH₄NO₃) for supercapacitor applications. FTIR analysis revealed specific molecular interact...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier Ltd
2025
|
| Subjects: | |
| Online Access: | https://umpir.ump.edu.my/id/eprint/45204/ |
| _version_ | 1848827352877891584 |
|---|---|
| author | Nurfatin Nabilah, Abdul Hafidz Nuraziliana, Muhd Ghazali Norfatihah, Mazuki Diantoro, M. Nagao, Yuki Ahmad Salihin, Samsudin |
| author_facet | Nurfatin Nabilah, Abdul Hafidz Nuraziliana, Muhd Ghazali Norfatihah, Mazuki Diantoro, M. Nagao, Yuki Ahmad Salihin, Samsudin |
| author_sort | Nurfatin Nabilah, Abdul Hafidz |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | This study explores the effect of graphene oxide (GO) incorporation on the structural and electrochemical
properties of alginate–poly(vinyl alcohol) (PVA) polymer electrolytes doped with ammonium nitrate (NH₄NO₃)
for supercapacitor applications. FTIR analysis revealed specific molecular interactions between graphene oxide
(GO) and the polymer host, while XRD results confirmed the enhanced amorphous nature of the composite. At 2
wt.% GO loading, the system exhibited peak ionic conductivity of 1.07 × 10-3 S/cm at room temperature, with a high ionic transference number (tₙ ≈ 0.98) and an extended electrochemical stability window of 2.85 V. Symmetric supercapacitors fabricated with these electrolytes achieved a specific capacitance of 240.78 F/g, an energy density of 131 Wh /kg, and long-term cycling stability up to 10,000 cycles. These results demonstrate that GO-induced structural modulation significantly enhances proton transport and electrochemical performance, offering a promising biopolymer-based platform for next-generation energy storage devices. |
| first_indexed | 2025-11-15T03:59:21Z |
| format | Article |
| id | ump-45204 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T03:59:21Z |
| publishDate | 2025 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-452042025-07-30T04:24:05Z https://umpir.ump.edu.my/id/eprint/45204/ Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications Nurfatin Nabilah, Abdul Hafidz Nuraziliana, Muhd Ghazali Norfatihah, Mazuki Diantoro, M. Nagao, Yuki Ahmad Salihin, Samsudin Q Science (General) TP Chemical technology This study explores the effect of graphene oxide (GO) incorporation on the structural and electrochemical properties of alginate–poly(vinyl alcohol) (PVA) polymer electrolytes doped with ammonium nitrate (NH₄NO₃) for supercapacitor applications. FTIR analysis revealed specific molecular interactions between graphene oxide (GO) and the polymer host, while XRD results confirmed the enhanced amorphous nature of the composite. At 2 wt.% GO loading, the system exhibited peak ionic conductivity of 1.07 × 10-3 S/cm at room temperature, with a high ionic transference number (tₙ ≈ 0.98) and an extended electrochemical stability window of 2.85 V. Symmetric supercapacitors fabricated with these electrolytes achieved a specific capacitance of 240.78 F/g, an energy density of 131 Wh /kg, and long-term cycling stability up to 10,000 cycles. These results demonstrate that GO-induced structural modulation significantly enhances proton transport and electrochemical performance, offering a promising biopolymer-based platform for next-generation energy storage devices. Elsevier Ltd 2025 Article PeerReviewed pdf en https://umpir.ump.edu.my/id/eprint/45204/1/MANUSCRIPT.pdf Nurfatin Nabilah, Abdul Hafidz and Nuraziliana, Muhd Ghazali and Norfatihah, Mazuki and Diantoro, M. and Nagao, Yuki and Ahmad Salihin, Samsudin (2025) Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications. Solid State Ionics, 429 (116956). pp. 1-16. ISSN 0167-2738. (Published) https://doi.org/10.1016/j.ssi.2025.116956 https://doi.org/10.1016/j.ssi.2025.116956 https://doi.org/10.1016/j.ssi.2025.116956 |
| spellingShingle | Q Science (General) TP Chemical technology Nurfatin Nabilah, Abdul Hafidz Nuraziliana, Muhd Ghazali Norfatihah, Mazuki Diantoro, M. Nagao, Yuki Ahmad Salihin, Samsudin Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications |
| title | Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications |
| title_full | Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications |
| title_fullStr | Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications |
| title_full_unstemmed | Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications |
| title_short | Graphene oxide-enhanced alginate-PVA biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications |
| title_sort | graphene oxide-enhanced alginate-pva biopolymer electrolytes with improved proton conductivity and electrochemical stability for supercapacitor applications |
| topic | Q Science (General) TP Chemical technology |
| url | https://umpir.ump.edu.my/id/eprint/45204/ https://umpir.ump.edu.my/id/eprint/45204/ https://umpir.ump.edu.my/id/eprint/45204/ |