Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area Effects
Efficient hydrogen storage is critical for advancing hydrogen-based technologies. This study investigates the effects of pressure and surface area on hydrogen storage in three carbon-based materials: graphite, graphene oxide, and reduced graphene oxide. Hydrogen adsorption–desorption experiments und...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Hydrogen |
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| Online Access: | https://www.mdpi.com/2673-4141/6/2/22 |
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| author | Ali Altuntepe Selahattin Çelik Recep Zan |
| author_facet | Ali Altuntepe Selahattin Çelik Recep Zan |
| author_sort | Ali Altuntepe |
| collection | DOAJ |
| description | Efficient hydrogen storage is critical for advancing hydrogen-based technologies. This study investigates the effects of pressure and surface area on hydrogen storage in three carbon-based materials: graphite, graphene oxide, and reduced graphene oxide. Hydrogen adsorption–desorption experiments under pressures ranging from 1 to 9 bar revealed nonlinear storage capacity responses, with optimal performance at around 5 bar. The specific surface area plays a pivotal role, with reduced graphene oxide and exhibiting a surface area of 70.31 m<sup>2</sup>/g, outperforming graphene oxide (33.75 m<sup>2</sup>/g) and graphite (7.27 m<sup>2</sup>/g). Reduced graphene oxide achieved the highest hydrogen storage capacity, with 768 sccm and a 3 wt.% increase over the other materials. In assessing proton-exchange fuel cell performance, this study found that increased hydrogen storage correlates with enhanced power density, with reduced graphene oxide reaching a maximum of 0.082 W/cm<sup>2</sup>, compared to 0.071 W/cm<sup>2</sup> for graphite and 0.017 W/cm<sup>2</sup> for graphene oxide. However, desorption rates impose temporal constraints on fuel cell operation. These findings enhance our understanding of pressure–surface interactions and underscore the balance between hydrogen storage capacity, surface area, and practical performance in carbon-based materials, offering valuable insights for hydrogen storage and fuel cell applications. |
| format | Article |
| id | doaj-art-9912ea77d7b14d818fd9e62986b021d0 |
| institution | OA Journals |
| issn | 2673-4141 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Hydrogen |
| spelling | doaj-art-9912ea77d7b14d818fd9e62986b021d02025-08-20T02:21:02ZengMDPI AGHydrogen2673-41412025-03-01622210.3390/hydrogen6020022Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area EffectsAli Altuntepe0Selahattin Çelik1Recep Zan2Optical Excellence Application and Research Center, Sivas University of Science and Technology, 58000 Sivas, TürkiyeDepartment of Mechanical Engineering, Ankara Yıldırım Beyazıt University, 06760 Ankara, TürkiyeDepartment of Physics, Niğde Ömer Halisdemir University, 51000 Niğde, TürkiyeEfficient hydrogen storage is critical for advancing hydrogen-based technologies. This study investigates the effects of pressure and surface area on hydrogen storage in three carbon-based materials: graphite, graphene oxide, and reduced graphene oxide. Hydrogen adsorption–desorption experiments under pressures ranging from 1 to 9 bar revealed nonlinear storage capacity responses, with optimal performance at around 5 bar. The specific surface area plays a pivotal role, with reduced graphene oxide and exhibiting a surface area of 70.31 m<sup>2</sup>/g, outperforming graphene oxide (33.75 m<sup>2</sup>/g) and graphite (7.27 m<sup>2</sup>/g). Reduced graphene oxide achieved the highest hydrogen storage capacity, with 768 sccm and a 3 wt.% increase over the other materials. In assessing proton-exchange fuel cell performance, this study found that increased hydrogen storage correlates with enhanced power density, with reduced graphene oxide reaching a maximum of 0.082 W/cm<sup>2</sup>, compared to 0.071 W/cm<sup>2</sup> for graphite and 0.017 W/cm<sup>2</sup> for graphene oxide. However, desorption rates impose temporal constraints on fuel cell operation. These findings enhance our understanding of pressure–surface interactions and underscore the balance between hydrogen storage capacity, surface area, and practical performance in carbon-based materials, offering valuable insights for hydrogen storage and fuel cell applications.https://www.mdpi.com/2673-4141/6/2/22hydrogen storagegraphiteGOrGOPEM fuel cellspressure |
| spellingShingle | Ali Altuntepe Selahattin Çelik Recep Zan Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area Effects Hydrogen hydrogen storage graphite GO rGO PEM fuel cells pressure |
| title | Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area Effects |
| title_full | Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area Effects |
| title_fullStr | Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area Effects |
| title_full_unstemmed | Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area Effects |
| title_short | Optimizing Hydrogen Storage and Fuel Cell Performance Using Carbon-Based Materials: Insights into Pressure and Surface Area Effects |
| title_sort | optimizing hydrogen storage and fuel cell performance using carbon based materials insights into pressure and surface area effects |
| topic | hydrogen storage graphite GO rGO PEM fuel cells pressure |
| url | https://www.mdpi.com/2673-4141/6/2/22 |
| work_keys_str_mv | AT alialtuntepe optimizinghydrogenstorageandfuelcellperformanceusingcarbonbasedmaterialsinsightsintopressureandsurfaceareaeffects AT selahattincelik optimizinghydrogenstorageandfuelcellperformanceusingcarbonbasedmaterialsinsightsintopressureandsurfaceareaeffects AT recepzan optimizinghydrogenstorageandfuelcellperformanceusingcarbonbasedmaterialsinsightsintopressureandsurfaceareaeffects |