Integrating Metal Hydride-Based Hydrogen Storage Tanks With PEM Fuel Cell Stacks for Enhanced Energy Efficiency in Underwater Applications Berna Sezgin, Tayfur Ozturk, Inci Eroglu Energy Storage, 2026 This study presents a comprehensive modeling and integration approach for coupling metal hydride‐based hydrogen storage systems with PEM fuel cell stacks, specifically tailored for high‐demand underwater applications. The focus is on optimizing the hydrogen desorption process from LaNi 5 ‐based metal hydride tanks by utilizing waste heat from PEM fuel cells. A 360 kW PEM fuel cell system, comprising six 60 kW stacks, is designed, with hydrogen flow rate requirements calculated based on stack parameters and operating conditions. The effect of varying voltage, current density, and cell count on hydrogen consumption and waste heat generation is analyzed across five case scenarios. Results show that, for a single 60 kW PEM fuel cell stack, reducing the cell voltage from 0.60 to 0.50 V increases hydrogen demand from 3.82 to 4.57 kg/h, while fuel cell heat generation rises significantly from 78.1 to 98.9 kW, corresponding to an increase of over 30%. For the 360 kW MH–PEMFC integrated overall system operating at 0.60 V, a total hydrogen consumption of 22.9 kg/h is obtained, with a fuel cell efficiency of 43.4% and an overall system efficiency of 70.9%, and the thermal coupling ratio is 0.48. These results highlight the trade‐off between operating voltage, thermal load, and system efficiency in PEM fuel cell systems. To address the resulting thermal loads, a seawater‐compatible two‐stage heat exchanger configuration is proposed to manage the thermal needs of both hydrogen desorption and fuel cell cooling under underwater conditions. A complete process flow diagram is developed to illustrate the system's hydrogen, oxygen, heat, and water flows, emphasizing modularity, redundancy, and adaptability. The findings demonstrate that integrated heat recovery from fuel cells can effectively sustain hydrogen desorption while enhancing system reliability and efficiency in submarine energy storage applications.
COMBINATORIAL DEVELOPMENT OF LSF/rp-LSF/ScSZ COMPOSITE CATHODE FOR INTERMEDIATE TEMPERATURE SOLID OXIDE FUEL CELLS Proceedings of Whec 2022 23rd World Hydrogen Energy Conference Bridging Continents by H2, 2022
DEVELOPMENT OF LSF-LSM COMPOSITE CATHODES FOR IT-SOFC Proceedings of Whec 2022 23rd World Hydrogen Energy Conference Bridging Continents by H2, 2022
DEVELOPMENT OF HYDROGEN PURIFICATION MEMBRANE BASED ON Pd-Mn-Ag TERNARY SYSTEM Proceedings of Whec 2022 23rd World Hydrogen Energy Conference Bridging Continents by H2, 2022
A NEW CLASS OF AMORPHOUS/NANOCRYSTALLINE (La,Sr)CoO3 BASED CATHODES FOR IT-SOFCs Proceedings of Whec 2022 23rd World Hydrogen Energy Conference Bridging Continents by H2, 2022
Integrating Metal Hydride‐Based Hydrogen Storage Tanks With PEM Fuel Cell Stacks for Enhanced Energy Efficiency in Underwater Applications B Sezgin, T Ozturk, I Eroglu Energy Storage 8 (4), e70400 , 2026 2026
Editorial advances in materials for energy storage and conversion F Cuevas, T Öztürk 2025
ZnO-In 2 O 3 -SnO 2 THIN FILM TRANSPARENT HEATERS: TUNABLE ELECTROTHERMAL PROPERTIES THROUGH SUBSTRATE TEMPERATURE AND … H AKYILDIZ, HA CAN, B KIVRAK, T ÖZTÜRK Konya Journal of Engineering Sciences/Konya Mühendislik Bilimleri Dergisi 13 (1) , 2025 2025
Doped NaMnOx cathodes for Zn-MnO2 batteries for improved capacity and rechargeability Y Akbaş, NÖ Darıcıoğlu, T Öztürk Materials Research Bulletin 182, 113159 , 2025 2025
Modeling and design for metal hydride-based hydrogen storage systems in underwater PEMFC applications B Sezgin, T Ozturk, I Eroglu Materials Research Bulletin 182, 113139 , 2025 2025 Citations: 11
ZnO-In2O3-SnO2 THIN FILM TRANSPARENT HEATERS: TUNABLE ELECTROTHERMAL PROPERTIES THROUGH SUBSTRATE TEMPERATURE AND POSTGROWTH ANNEALING H Akyıldız, HA Can, B Kıvrak, T Ozturk Konya Journal of Engineering Sciences 13 (1), 25-43 , 2025 2025
ZnO-In2O3-SnO2 Thin Film Transparent Heaters: Tunable Electrothermal Properties Through Substrate Temperature and Postgrowth Annealing B Kıvrak, T Öztürk, H Akyildiz, HA Can Konya Mühendislik Bilimleri Dergisi (Online) , 2025 2025
Oxide coated nickel powder as support for platinum (0) nanoparticles: Magnetically separable catalysts for hydrogen generation from the hydrolysis of ammonia borane S Akbayrak, G Çakmak, T Öztürk, S Özkar Journal of Alloys and Compounds 1002, 175199 , 2024 2024 Citations: 14
Advanced diagnosis and early warning strategies on degradation and safety of lithium-ion batteries MK Aydinol, B Ulgut, KY Oh, T Ozturk Frontiers in Energy Research 12, 1441622 , 2024 2024 Citations: 1
Search for carbon additives in Co-free Ni (OH) 2 cathodes for NiMH batteries NÖ Darıcıoğlu, T Öztürk Journal of Energy Storage 90, 111850 , 2024 2024 Citations: 4
Thermal plasma synthesis of (La, Sr) CoO3-(La, Sr) 2CoO4 composite cathodes for intermediate temperature solid oxide fuel cells (IT-SOFC) HE Aysal, F Kılıç, G Çakmak, T Öztürk International Journal of Hydrogen Energy 51, 1477-1486 , 2024 2024 Citations: 7
Guest Editorial on Hydrogen separation and storage and power to gas options (WHEC-2022) T Öztürk, A Iulianelli, B Nastasi International Journal of Hydrogen Energy 51, 209-209 , 2024 2024 Citations: 1
Effect of deposition parameters on optical and electrical properties of ZnO–In2O3–SnO2 thin films HA Can, T Öztürk, H Akyıldız Materials Chemistry and Physics 296, 127256 , 2023 2023 Citations: 5
Development of MnO 2 Based Cathodes for Alkaline Batteries via Combinatorial Approach NÖ Darıcıoğlu, Y Akbaş, T Öztürk Journal of The Electrochemical Society 169 (12), 120529 , 2022 2022 Citations: 5
Guest editorial for “Energy storage and conversion: Materials to applications” A Aliyev, T Öztürk International Journal of Energy Research 46 (15), 21660-21660 , 2022 2022
A novel air‐stable O3‐type layered oxide cathode material with low Ni content for sodium‐ion batteries Ş Patat, A Şahin, Y Taş, F Şanlı, Y Yılmaz, T Öztürk International Journal of Energy Research 46 (15), 22025-22037 , 2022 2022 Citations: 14
A combinatorial study on ZnO-In2O3-SnO2 system: The effects of different postgrowth annealing conditions on optical and electrical properties HA Can, T Öztürk, H Akyıldız Journal of Alloys and Compounds 924, 166591 , 2022 2022 Citations: 3
Hydrogen energy systems for underwater applications B Sezgin, Y Devrim, T Ozturk, I Eroglu International Journal of Hydrogen Energy 47 (45), 19780-19796 , 2022 2022 Citations: 71
Development of Hydrogen Purificatıon Membrane Based on Pd-Mn-Ag Ternary System MM Köse, F Pişkin, T Öztürk International Association for Hydrogen Energy, IAHE , 2022 2022
Factors affecting the design of hydrogen separators based on dense metallic membranes F Pişkin, H Akyıldız, T Öztürk National Laboratory Astana , 2022 2022
MOST CITED SCHOLAR PUBLICATIONS
Continuous synthesis of graphite with tunable interlayer distance G Çakmak, T Öztürk Diamond and Related Materials 96, 134-139 , 2019 2019 Citations: 85
Effects of additives on mechanical milling and hydrogenation of magnesium powders M Güvendiren, E Baybörü, T Öztürk International journal of hydrogen energy 29 (5), 491-496 , 2004 2004 Citations: 75
Hydrogen energy systems for underwater applications B Sezgin, Y Devrim, T Ozturk, I Eroglu International Journal of Hydrogen Energy 47 (45), 19780-19796 , 2022 2022 Citations: 71
Synthesis of FeTi from mixed oxide precursors S Tan, T Örs, MK Aydınol, T Öztürk, İ Karakaya Journal of Alloys and Compounds 475 (1-2), 368-372 , 2009 2009 Citations: 70
Control of macrostructure in deformation processing of metal/metal laminates Ö Yazar, T Ediz, T Öztürk Acta materialia 53 (2), 375-381 , 2005 2005 Citations: 70
Combinatorial screening of Pd-Ag-Ni membranes for hydrogen separation F Pişkin, T Öztürk Journal of Membrane Science 524, 631-636 , 2017 2017 Citations: 58
Rhodium (0), Ruthenium (0) and Palladium (0) nanoparticles supported on carbon-coated iron: Magnetically isolable and reusable catalysts for hydrolytic dehydrogenation of … S Akbayrak, G Çakmak, T Öztürk, S Özkar International Journal of Hydrogen Energy 46 (25), 13548-13560 , 2021 2021 Citations: 53
The processing of Mg–Ti for hydrogen storage; mechanical milling and plasma synthesis G Çakmak, Z Károly, I Mohai, T Öztürk, J Szépvölgyi International journal of hydrogen energy 35 (19), 10412-10418 , 2010 2010 Citations: 47
Hydrogen absorption in magnesium based crystalline thin films H Akyıldız, M Özenbaş, T Öztürk International journal of hydrogen energy 31 (10), 1379-1383 , 2006 2006 Citations: 46
Deformation and Recrystallization Textures in Cross-Rolled Sheets of Copper and Alpha-Brass T Ozturk Scripta Metallurgica 22 (10), 1611-1616 , 1988 1988 Citations: 41
Solution processed aluminum-doped ZnO thin films for transparent heater applications B Tönbül, HA Can, T Öztürk, H Akyıldız Materials Science in Semiconductor Processing 127, 105735 , 2021 2021 Citations: 36
Direct synthesis of Mg–Ni compounds from their oxides S Tan, K Aydınol, T Öztürk, İ Karakaya Journal of alloys and compounds 504 (1), 134-140 , 2010 2010 Citations: 34
Thickness effects in hydrogen sorption of Mg/Pd thin films AG Gharavi, H Akyıldız, T Öztürk Journal of alloys and compounds 580, S175-S178 , 2013 2013 Citations: 31
Strain partitioning and plastic flow in some metal/metal laminates T Öztürk, J Mirmesdagh, T Ediz Materials Science and Engineering: A 175 (1-2), 125-129 , 1994 1994 Citations: 31
Activation behavior of an AB2 type metal hydride alloy for NiMH batteries S Tan, Y Shen, EO Şahin, D Noréus, T Öztürk International Journal of Hydrogen Energy 41 (23), 9948-9953 , 2016 2016 Citations: 29
Ti modified Pd–Ag membranes for hydrogen separation F Pişkin, H Akyıldız, T Öztürk International Journal of Hydrogen Energy 40 (24), 7553-7558 , 2015 2015 Citations: 28
The Deformation of Cu-W Laminates T Ozturk, WJ Poole, JD Embury Materials Science And Engineering A-Structural Materials Properties … , 1991 1991 Citations: 28
Hydrogen sorption in crystalline and amorphous Mg–Cu thin films H Akyıldız, T Öztürk Journal of Alloys and Compounds 492 (1-2), 745-750 , 2010 2010 Citations: 26
Combinatorial search for hydrogen storage alloys: Mg–Ni and Mg–Ni–Ti R Ölmez, G Çakmak, T Öztürk International journal of hydrogen energy 35 (21), 11957-11965 , 2010 2010 Citations: 25
Combinatorial development of nanocrystalline/amorphous (La, Sr) CoO3-(La, Sr) 2CoO4 composite cathodes for IT-SOFCs D Sari, F Piskin, ZC Torunoglu, B Yasar, YE Kalay, T Ozturk Solid State Ionics 326, 124-130 , 2018 2018 Citations: 24