Hydrogen generation from solid state NaBH4 by using FeCl3 catalyst for portable proton exchange membrane fuel cell applications |
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| Affiliation: | 1. Middle East Technical University, Chemical Engineering Department, Ankara, 06800, Turkey;2. Erdes Teknoloji Kimya Endüstriyel Tasar?m Kontrol ve D?? Ticaret Ltd. ?ti., Büyükesat Mahallesi Seyyah Sok. 9/6 G.O.P., Ankara, 06680, Turkey;1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, PR China;2. Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China;1. Consiglio Nazionale delle Ricerche – Istituto di Chimica dei Composti Organometallici (CNR-ICCOM), Via Madonna del Piano 10, Sesto Fiorentino, 50019, Italy;2. Università di Siena, Dipartimento di Biotecnologie, Chimica e Farmacia, Via Aldo Moro 2, Siena, 53100, Italy;3. Università di Firenze, Dipartimento di Chimica, Via della Lastruccia 3, Sesto Fiorentino, 50019, Italy;1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China;2. College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China;3. Hunan Corun New Energy Co., Ltd., Changsha, 410205, China;1. Department of Aerospace Engineering, School of Mechanical and Aerospace Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 305-338, Republic of Korea;2. Launcher Thermal & Aerodynamics Team, Launcher Technology Development Division, KSLV-II R&D Program Executive Office, Korea Aerospace Research Institute (KARI), 169-84 Gwahak-ro, Yuseong-gu, Daejeon 305-806, Republic of Korea |
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| Abstract: | Being a boron-based compound, sodium borohydride, NaBH4, is a convenient hydrogen storage material for applications like unmanned air vehicles. There are several concerns behind commercialization of hydrogen gas generator by NaBH4 hydrolysis systems. This study aims to contribute to the solution of the problems of NaBH4 hydrolysis system in three main ways. First, the usage of solid state NaBH4 enables to increase the durability and the gravimetric H2 storage capacity of the system in order to meet US DOE targets. Second, solid NaBH4 usage decreases the system's weight since it does not require a separate fuel storage tank, which is very important for portable, on demand applications. Finally, the system's cost is decreased by using an accessible and effective non-precious catalyst such as ferric chloride, FeCl3. The maximum hydrogen generation rate obtained was 2.6 L/min and the yield was 2 L H2/g NaBH4 with an efficiency of 76% at its most promising condition. Moreover, the novel solid NaBH4 hydrogen gas generator developed in the present work was integrated into a proton exchange membrane fuel cell and tested at the optimum operating conditions. |
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| Keywords: | Sodium borohydride Hydrogen production PEM fuel cell Portable applications Hydrolysis reactor |
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