A Millimeter Scale Reactor Integrated PEM Fuel Cell Energy System with an On-Board Hydrogen Production, Storage and Regulation Unit for Autonomous Small Scale Applications

Arvind Balakrishnan; Claas Mueller; H. Reinecke

doi:10.4028/www.scientific.net/AST.93.131

Paper Titles

Activated Carbon Fibre Monoliths for Hydrogen Storage
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Hydrogenation of Nanocrystalline Mg₂Ni Alloy Prepared by High Energy Ball-Milling Followed by Equal-Channel Angular Pressing or Cold Rolling
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Atomistic Models of Long-Term Hydrogen Diffusion in Metals
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Hydrogen Technologies and Applications: Safety
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A Millimeter Scale Reactor Integrated PEM Fuel Cell Energy System with an On-Board Hydrogen Production, Storage and Regulation Unit for Autonomous Small Scale Applications
p.131

Study of New Active Materials for Rechargeable Sodium-Ion Batteries
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Relating Electrochemistry of New Organic Materials for Batteries and Fundamental Understanding through DFT Calculations
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Hydrothermal Synthesis of Corn Cob-Like LiFePO₄/C as High Performance Cathode Material for Lithium Ion Batteries
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Detecting Aging Phenomena in Commercial Cathodes for Li-Ion Batteries Using High Resolution Computed Tomography
p.158

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 93A Millimeter Scale Reactor Integrated PEM Fuel...

A Millimeter Scale Reactor Integrated PEM Fuel Cell Energy System with an On-Board Hydrogen Production, Storage and Regulation Unit for Autonomous Small Scale Applications

Abstract:

We present a millimeter scale reactor integrated PEM fuel cell energy source with an onboard hydrogen production reactor (realized by alkaline chemical hydride), and passive hydrogen buffering unit (realized by metal hydride) of hydrogen. A stacked system of reactor-hydrogen buffer-PEM fuel cell is demonstrated. The system is driven by the hydrolysis of the alkaline chemical hydride (NaOH+NaBH₄) in the presence of micro porous catalyst layer (platinum catalyst (Ni-Pt)). The produced hydrogen gas from the reactor is buffered through the hydrogen buffer (Palladium metal hydride) and gets distributed (due to the pressure difference) onto the anode of the PEM fuel cell. The operational behaviour of the complete system is investigated with the hydrogen produced from the alkaline chemical hydride and pure hydrogen gas. Long term voltage measurements under a defined electrical load of the alkaline chemical hydride driven system was measured. The increase in time for the hydrogen production observed in the long term voltage measurement is anticipated to the degradation of the Ni-Pt catalyst. The system is “self-buffering” in nature so any change in electrical load can be handled during system operation.