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<p>This work introduces a sustainable electricity generation system driven by green hydrogen, produced from aluminum and water. The system consists of a hydrogen batch reactor, a buffer tank, a booster, a compressor, a storage tank and a proton exchange membrane fuel cell (PEMFC) stack, mounted on a car trailer for compacity and mobility. The Alkaline Aqueous Redox Reaction of Aluminum (AARRA) allows for the production of H<sub>2</sub> to supply the PEMFC stack. Since residual aluminum from a well-established recycling chain, seawater or degraded water could be utilized, the system is expected to be fully sustainable. A prototype was built in the laboratory and system characterization was carried out considering the hydrogen production, storage, and power generation with the PEMFC stack that uses the green hydrogen generated in the reactor as fuel. The prototype main components were built with AISI 316 stainless-steel to prevent the corrosion promoted by the alkaline solution and hydrogen embrittlement, guaranteeing the system durability. The results show that the system was capable of generating up to 20.5&#xa0;g of hydrogen in each batch, corresponding to a hydrogen yield of 81% when compared to the stoichiometric value. Experimental power and polarization curves characterizing the operation of a 5-kW Horizon PEMFC stack were obtained, which showed good qualitative and quantitative agreement with the nominal curves provided by the fuel cell manufacturer. The produced H<sub>2</sub> had the necessary purity to supply the PEMFC stack up to 90% of its maximum nominal power with no need of extra energy consumption for H<sub>2</sub> purification, which is an advantage in comparison to other green H<sub>2</sub> production methods, such as electrolysis that requires extra-energy consumption for H<sub>2</sub> dehumidification. A prototype of an electric vehicle (EV) range extender (REX) was built with the proposed system and tested, showing that the EV nominal range was increased by 16%, accounting for 61.5&#xa0;km of vehicle autonomy. Hence, possible future direct applications include electric vehicles, all electric ships and stationery distributed power generation.</p>

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Development and Characterization of a Green Hydrogen Driven Sustainable Electricity Generation System

  • 期刊论文

  • 发表日期：

    2026年2月24日

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  • J. V. C. Vargas,
  • H. P. Guerra,
  • A. M. Silveira,
  • D. M. Taher,
  • C. H. Matiolo,
  • L. S. Martins,
  • S. H. Och,
  • D. B. Pitz,
  • A. B. Mariano,
  • L. Cardozo-Filho,
  • G. S. Venter,
  • J. C. Ordonez

摘要

This work introduces a sustainable electricity generation system driven by green hydrogen, produced from aluminum and water. The system consists of a hydrogen batch reactor, a buffer tank, a booster, a compressor, a storage tank and a proton exchange membrane fuel cell (PEMFC) stack, mounted on a car trailer for compacity and mobility. The Alkaline Aqueous Redox Reaction of Aluminum (AARRA) allows for the production of H2 to supply the PEMFC stack. Since residual aluminum from a well-established recycling chain, seawater or degraded water could be utilized, the system is expected to be fully sustainable. A prototype was built in the laboratory and system characterization was carried out considering the hydrogen production, storage, and power generation with the PEMFC stack that uses the green hydrogen generated in the reactor as fuel. The prototype main components were built with AISI 316 stainless-steel to prevent the corrosion promoted by the alkaline solution and hydrogen embrittlement, guaranteeing the system durability. The results show that the system was capable of generating up to 20.5 g of hydrogen in each batch, corresponding to a hydrogen yield of 81% when compared to the stoichiometric value. Experimental power and polarization curves characterizing the operation of a 5-kW Horizon PEMFC stack were obtained, which showed good qualitative and quantitative agreement with the nominal curves provided by the fuel cell manufacturer. The produced H2 had the necessary purity to supply the PEMFC stack up to 90% of its maximum nominal power with no need of extra energy consumption for H2 purification, which is an advantage in comparison to other green H2 production methods, such as electrolysis that requires extra-energy consumption for H2 dehumidification. A prototype of an electric vehicle (EV) range extender (REX) was built with the proposed system and tested, showing that the EV nominal range was increased by 16%, accounting for 61.5 km of vehicle autonomy. Hence, possible future direct applications include electric vehicles, all electric ships and stationery distributed power generation.