Journal Article10.1109/JPROC.2011.2156750
Hydrogen Production From Water Electrolysis: Current Status and Future Trends
Alfredo Ursúa,Luis M. Gandía,Pablo Sanchis +2 more
- 01 Feb 2012
- Vol. 100, Iss: 2, pp 410-426
1.3K
TL;DR: The possible configurations allowing the integration of water electrolysis units with renewable energy sources in both autonomous and grid-connected systems are presented and some relevant demonstration projects are commented.
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Abstract: This paper reviews water electrolysis technologies for hydrogen production and also surveys the state of the art of water electrolysis integration with renewable energies. First, attention is paid to the thermodynamic and electrochemical processes to better understand how electrolysis cells work and how they can be combined to build big electrolysis modules. The electrolysis process and the characteristics, advantages, drawbacks, and challenges of the three main existing electrolysis technologies, namely alkaline, polymer electrolyte membrane, and solid oxide electrolyte, are then discussed. Current manufacturers and the main features of commercially available electrolyzers are extensively reviewed. Finally, the possible configurations allowing the integration of water electrolysis units with renewable energy sources in both autonomous and grid-connected systems are presented and some relevant demonstration projects are commented.
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Citations
Ni alloy nanowires as high efficiency electrode materials for alkaline electrolysers
Fabrizio Ganci,Bernardo Patella,Emanuele Cannata,Valentino Cusumano,Giuseppe Aiello,Carmelo Sunseri,Philippe Mandin,Rosalinda Inguanta +7 more
TL;DR: The fabrication and characterization of nickel-alloy electrodes for alkaline electrolysers is reported in this paper, where three different alloys (NiCo, NiZn and NiW) at different composition were studied in order to determine the optimum condition.
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The effect of microscopic phenomena on the performance of iron-based oxygen carriers of chemical looping hydrogen production
TL;DR: In this article , the microscopic effects on the performance of the active catalytic system in the chemical looping process were investigated and the authors revealed new fundamental principles for the design of OC in CHs.
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A hybrid electrolyzer splits water at 0.8 V at room temperature
Sharon X. Weng,Xiaobo Chen +1 more
TL;DR: In this article, the authors demonstrate a new concept that successfully splits water into oxygen and hydrogen at a voltage as small as 0.8 V with earth-abundance catalysts.
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Analysis of the integrated system of electrolysis and methanation units for the production of synthetic natural gas (SNG)
TL;DR: In this paper, an analysis of the power-to-gas installation as an exemplary solution of a system storing excess electricity from renewable energy sources is presented, where the installation contains an integrated module of the electrolysis process, used for hydrogen production, hydrogen storage and a system for synthetic natural gas (SNG) production.
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Accurate evaluation of hydrogen crossover in water electrolysis systems for wetted membranes
SeungHwan Kim,Bao Tran Duy Nguyen,Hansol Ko,Mijeong Kim,Kihyun Kim,Sang Yong Nam,Jeong F. Kim +6 more
TL;DR: In this article, the authors investigated the pressure decay method as a simple, convenient, and low-cost method to characterize hydrogen crossover through wetted membranes for water electrolysis systems.
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