期刊
APPLIED SCIENCES-BASEL
卷 11, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/app112311363
关键词
hydrogen value chain; hydrogen storage methods; hydrogen production technologies; water electrolysis technologies; alkaline water electrolysis; proton-exchange membrane electrolysis; solid oxide electrolysis
类别
资金
- Fundacao para a Ciencia e a Tecnologia (FCT) [UIDB/50021/2020]
The growth in human activity has led to a critical rise in global energy consumption, mainly from fossil fuels that produce harmful byproducts. Renewable hydrogen shows promise as a replacement for fossil fuels, but reliable solutions for carbon-free production are needed. This study comprehensively reviews hydrogen production technologies, focusing on water splitting by green-electrolysis and suggests future development directions such as alternative electrolysis methods and the use of artificial intelligence in designing new systems.
Growing human activity has led to a critical rise in global energy consumption; since the current main sources of energy production are still fossil fuels, this is an industry linked to the generation of harmful byproducts that contribute to environmental deterioration and climate change. One pivotal element with the potential to take over fossil fuels as a global energy vector is renewable hydrogen; but, for this to happen, reliable solutions must be developed for its carbon-free production. The objective of this study was to perform a comprehensive review on several hydrogen production technologies, mainly focusing on water splitting by green-electrolysis, integrated on hydrogen's value chain. The review further deepened into three leading electrolysis methods, depending on the type of electrolyzer used-alkaline, proton-exchange membrane, and solid oxide-assessing their characteristics, advantages, and disadvantages. Based on the conclusions of this study, further developments in applications like the efficient production of renewable hydrogen will require the consideration of other types of electrolysis (like microbial cells), other sets of materials such as in anion-exchange membrane water electrolysis, and even the use of artificial intelligence and neural networks to help design, plan, and control the operation of these new types of systems.
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