The principles of Hydrogen synthesis and a manufacturing model - Review

Document Type : Review Article

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Department of Chemistry, Faculty of Science, Suez University, Suez, Egypt.

Abstract

This review discusses the potential of hydrogen as a sustainable fuel source in the context of the global search for the perfect fuel that emits no carbon dioxide. We will illustrate the various hydrogen types and highlight their differences. Three types of hydrogen synthesis are described. Grey and blue hydrogen, which are obtained from natural gas through steam methane reforming, and green hydrogen, which is the focus of our review and is obtained from water electrolysis, We will examine the cells used in the process of electrolysis from the inside out, as well as the different types of them, how they work and their efficiencies, along with the material that electrodes are made of. A real-life model of several steps describes how it’s done in the manufacturing field and covers the water treatment step, of which there are two types: seawater desalination and raw water treatment, both of which are necessary steps to be done to the water used before passing it through the cell. The review also describes a 2016 study that measured solar-to-hydrogen efficiency over two days, demonstrating the potential for using solar power to produce hydrogen. The article concludes that hydrogen is a promising solution for clean energy and that existing facilities can be altered to produce "green" hydrogen. Additionally, the use of renewable energy sources like wind and solar power can make the manufacturing process even cleaner.

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