Australian scientists have invented a technology for producing hydrogen through water electrolysis, which holds promise for generating clean fuel

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Australian scientists invent technology for producing hydrogen via water electrolysis, offering hope for clean fuel production. A report released by the University of New South Wales states that researchers at the university have developed a new type of electrode that can electrolyze water at low cost and high efficiency, potentially enabling the large-scale production of clean fuel – hydrogen. This technology uses a low-cost, specially coated foamy material that allows the oxygen bubbles produced by water electrolysis to escape rapidly, thereby improving the production efficiency. The relevant paper was published in the recent issue of British journal Nature Communications. 　　Researchers say this electrode is the most efficient oxygen-producing electrode yet developed in alkaline electrolytes. It uses nickel and iron as raw materials, resulting in low costs and easy production; it does not require precious rare metals as catalysts and electrode materials like other water electrolysis technologies. 　　During the process of electrolyzing water, water is broken down into hydrogen and oxygen under the influence of an electric current. Oxygen-evolving electrodes, with their low efficiency, high cost, and high power consumption, are one of the key technologies for the industrial production of hydrogen via water electrolysis. 　　The researchers used commercially available nickel foam and plated it with a highly active nickel-iron alloy catalyst to create the electrodes. The nickel foam material contains many micropores with a diameter of about 200 micrometers, which is roughly twice the diameter of human hair. The ultra-thin nickel-iron alloy coating also contains numerous micropores with a diameter of about 50 nanometers. Due to the micropores present in both the coating and the interior, the new type of electrode has a very large surface area, which facilitates the generation and escape of oxygen during the electrolysis process. Insufficient rapid escape of oxygen bubbles is a common problem that reduces electrode efficiency. The researchers say they will further study the underlying principles and optimize performance to help achieve low-cost hydrogen production at an earlier date. The combustion product of hydrogen is water; it does not produce carbon dioxide or other pollutants. It is a clean and efficient energy source. If it can be produced on a large scale at low cost, it will help meet the world’s growing energy needs while reducing pollution and curbing global warming. Disclaimer: This article represents only the author’s personal views and is not affiliated with Huanqiu.com. Given its originality, as well as the fact that the text and content presented in it were not created by this site, we make no warranties whatsoever regarding the accuracy, completeness, or timeliness of this article or any part of its content. Readers are advised to use it only for reference and to verify the relevant information on their own.