South Korean team develops new environmentally friendly hydrogen preparation technology

The Korea Science and Technology Research Institute released a news that the research center of the fuel cell of the hospital developed a new technology for the preparation of environmentally friendly hydrogen. The research results were published in the International Academic Publication "Applied Catalysis B: Environmental".

As an important solution to global climate change, countries around the world are paying more and more attention to hydrogen fuel vehicles. At present, most of the hydrogen fuel is produced using natural gas and other fossil fuels and has a high degree of pollution. The existing process technology is to physically coat the powder. In this process, a large amount of catalyst (1 to 5 mg/cm<2> ) is used, and a protective coating must be made. The research group developed an electrode technology that can coat cerium oxide in a porous metal support through an electrolyte. This technology has a strong electrochemical hydrogen production capability and durability, can reduce the amount of catalyst used and simplify the electrode Production process, with market price competitiveness.

By adjusting the electrolyte separation conditions, the research group can control the fine structure of cerium oxide and determine the conditions for the uniform formation of trace cerium oxides. By making a hydropower decomposition device, high-quality hydrogen is produced in a small amount of precious metals (0.4 mg/cm2). It was also confirmed that the cerium oxide layer can be used as a protective film for a porous metal support under hydrolytic decomposition conditions.

The research group stated that the electrolyte and antimony oxide catalyst and protective film technology developed this time have the dual role of anti-corrosion and improving the reaction efficiency, and provided assistance for the research and development of hydrogen fuel and renewable energy technologies.

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