According to the website of the Ministry of Science and Technology, many inorganic metal oxides can be used as catalysts for energy conversion in oxygen reduction, oxygen evolution, and hydrogen evolution reactions. However, in most cases, their catalytic performance is not high. The main reason for this is that they have low conductivity and small catalytic active sites.
The research group of Kyushu University in Japan used a highly conductive carbon nanotube (CNT) as a basic material, which was first covered with polybenzimidazole (PBI), and then the solute synthesis of spinel structure on it. Inorganic metal oxides (NixCo3-xO4). The efficiency of oxygen reduction and oxygen evolution reaction of the fuel cell catalyst prepared by this method is very high, and the durability of the catalyst is also very strong. The research group applied the method of producing CNT/PBI/Pt catalysts to inorganic metal materials in the past, and evenly coated spinel-structured inorganic metal oxide nanocrystals on highly conductive nanotubes, thereby improving the catalytic activity.
The results were published in the electronic version of Scientific Reports.
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