Scientists in China and Canada have reported that they have developed a new composite nanocatalyst that oxidizes carbon monoxide at room temperature, which provides an inexpensive and effective way to remove toxic gases from the air.
According to Professor Zheng Nanfeng, one of the research directors and the Xiamen University, the core of the new catalyst is platinum-transition metal hydroxide composite nanoparticles with a particle size of less than 5 nm. In the experiment, the platinum-iron nickel hydroxide composite nanoparticles can easily oxidize carbon monoxide while maintaining catalytic activity, allowing the catalytic reaction to continuously circulate. Zheng Nanfeng said that this is mainly because the new catalyst has a large number of platinum-iron nickel hydroxide interfaces with synergistic catalytic activity, and the introduction of nickel greatly improves the stability of the catalyst.
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