Iran News ...


09/26/08

Scientists of Zanjan University Produced New Catalysts: TEMPO

Source: The Iraninan Nanotechnology Initiative

Dr. Babak Karimi, a researcher at Zanjan Univerity, has studied the methods of producing TEMPO catalyst on the basis of SBA-15 solid nanostructure (a porous, highly ordered solid matter) and its applications in the alcohol oxidation under atmosphere.

Tetra Methyl Piperidine-1-Oxile (TEMPO) is a new type of polymer that can be used as a proper substitute for metals as the catalyst in alcohol oxidation. This catalyst can be recycled when the reaction is through. Upon utilizing this new polymer, there is no need to use heavy metals in the oxidation process and, furthermore, one can make use of air atmosphere, which is quite significant from an environmental point of view.

In an interview with the news agency of Iranian Nanotechnology Initiative, he said: "TEMPO would be destroyed if exposed to higher than 4˚c of temperature. This research shows that TEMPO will be all right even in 220˚c if distributed properly on the surface of SBA-15 solid nanostructure. The regular and porous structure of SBA-15 makes homogenous distribution of active catalyst centers possible and, as a result, the catalyst shows gentle and renewable characteristics. This catalyst helps turning alcohols into carbonyls, which are the raw materials for many industries such as perfume industry."

This research was executed by Abbas Biglarry under the supervision of Dr. Karimi. It's results were published in the world's most prestigious chemistry journal Angew-chemistry.Int.Ed (pp.7210-7213, vol.46, 2007).

... Payvand News - 09/26/08 ... --



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