Singapore researchers first to transform carbon dioxide into methanol
Singapore researchers first to transform carbon dioxide into methanol
Scientists at Singapore’s Institute of Bioengineering and Nanotechnology (IBN) have succeeded in unlocking the potential of carbon dioxide a common greenhouse gas by converting it into a more useful product. In the international chemistry journal Angewandte Chemie, the IBN researchers report http://www.cheapjerseys11.com/ that by using organocatalysts, they activated carbon dioxide in a mild and non toxic process to produce methanol, a widely used industrial feedstock and clean burning biofuel.
Organocatalysts are catalysts that are comprised of non metallic elements found in organic compounds. NHCs such as IMes (1,3 bis (2,4,6 trimethylphenyl)imidazolylidene) are a form of organocatalysts that are stable and easily stored. They do not contain toxic heavy metals and can be produced easily without high costs.
The scientists made carbon dioxide react by using N heterocyclic carbenes (NHCs), a novel organocatalyst. In contrast to heavy metal catalysts that contain toxic and unstable components, NHCs are stable, even in the presence of oxygen. Hence, the reaction with NHCs and carbon dioxide can take place under mild conditions in dry air.
The IBN scientists showed that Pills only a small amount of NHC is required to induce carbon dioxide activity in a reaction. “NHCs have shown tremendous potential for activating and fixing carbon dioxide. under the Scientific Staff Development Award at IBN, one of the research institutes of Singapore’s ASTAR (Agency for Science, Technology and Research).
Hydrosilane, a combination of silica and hydrogen, is added to the NHC activated carbon dioxide, and the product of this reaction is transformed into methanol by adding water through hydrolysis. This carbon dioxide reduction is efficiently catalyzed by NHCs even at room temperature. Methanol can be easily obtained from the product of the carbon dioxide reaction. Our previous research on NHCs has demonstrated their multiple applications as powerful antioxidants to fight degenerative diseases, and as effective catalysts to transform sugars into an alternative energy source. We have now shown that NHCs can also be applied successfully to the conversion of carbon dioxide into methanol, helping to unleash the potential of this highly abundant gas.”
Previous attempts to reduce carbon dioxide to more useful products have required more energy input and a much longer reaction time. They also require transition metal catalysts, which are both unstable in oxygen and expensive. Ongoing research at IBN aims to find cheap alternatives for the hydrosilane reagent so that the production of methanol can be even more cost effective for mass industrial production.
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