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Iranian researchers from the Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, succeeded in the production of manganese oxide nanopowder through a simple, cost-effective and environmental-friendly method.
The product has wide applications in petrochemical industries and battery fabrication.
Taking into consideration the wide applications of the products, researchers looked for a simple and cheap method in this research to produce a special type of manganese oxide. They also investigated the oxidation activity of water in the presence of the produced manganese oxide.
According to Dr. Mohammad Mehdi Najafpour, one of the researcers of the plan, the majority of the methods to produce manganese oxide require surfactant organic solvents and high temperature conditions. However, simple methods have been developed, which are mostly based on the use of high temperature in the production of common metal oxides.
"It was turned out in this research that some cheap compounds of manganese can be degraded to manganese nano-oxides in the presence of humidity at temperatures around 100°C or even less," he added.
The researchers found out that manganese nano-oxides start to form after a few hours when a thick solution of manganese nitrate (II) is placed at a temperature of 70-90°C.
Results of the research showed that manganese nano-oxides produced in the presence of various oxidants was able to oxidize water to oxygen, and alkenes to epoxides. The rate and efficiency of the reactions showed significant increase in comparison with samples at micrometric scale. Reduction in the size of nanoparticles can be considered the main reason to this fact.
Results of the research have been published in details in Dalton Transactions, vol. 41, issue 36, July 2012, pp. 11026-11031.
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