Nanotech catalyst could reduce use of expensive and toxic heavy metals

25-Feb-10
A new nanotech catalyst offers industry an opportunity to reduce the use of expensive and toxic heavy metals. Catalysts are substances used to facilitate and drive chemical reactions. Although chemists have long been aware of the ecological and economic impact of traditional chemical catalysts and do attempt to reuse their materials, it is generally difficult to separate the catalyzing chemicals from the finished product. A discovery that does away with this chemical process altogether has been developed by McGill University Chemists Chao-Jun Li, Audrey Moores and their colleagues. The technology is known as nanomagnetics and involves nanoparticles of a simple iron magnet. Nanoparticles are sized between 1 and 100 nanometres (a strand of hair is about 80,000 nanometres wide). The catalyst itself is chemically benign and can be efficiently recycled. In terms of practical applications, their method can already be used to generate the reactions that are required for example in pharmaceutical research, and could in the future be used to achieve reactions necessary for research in other industries and fields.
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