Posts Tagged ‘CO oxidation’
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April 21st, 2010
Premier Chemicals developing new markets for NanAuCat
In July last year, UK-based Premier Chemicals announced they had agreed an exclusive tie-up with 3M to market their new gold catalyst under the brand name NanAuCat. The company have since been working hard to both meet demand for the catalyst from established markets, and to uncover potential new markets through various R&D activities.It seems that these activities are paying off. It’s great to see new press releases like this on Premier’s website. The article details how NanAuCat is being used as a CO oxidation catalyst in the gas analysers of Signal Group to help enable the accurate monitoring of greenhouse gas emissions.
For more details of NanAuCat, check out the brochure here.
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November 6th, 2009
Linking catalyst properties to particle size
This weeks edition of Science carries a nice paper entitled Electronic Structure Controls Reactivity of Size-Selected Pd Clusters Adsorbed on TiO2 Surfaces. What the authors, based at the University of Utah, have demonstrated is the first conclusive link between the size of catalyst particles on a solid surface, their electronic properties and their ability to speed up chemical reactions.
This is an important paper indeed. Take gold as an example – it’s pretty expensive stuff, as are all of the noble metals employed as catalysts. If, say, 50% of a precious metal catalyst is in fact inactive/poorly active because the particles are not of an optimal size then that adds up to a lot of wasted gold. A better understanding of the link between particle size and activity will undoubtedly make for more efficient (both chemically and economically!) catalysts
Trevor Keel
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