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Ordered intermetallic core-shell nanocatalysts are promising designs for fuel cells

 They can burn fuel in such a clean way that the exhaust would contain nothing but water and dissipated heat. If fuel cells are such cool devices empowering next generation automotives then why have they not yet been commercialized? The problem lies at the heart of the chemical reactions taking place inside a fuel cell and unfortunately, they are inherently sluggish. We need catalysts to make these reactions happen faster. Platinum, even today, is being thought of as a wonder catalyst. But such an idea is nothing but impractical. Simply because platinum metal is scarce, overly expensive and despite using it in a fuel cell the reactions are still slow. Fuel cells would still be expensive, even if we replace big chuncks of platinum metal with an assemblage of tiny platinum nanoparticles.

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