Tricks of chemical synthesis

It would appear that scientists at UIUC have invented a process that allows the use of high-intensity ultrasound to generate both hollow nanospheres and hollow nanocrystals of molybdenum disulfide and molybdenum oxide. These have interesting applications in catalysis. As other work on nanocatalysts from scientists at CBEN at Rice shows using palladium on gold nanoparticles to break down TCE — its the surface area that counts. If you can get to the inside of a sphere (or crystal) and the walls aren't too thick, don't you have twice as much surface area?

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