Core-satellite nanocomposite catalysts protected by a porous silica shell: controllable reactivity, high stability, and magnetic recyclability.

The development of more efficient and stable catalysts hasbeen an increasingly important goal for chemists andmaterials scientists for both economic and environmentalreasons. Much attention has been paid recently to nano-particlesoftransitionmetals,particularlynoblemetals,asaresult of significant progress in synthetic methods forcontrollingtheircomposition,size,andshape.Thisdevelop-ment should lead to the design of catalysts with superiorperformance that take advantage of nanoparticles highsurface-to-volume ratio and their shape-dependent surfacestructure.

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