Wang, Dingsheng and Peng, Qing and Li, Yadong (2010) Nanocrystalline intermetallics and alloys. Nano Research, 3 (8). pp. 574-580. ISSN 1998-0124 (Print) 1998-0000 (Online)
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Official URL: http://www.springerlink.com/content/w814v27j56x118...
Nanocrystalline intermetallics and alloys are novel materials with high surface areas which are potential low-cost and high-performance catalysts. Here, we report a general approach to the synthesis of a large variety of nanocrystalline intermetallics and alloys with controllable composition, size, and morphology: these include Au-, Pd-, Pt-, Ir-, Ru-, and Rh-based bi- or tri-metallic nanocrystals. We find that only those intermetallics and alloys whose effective electronegativity is larger than a critical value (1.93) can be prepared by co-reduction in our synthetic system. Our methodology provides a simple and convenient route to a variety of intermetallic and alloyed nanomaterials which are promising candidates for catalysts for reactions such as methanol oxidation, hydroformylation, the Suzuki reaction, cyclohexene hydroconversion, and the selective hydrogenation of acetylene.
|Subjects:||Material Science > Nanostructured materials|
|Deposited By:||M T V|
|Deposited On:||23 Aug 2010 14:36|
|Last Modified:||23 Aug 2010 14:36|
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