Nanocrystal conversion chemistry: A unified and materials-general strategy for the template-based synthesis of nanocrystalline solids |
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Authors: | Yolanda Vasquez Amanda E. Henkes J. Chris Bauer Raymond E. Schaak |
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Affiliation: | aDepartment of Chemistry, Texas A&M University, College Station, TX 77842, USA;bDepartment of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA |
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Abstract: | The concept of nanocrystal conversion chemistry, which involves the use of pre-formed nanoparticles as templates for chemical transformation into derivative solids, has emerged as a powerful approach for designing the synthesis of complex nanocrystalline solids. The general strategy exploits established synthetic capabilities in simple nanocrystal systems and uses these nanocrystals as templates that help to define the composition, crystal structure, and morphology of product nanocrystals. This article highlights key examples of “conversion chemistry” approaches to the synthesis of nanocrystalline solids using a variety of techniques, including galvanic replacement, diffusion, oxidation, and ion exchange. The discussion is organized according to classes of solids, highlighting the diverse target systems that are accessible using similar chemical concepts: metals, oxides, chalcogenides, phosphides, alloys, intermetallic compounds, sulfides, and nitrides. |
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Keywords: | Nanoparticles Template synthesis Precursor routes to solids |
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