Amanda Peterson Mann - Synthesis of Single-Crystalline Nanoplates by Spray Pyrolysis: A Metathesis Route to Bi2WO6

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  Publication Details (including relevant citation   information):

  Amanda K. P. Mann and Sara E. Skrabalak, Chemistry of   Materials, 2011, 23 (4), pp 1017–1022,   DOI: 10.1021/cm103007v



  Here, a solid-state metathesis reaction has been coupled with   ultrasonic spray pyrolysis (USP) for the first time, yielding   single-crystalline Bi2WO6 nanoplates. USP   typically produces polycrystalline spherical particles, but by   selecting precursors that yield Bi2WO6 and   non-transient byproducts (e.g., NaCl), particles that are both   single-crystalline and shape-controlled are achieved. This   unprecedented result is directly correlated to the metathesis   route employed to synthesize Bi2WO6 and   contrasts with the results obtained when conventional precursors   are used, which yields Bi2WO6 microspheres.   Both the Bi2WO6 nanoplates and microspheres   were extensively characterized. This comparative analysis found   that the samples also differ in their surface terminations and   hydrophilicity. Significantly, the integration of metathesis   chemistry into spray pyrolysis may be generally applicable to the   synthesis of a range of compositionally complex solids as   single-crystalline samples.

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