Intrinsic anisotropic crystallization of gold into microplates

Literature Information

Publication Date 2015-10-02
DOI 10.1039/C5CE01615K
Impact Factor 3.545
Authors

Sanju Francis, Lalit Varshney


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Abstract

In solution-based methods for the synthesis of crystals, capping agents provide stability to the system and are also believed to play a crucial role in producing crystals with controlled morphologies. In this study, we show that gold crystals with plate morphology can be produced without using capping ligands, chemical reducing agents or other additives by plainly exposing chloroauric acid solution to gamma radiation from a 60Co source. The crystallization occurs intrinsically at room temperature and produces bare nanocrystals which may find applications in the field of catalysis and sensors where surface exposure is of utmost importance for maximum interaction of the analyte.

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CrystEngComm

CrystEngComm
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CrystEngComm is the forum for the design and understanding of crystalline materials. We welcome studies on the investigation of molecular behaviour within crystals, control of nucleation and crystal growth, engineering of crystal structures, and construction of crystalline materials with tuneable properties and functions. We publish hypothesis-driven research into… how crystal design affects thermodynamics, phase transitional behaviours, polymorphism, morphology control, solid state reactivity (crystal-crystal solution-crystal, and gas-crystal reactions), optoelectronics, ferroelectric materials, non-linear optics, molecular and bulk magnetism, conductivity and quantum computing, catalysis, absorption and desorption, and mechanical properties. Using Techniques and methods including… Single crystal and powder X-ray, electron, and neutron diffraction, solid-state spectroscopy, spectrometry, and microscopy, modelling and data mining, and empirical, semi-empirical and ab-initio theoretical evaluations. On crystalline and solid-state materials. We particularly welcome work on MOFs, coordination polymers, nanocrystals, host-guest and multi-component molecular materials. We also accept work on peptides and liquid crystals. All papers should involve the use or development of a design or optimisation strategy. Routine structural reports or crystal morphology descriptions, even when combined with an analysis of properties or potential applications, are generally considered to be outside the scope of the journal and are unlikely to be accepted.

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