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Metal–Organic Pathways for Anisotropic Growth of a Highly Symmetrical Crystal Structure: Example of the fcc Ni

Abstract : The control of the metallic nanocrystal shape is of prime importance for a wide variety of applications. We report a detailed research work on metal–organic chemical routes for the synthesis of a highly symmetrical crystal structure. In particular, this study shows the key parameters ensuring the anisotropic growth of nickel nanostructures (fcc crystal). Numerous reaction conditions are investigated (precursors, solvents, temperature, reducing agents, reaction time, and types and ratios of surfactants, such as alkyl amines, carboxylic acids, and phosphine oxides), and their effects on the size and shape of the final product are reported. The role of the growth modifiers and the structuring of the reaction media on the anisotropic growth are demonstrated. This metal–organic approach generates several novel anisotropic nanostructures in a wide size range depending on the reaction conditions. In this way, nanomaterials with reproducible size, shape, and composition are obtained with good yield. Transmission electron microscopy techniques (TEM and HRTEM) are the principal methods for monitoring the morphology.
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https://hal.archives-ouvertes.fr/hal-02908288
Contributor : Marie-Hélène Gulli <>
Submitted on : Tuesday, July 28, 2020 - 4:57:27 PM
Last modification on : Wednesday, July 29, 2020 - 6:23:02 PM

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Stefanos Mourdikoudis, Vincent Collière, Catherine Amiens, Pierre Fau, Myrtil Kahn. Metal–Organic Pathways for Anisotropic Growth of a Highly Symmetrical Crystal Structure: Example of the fcc Ni. Langmuir, American Chemical Society, 2013, 29 (44), pp.13491-13501. ⟨10.1021/la402001t⟩. ⟨hal-02908288⟩

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