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|Title:||Ternary cobalt-iron phosphide nanocrystals with controlled compositions, properties, and morphologies from nanorods and nanorice to split nanostructures|
|Citation:||Ye, E., Zhang, S.-Y., Lim, S.H., Bosman, M., Zhang, Z., Win, K.Y., Han, M.-Y. (2011-05-16). Ternary cobalt-iron phosphide nanocrystals with controlled compositions, properties, and morphologies from nanorods and nanorice to split nanostructures. Chemistry - A European Journal 17 (21) : 5982-5988. ScholarBank@NUS Repository. https://doi.org/10.1002/chem.201002698|
|Abstract:||Structural phase-controlled formation of binary Co2P and CoP nanocrystals is achieved by reacting cobalt(II) oleate with trioctylphosphine. In the absence of oleylamine, Co2P nanowires are formed at both 290 and 320°C. In the presence of oleylamine, Co2P nanorods are formed at 290°C, and CoP nanorods are formed at 320°C. With the simultaneous reaction of iron(III) oleate and cobalt(II) oleate with trioctylphosphine in the presence of oleylamine, ternary Co2P-type cobalt-iron phosphide nanostructures are produced at both 290 and 320°C, corresponding to rice-shaped Co1.5Fe0.5P nanorods and split Co1.7Fe0.3P nanostructures, respectively. The controlled incorporation of iron into cobalt phosphide can alter the magnetic properties from paramagnetic binary Co2P to ferromagnetic Co 2P-type ternary cobalt-iron phosphide nanostructures. Meanwhile, the time-dependent morphological evolution from small nanodots/nanorods, through seeded growth to unique split nanostructures is demonstrated in one-pot reaction at 320°C. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.|
|Source Title:||Chemistry - A European Journal|
|Appears in Collections:||Staff Publications|
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