Liquid-phase synthesis of highly oxophilic zerovalent niobium and tantalum nanoparticles

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Abstract

Zerovalent niobium, Nb(0), and tantalum, Ta(0), nanoparticles are preparedviaa one-pot, liquid-phase synthesis. For this, NbCl5/TaCl5are dissolved in pyridine and reduced by lithium pyridinyl. Deep black suspensions of very small, highly uniform nanoparticles are obtained with average diameters of 2.1 ± 0.4 nm (Nb(0)) and 1.9 ± 0.4 nm (Ta(0)). Whereas suspensions are chemically and colloidally stable, powder samples are very reactive. TEM/HRTEM, XRD, FT-IR, and XANES are used for characterization.

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Egeberg, A., Faden, L. P., Zimina, A., Grunwaldt, J. D., Gerthsen, D., & Feldmann, C. (2021). Liquid-phase synthesis of highly oxophilic zerovalent niobium and tantalum nanoparticles. Chemical Communications, 57(30), 3648–3651. https://doi.org/10.1039/d1cc00681a

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