Liquid-phase synthesis of highly oxophilic zerovalent niobium and tantalum nanoparticles. Issue 30 (29th March 2021)

• Record Type: Journal Article
• Authors: Egeberg, Alexander; Faden, Lara-Pauline; Zimina, Anna; Grunwaldt, Jan-Dierk; Gerthsen, Dagmar; Feldmann, Claus
• Is Part Of: Chemical communications. Volume 57:Issue 30(2021)
• Page Start: 3648
• Page End: 3651
• Publication Date: 2021-03-29
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc00681a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Zerovalent Nb(0) and Ta(0) nanoparticles are prepared via a one-pot, liquid-phase synthesis for the first time. This is a challenge due to the basic and highly oxophilic character of both metals. Abstract : Zerovalent niobium, Nb(0), and tantalum, Ta(0), nanoparticles are prepared via a one-pot, liquid-phase synthesis. For this, NbCl5 /TaCl5 are 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.