Synthesis of Black Phosphorene Quantum Dots from Red Phosphorus.

Autor: Shutt RRC; Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK., Ramireddy T; Research School of Chemistry, The Australian National University, Acton, ACT 2601, Australia.; Battery Storage and Grid Integration Program, The Australian National University, Acton, ACT 2601, Australia., Stylianidis E; Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK., Di Mino C; Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK., Ingle RA; Department of Chemistry, University College London, London, WC1E 6BT, UK., Ing G; Department of Chemistry, University College London, London, WC1E 6BT, UK., Wibowo AA; School of Engineering, The Australian National University, Acton, ACT 2601, Australia., Nguyen HT; School of Engineering, The Australian National University, Acton, ACT 2601, Australia., Howard CA; Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK., Glushenkov AM; Research School of Chemistry, The Australian National University, Acton, ACT 2601, Australia.; Battery Storage and Grid Integration Program, The Australian National University, Acton, ACT 2601, Australia., Stewart A; Department of Chemistry, University College London, London, WC1E 6BT, UK., Clancy AJ; Department of Chemistry, University College London, London, WC1E 6BT, UK.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2023 Oct 02; Vol. 29 (55), pp. e202301232. Date of Electronic Publication: 2023 Sep 07.
DOI: 10.1002/chem.202301232
Abstrakt: Black phosphorene quantum dots (BPQDs) are most commonly derived from high-cost black phosphorus, while previous syntheses from the low-cost red phosphorus (P red ) allotrope are highly oxidised. Herein, we present an intrinsically scalable method to produce high quality BPQDs, by first ball-milling P red to create nanocrystalline P black and subsequent reductive etching using lithium electride solvated in liquid ammonia. The resultant ~25 nm BPQDs are crystalline with low oxygen content, and spontaneously soluble as individualized monolayers in tertiary amide solvents, as directly imaged by liquid-phase transmission electron microscopy. This new method presents a scalable route to producing quantities of high quality BPQDs for academic and industrial applications.
(© 2023 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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