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Amines-induced Phase Transition from White Phosphorus to Red/Black Phosphorus for Li/K-ion Storage

Abstract

An amines-induced phase transition strategy is developed for converting white phosphorus into red or black phosphorus. Amorphous red phosphorus is prepared through the chemical dissolution of white phosphorus in amines and post-treatment at room temperature. It is demonstrated that the phase transformation mechanism undergoes the amine-induced nucleophile attack on white phosphorus and the generation of polyphosphorus ions. The amorphous phosphorus exhibits a specific capacity of 955.5 mA h g-1 at 1.5 A g-1 after 1000 cycles, and a capacity retention of 1210.2 mA h g-1 even at 20 A g-1 for Li-ion batteries. The methodology is also applicable to produce red phosphorus micro-spheres and black phosphorus particles by varying the types of organic amines and reaction temperature.

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Supplementary files

Publication details

The article was received on 16 Apr 2019, accepted on 13 May 2019 and first published on 13 May 2019


Article type: Communication
DOI: 10.1039/C9CC02971K
Chem. Commun., 2019, Accepted Manuscript

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    Amines-induced Phase Transition from White Phosphorus to Red/Black Phosphorus for Li/K-ion Storage

    Y. Li, S. Jiang, Y. Qian, Y. Han, J. Zhou, T. Li, L. Xi, N. Lin and Y. Qian, Chem. Commun., 2019, Accepted Manuscript , DOI: 10.1039/C9CC02971K

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