There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.
Abstract
<p class="first" id="d5526038e93">A molten salt metallothermic reduction strategy
is developed for preparing phosphorus
(P) or phosphides controllably at low temperature, which is simple, energy-saving,
and easy to scale up. Typically, synthesis of spongelike porous amorphous P (a-P)
is realized through reduction of PCl5 with Zn (or Al) at 50 °C assisted by AlCl3.
It is demonstrated that an adduct salt PCl5·AlCl3 composed of PCl4+ and AlCl4- ions
with a low melting point below 50 °C is formed from covalent salts PCl5 and AlCl3.
This system is also suitable for producing nanostructured phosphides by adding corresponding
transition-metal (Co, Fe, and Cu) chlorides even at 50 °C. As a Li storage anode,
the as-prepared a-P exhibits a capacity of 1605 mA h g-1 at 0.2 C, a good rate capability
of 1283 mA h g-1 at 10 C, and a long-term cycling stability of 1082 mA h g-1 after
200 cycles. Additionally, the Na-/K-ion storage performance is investigated systematically.
</p>
[1
]Hefei National Laboratory for Physical Science at Microscale, and Department of Applied
Chemistry, University of Science and Technology of China, Hefei, Anhui Province 230026,
P. R. China