Stepwise chelation-etching synthesis of carbon-confined ultrafine SnO2 nanoparticles for stable sodium storage

Chem Commun (Camb). 2018 Feb 11;54(12):1469-1472. doi: 10.1039/c7cc08959g. Epub 2018 Jan 22.

Abstract

A stepwise chelation-etching approach to synthesize carbon-confined ultrafine SnO2 nanoparticles was developed via conformal coating with polydopamine and chelation-etching with ethylenediaminetetraacetic acid (EDTA). EDTA plays a crucial role in the ordered removal of cobalt and tin. The obtained composite exhibits superior sodium storage performance.