Functional Materials Letters · 2011 · 30 citations · 30 references
EngineeringHomogeneous PrecipitationChemistryWhite Sno 2Chemical EngineeringNanoengineeringSncl 2Materials ScienceBattery Electrode MaterialsAdvanced Electrode MaterialLithium-ion BatteryEnergy StorageSolid-state BatteryEnergy MaterialElectrochemistryNanomaterialsLi-ion Battery MaterialsElectrochemical Energy StorageBatteries
A new synthetic route to ~4 nm grain-sized SnO 2 was proposed which involved a homogeneous precipitation in a deep eutectic solvent (DES) at room temperature. The white SnO 2 precipitate was obtained from SnCl 2 ⋅ 2 H 2 O dissolved DES by injecting slow drop-wise H 4 N 2 ⋅ H 2 O under stirring. The as-prepared nanocrystalline SnO 2 has a Brunauer–Emmett–Teller surface area of 65.12m 2 /g with an average Barretl–Joyner–Halenda pore diameter of 3.5 nm. As anode for lithium ion batteries, the nanocrystalline SnO 2 electrode delivered an initial charge capacity as high as 1045 mAh/g and its capacity retention is 58% after 30 cycles.
30