A supercritical ethanol route for one-pot synthesis of tin sulfide–reduced graphene oxides and their anode performance for lithium ion batteries

다국어 초록 (Multilingual Abstract)

<P><B>Abstract</B></P> <P>A simple, green, and ultra-fast one-pot supercritical ethanol (scEtOH) route was developed to synthesize tin sulfide–reduced graphene oxides (SnS–RGOs) by the simultaneous reduction of GO and the heterogeneous nucleation and growth of SnS nanosheets on the basal plane of RGO. The SnS–RGO composites exhibited a mesoporous structure with porosity up to 63%. When tested as an anode in lithium-ion batteries, the SnS–RGO composite with 44wt% SnS loading delivered high reversible capacity of 613mAhg<SUP>−1</SUP> at 50mAg<SUP>−1</SUP> after 100 cycles and high rate capacity of 198mAhg<SUP>−1</SUP> at a high charge-discharge rate of 1Ag<SUP>−1</SUP>.</P> <P><B>Highlights</B></P> <P> <UL> <LI> One-pot and green synthesis of SnS–RGO composite in supercritical ethanol. </LI> <LI> Uniform deposition of SnS nanosheets on the basal plane of RGO resulted. </LI> <LI> SnS–RGO exhibited mesoporous structure with high porosity. </LI> <LI> SnS–RGO exhibited high reversible capacity of 613mAg<SUP>−1</SUP> at 50mAg<SUP>−1</SUP>. </LI> <LI> Excellent high-rate performance of 198mAhg<SUP>−1</SUP> at 1Ag<SUP>−1</SUP> resulted. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>