In situ template synthesis of SnO nanoparticles on nickel foam with high electrochemical performance

A solution strategy performed at room temperature was presented for the in situ synthesis of SnO nanoparticles. SnO nanoparticles were prepared through the following sequent procedure: (1) preparation of rod-like Cd(OH)Cl utilizing the reaction between Cd 2+ ions and epoxide; (2) production of Sn 21 Cl 16 (OH) 14 O 6 template through the cation exchange reaction between Cd(OH)Cl and Sn 2+ ions; (3) formation of SnO nanoparticles on nickel foam by the in situ reaction in strong alkaline electrolyte solution before electrochemical measurement. The as-prepared SnO had very small particle size and ordered nanostructure of particulate sheet, therefore resulting in its excellent electrochemical performance including high specific capacitance and high electrochemical stability for the charge-discharge cycle. Hence, the SnO nanoparticles synthesized in this work could be considered as one promising metal oxide for the utilization as electrode material in supercapacitor. SnO nanoparticles were prepared by an in situ template strategy. The synthetic procedure included the production of rod-like Cd(OH)Cl precursor at room temperature, preparation of platelet-like Sn 21 Cl 16 (OH) 14 O 6 template through a cation exchange reaction, and the in situ synthesis of SnO nanoparticles from the template on nickel foam. Due to the small particle size, SnO presented high electrochemical performance as electrode material for application in supercapacitor.