ZIF-8 derived nano-SnO2@ZnO as anode for Zn/Ni secondary batteries

Abstract SnO 2 @ZnO was synthesized by a new method involving the immobilization of Sn onto zeolitic imidazolate framework-8 (ZIF-8) followed by calcination. The synthesized nanoparticles were characterized as 20–30 nm spherical ZnO particles uniformly dotted with SnO 2 . When SnO 2 @ZnO were used as anode material for Zn/Ni batteries, the average specific capacity was approximately 600 mAh g − 1 and remained stable after 150 cycles at a rate of 1 C.