Research on zinc cobaltate porous mesh materials with different percentages of Sm doping: synthesis, structural and capacitive properties analysis

Sm–ZnCo 2 O 4 doping with different proportions of Sm doping produced oxygen vacancy defects, which improved the performance of the material. The specific capacitance retention of 3% Sm–ZnCo 2 O 4 //CNTs asymmetric solid-state devices was 95%.