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By chemical co-precipitation method the nickel spinel ferrite-coated tetrapod-like ZnO composite was prepared. The coating layer was examined by SEM, XRD and EDS, and the VSM measurement was done to study the dependence of magnetic properties of the nickel spinel ferrite-coated tetrapod-like ZnO composite on calcination temperature. Compared with bulk nickel ferrites, the composite presents a higher...
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