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Herein, coral-like ZnFe2O4 particles were prepared by a stepwise strategy, which contains a synthesis process and a subsequent etching process. Etching process can greatly improve the specific surface area of the ZnFe2O4. The specific surface area of the coral-like ZnFe2O4 particles is 200 times larger than that of the un-etched ZnFe2O4 particles. The ferric ion of ZnFe2O4 can be reduced gradually...
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