关键字：TRANSFORMATION; CATHODE; VN

摘要：Herein, surface-oxidized vanadium nitride (O-VN) is synthesized by a one-step hydrothermal method without multi-step reactions, and is applied as a cathode material for aqueous zinc ion batteries. After in situ electrochemical activation, it turns into Zn-3(OH)(2)V2O7 center dot 2H(2)O with copious oxygen vacancies/defects. The electrochemical phase transition and in situ defect induction can provide abundant active sites for the storage of Zn2+, thus increasing the energy storage performance of electrode materials. As expected, Zn-3(OH)(2)V2O7 center dot 2H(2)O with oxygen defects has good structural and morphological stability during cycling, and exhibits excellent specific capacity (510 mA h g(-1) at 0.1 A g(-1) and 199 mA h g(-1) at 10 A g(-1)) and superior cycle stability (72.6% capacity retention after 3000 cycles at 20 A g(-1)).

卷号：25

期号：1

是否译文：否