摘要
Murdochite-type Ni6MnO8 three-dimensional mesoporous nanosheet arrays grown on carbon cloth （NMO-SA/CC） are synthesized using an in-situ growth strategy. As self-supported binder-free anodes for LIBs, the NMO-SA/CC hierarchical nanostructures exhibit ultrahigh capacity, excellent cycling stability, and good rate capability. The excellent lithium storage performance can be ascribed to the perfect electrical contact between NMO-SA and CC. The mesopores in the thin nanosheet can maximize the electrode contact with the electrolyte by decreasing the Li＋ diffusion path. Moreover, these effects relieve the pulverization and agglomeration that originate from the large volume variations during the Li＋ intercalation/deintercalation cycles. The in-situ X-ray absorption fine structure （XAFS） spectrum recorded during the initial lithiation/delithiation processes reveals the conversion reaction process.
Murdochite-type Ni6MnO8 three-dimensional mesoporous nanosheet arrays grown on carbon cloth （NMO-SA/CC） are synthesized using an in-situ growth strategy. As self-supported binder-free anodes for LIBs, the NMO-SA/CC hierarchical nanostructures exhibit ultrahigh capacity, excellent cycling stability, and good rate capability. The excellent lithium storage performance can be ascribed to the perfect electrical contact between NMO-SA and CC. The mesopores in the thin nanosheet can maximize the electrode contact with the electrolyte by decreasing the Li＋ diffusion path. Moreover, these effects relieve the pulverization and agglomeration that originate from the large volume variations during the Li＋ intercalation/deintercalation cycles. The in-situ X-ray absorption fine structure （XAFS） spectrum recorded during the initial lithiation/delithiation processes reveals the conversion reaction process.
基金
Acknowledgements We gratefully acknowledge the support of this research by the National Natural Science Foundation of China （Nos. 21371053, 21376065, 21401048, and 21571054）, the Postdoctoral Science Foundation of Heilongjiang Province （No. LBH-TZ0519）, Harbin Science and Technology Innovation Talents Research Foundation （No. 2015RAQXJ057）, Innovative Research Project of Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education.
