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Issue 23, 2017
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Hierarchically porous CoNiO2 nanosheet array films with superior sodium storage performance

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Abstract

Nanostructured transition metal oxides are considered as some of the promising anode materials for rapidly emerging sodium ion batteries. Herein, a hierarchically porous CoNiO2 nanosheet array film is prepared via a low-temperature solvothermal method with subsequent annealing treatment. As a self-supported anode for sodium ion batteries (SIBs), the as-prepared hierarchically porous CoNiO2 nanosheet array film manifests superior sodium storage performance. The film electrode delivers a large reversible capacity of 746.6 mA h g−1 after 100 cycles at 200 mA g−1. In particular, a capacity of 419 mA h g−1 is achieved at a high current density of 1600 mA g−1, demonstrating a good rate capability.

Graphical abstract: Hierarchically porous CoNiO2 nanosheet array films with superior sodium storage performance

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Publication details

The article was received on 28 Aug 2017, accepted on 31 Oct 2017 and first published on 31 Oct 2017


Article type: Letter
DOI: 10.1039/C7NJ03241B
Citation: New J. Chem., 2017,41, 14072-14075
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    Hierarchically porous CoNiO2 nanosheet array films with superior sodium storage performance

    L. Chang, K. Wang, L. Huang, Z. He, H. Shao and J. Wang, New J. Chem., 2017, 41, 14072
    DOI: 10.1039/C7NJ03241B

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