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Issue 1, 2015
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One-step synthesis of Ni-doped SnO2 nanospheres with enhanced lithium ion storage performance

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Abstract

In our work, Ni-doped SnO2 nanospheres have been synthesized via a one-step hydrothermal method using glucose as the soft template. Their structure and physicochemical properties were investigated using X-ray diffraction (XRD), a transmission electron microscope (TEM), a field-emission scanning electron microscope (FE-SEM) equipped with energy-dispersive X-ray spectroscopy (EDS), high resolution transmission electron microscopy (HRTEM) and electrochemical methods. Compared with the pristine SnO2, appropriate Ni-doped SnO2 nanospheres showed much better rate capability and excellent cycling performance. In particular, the sample with 5 mol% Ni showed a high initial reversible capacity of 1267 mA h g−1 at a charge–discharge rate of 0.2 C, and a stable reversible capacity of 674.8 mA h g−1 after 35 cycles. Nickel doping could accommodate the huge volume expansion and avoid the agglomeration of nanoparticles. Thus, the electrochemistry performance was significantly improved.

Graphical abstract: One-step synthesis of Ni-doped SnO2 nanospheres with enhanced lithium ion storage performance

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Publication details

The article was received on 14 Jun 2014, accepted on 11 Sep 2014 and first published on 12 Sep 2014


Article type: Paper
DOI: 10.1039/C4NJ00989D
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New J. Chem., 2015,39, 130-135

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    One-step synthesis of Ni-doped SnO2 nanospheres with enhanced lithium ion storage performance

    X. Ye, W. Zhang, Q. Liu, S. Wang, Y. Yang and H. Wei, New J. Chem., 2015, 39, 130
    DOI: 10.1039/C4NJ00989D

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