Liang, L;
Xu, Y;
Li, Y;
Dong, H;
Zhou, M;
Zhao, H;
Kaiser, U;
(2017)
Facile synthesis of hierarchical fern leaf-like Sb and its application as an additive-free anode for fast reversible Na-ion storage.
Journal of Materials Chemistry A
, 5
(4)
pp. 1749-1755.
10.1039/c6ta10345f.
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Facile synthesis of hierarchical fern leaf-like Sb and its application as additive-free anode for fast reversible Na-ion storage.pdf - Accepted Version Download (1MB) | Preview |
Abstract
Hierarchical Sb was successfully fabricated via a very simple and cost-effective electrochemical deposition method. Morphological and structural characterizations show that the as-prepared Sb has a uniform fern leaf-like structure which is composed of well-crystallized Sb nanoparticles. The formation mechanism of the fern leaf-like Sb was also investigated. The hierarchical Sb exhibits desirable properties for sodium storage, such as high electrical conductivity and large surface area. When used as an additive-free anode for Na-ion batteries, the as-obtained fern leaf-like Sb reveals excellent cycling stability and rate capability. It can afford a high reversible capacity of 589 mA h g−1 over 150 cycles at 0.5 A g−1 and retain a capacity of 498 mA h g−1 at a high rate of 10 A g−1. Furthermore, a full cell constructed using P2-Na2/3Ni1/3Mn2/3O2//fern leaf-like Sb also displays remarkably stable and robust Na-storage performance, which includes a high capacity retention of 70% after 100 cycles at 0.5 A g−1 and a large capacity of 370 mA h g−1 at 10 A g−1. The excellent electrochemical performance of fern leaf-like Sb can be attributed to its morphological and structural features that ensure fast ion and electron transport and a stable electrode structure.
| Type: | Article |
|---|---|
| Title: | Facile synthesis of hierarchical fern leaf-like Sb and its application as an additive-free anode for fast reversible Na-ion storage |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1039/c6ta10345f |
| Publisher version: | https://doi.org/10.1039/c6ta10345f |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10076162 |
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