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- Title
Facile synthesis of 3D binder-free N-doped carbon nanonet derived from silkworm cocoon for Li-O battery.
- Authors
Jing, Shengyu; Zhang, Maoshen; Liang, Huagen; Shen, Baolong; Yin, Shibin; Yang, Xu
- Abstract
Rechargeable nonaqueous lithium-O batteries are considered as the most promising energy storage system for electric vehicles due to their extremely high energy density. However, the inefficient O diffusion, large overpotential and unwanted side reaction still restrict their specific capacity and cycle performance. This work presents a facile method to prepare a novel 3D binder-free N-doped carbon nanonet by using an economical, green and sustainable biomass-silkworm cocoon as the precursor. Li-O batteries with this N-doped carbon nanonet as the cathode delivered a superior specific capacity and excellent cycling stability, which attributable to the 3D porous and through structure, high specific surface area, the enhanced catalytic activity of ORR/OER arising from the incorporation of N, and the absence of binders in the electrode. Therefore, by taking advantages of the unique structure and morphology of biomass, the low-cost and green 3D binder-free N-doped carbon materials are a feasible approach for the preparation of high-performance cathode for Li-O battery.
- Subjects
LITHIUM-ion batteries; BINDING agents; DOPING agents (Chemistry); CARBON nanotubes; ENERGY density
- Publication
Journal of Materials Science, 2018, Vol 53, Issue 6, p4395
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-017-1818-7