Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 15, Issue 12, Pages 1863-1868Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.202000349
Keywords
Porous materials; Composites; Batteries; Surface capacitive charge storage; Templating method
Categories
Funding
- Australian Research Council [DE170101069]
- Australian Nuclear Science and Technology Organisation [AS163/SXR/11473]
- University of Newcastle [G1801056UN]
- Australian Research Council
- University of Newcastle
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Molybdenum disulfide (MoS2) is a promising candidate as a high-performing anode material for sodium-ion batteries (SIBs) due to its large interlayer spacing. However, it suffers from continued capacity fading. This problem could be overcome by hybridizing MoS2 with nanostructured carbon-based materials, but it is quite challenging. Herein, we demonstrate a single-step strategy for the preparation of MoS2 coupled with ordered mesoporous carbon nitride using a nanotemplating approach which involves the pyrolysis of phosphomolybdic acid hydrate (PMA), dithiooxamide (DTO) and 5-amino-1H-tetrazole (5-ATTZ) together in the porous channels of 3D mesoporous silica template. The sulfidation to MoS2, polymerization to carbon nitride (CN) and their hybridization occur simultaneously within a mesoporous silica template during a calcination process. The CN/MoS2 hybrid prepared by this unique approach is highly pure and exhibits good crystallinity as well as delivers excellent performance for SIBs with specific capacities of 605 and 431 mAhg(-1) at current densities of 100 and 1000 mAg(-1), respectively, for SIBs.
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