Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 144, Issue 34, Pages 15754-15763Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.2c06436
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Funding
- National Key R&D Program of China [2018YFE0201701, 2018YFA0209401, 2017YFA0207303]
- National Nature Science Foundation of China [22105041, 21733003, 21975050]
- Program of Shanghai Academic Research Leader [21XD1420800]
- Shanghai Pilot Program for Basic Research-FuDan University [21TQ1400100, 21TQ008]
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This study demonstrates a facile micelle anisotropic self-assembly approach to fabricate asymmetric carbon hemispheres with a jellyfish-like shape and radial multilocular mesostructure. The fabricated jellyfish-like hemispheres show excellent sodium-storage performance.
Asymmetric materials have attracted tremendous interest because of their intriguing physicochemical properties and promising applications, but endowing them with precisely controlled morphologies and porous structures remains a formidable challenge. Herein, a facile micelle anisotropic self-assembly approach on a droplet surface is demonstrated to fabricate asymmetric carbon hemispheres with a jellyfish-like shape and radial multilocular mesostructure. This facile synthesis follows an interface-energy-mediated nucleation and growth mechanism, which allows easy control of the micellar self-assembly behaviors from isotropic to anisotropic modes. Furthermore, the micelle structure can also be systematically manipulated by selecting different amphiphilic triblock copolymers as a template, resulting in diverse novel asymmetric nanostructures, including eggshell, lotus, jellyfish, and mushroom-shaped architectures. The unique jellyfish-like hemispheres possess large open mesopores (similar to 14 nm), a high surface area (similar to 684 m(2) g(-1)), abundant nitrogen dopants (similar to 6.3 wt %), a core-shell mesostructure and, as a result, manifest excellent sodium-storage performance in both half and full-cell configurations. Overall, our approach provides new insights and inspirations for exploring sophisticated asymmetric nanostructures for many potential applications.
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