Journal
ACS APPLIED ENERGY MATERIALS
Volume 3, Issue 9, Pages 8171-8178Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.0c01650
Keywords
Ti3C2Tx MXene; freeze-casting; 3D macropore structure; high-rate energy storage; electromagnetic interference shielding
Funding
- China Postdoctoral Science Foundation [2019M661274]
- National Natural Science Foundation of China [51573035]
- Heilongjiang Postdoctoral Fund [LBH-Z19140]
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A three-dimensional (3D) cellular MXene (Ti3C2Tx) film is fabricated through the filtration assembly of MXene microgels and a subsequent freeze-casting process. Fully exposed MXene nanosheets create a high-ion-accessible surface area, and the highly interconnected MXene networks facilitate ion transport, which enable the 3D cellular MXene film to acquire a high-rate energy storage. Moreover, the continuous conductive porous structure endows such film with a superior absolute electromagnetic interference shielding effectiveness (127083 dB cm(2) g(-1)). This work provides a facile strategy for building a 3D macroporous MXene film and opens up the opportunities to explore the other uses of MXene.
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