Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 13, Pages 12535-12543Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b00593
Keywords
MXene; electromagnetic property; electromagnetic energy absorption; power generation; energy conversion
Funding
- National Natural Science Foundation of China [11774027, 51132002, 51372282]
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The utilization of electromagnetic (EM) energy neither is affected by the weather nor produces harmful substances. How to utilize and convert EM energy is of practical concern. Herein, delaminated titanium carbide (D-Ti3C2Tx) MXene nanosheet (NS) was successfully fabricated by the modified Gogotsi's method. The choice of atomic layer processing allows tailoring of layer distance of Ti3C2Tx so as to improve polarization. High-performance EM wave absorption of D-Ti3C2Tx MXene NS composites was obtained, and their comprehensive performance is the best of all Ti(3)C(2)Tx-based composites. Due to the competition between conduction loss and polarization loss, the higher the concentration of D-Ti3C2Tx in composites, the more the conversion of EM energy to thermal energy will be. Based on the mechanism, a prototype of thermoelectric generator is designed, which can convert the EM energy into power energy effectively. This thermoelectric generator will be the energy source for low power electric devices. Our finding will provide new ideas for the utilization of EM energy.
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