Journal article
All-MXene thermoelectric nanogenerator
Materials today energy, Vol.29, 101129
Oct 2022
Abstract
MXenes have been widely investigated in energy storage, electromagnetic interference shielding, sensing, electronic, and photonic applications. Some MXenes have been predicted to have outstanding thermoelectric (TE) properties, but relevant explorations are very limited. Herein, the TE performance of Mo2TiC2Tx and Nb2CTx MXenes are carefully controlled into n- and p-type, respectively, by organic molecule intercalation and thermal treatment. Optimized Mo2TiC2Tx and Nb2CTx MXenes show TE power factor of 13.26 and 11.06 μW m/K2 at room temperature, respectively. Combing Ti3C2Tx MXene as a contact electrode owing to its high electrical conductivity (up to 8000 S/cm in this study), we have successfully designed and fabricated all-MXene flexible and integrated TE nanogenerators. The MXene TE nanogenerator was fabricated using 20 p-n units and could produce an output voltage and power of 35.3 mV and 33.9 nW, respectively, under a temperature difference of 30 °C. Although this performance is below classical TE materials, it is comparable to other solution-processed two-dimensional materials, being developed for nanogenerators applications.
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•The thermoelectric performance of Mo2TiC2Tx and Nb2CTx MXenes are carefully controlled into n- and p-type, respectively.•Optimized Mo2TiC2Tx and Nb2CTx MXenes show thermoelectric power factor of 13.26 and 11.06 μW m/K2 at room temperature, respectively.•All-MXene-based thermoelectric nanogenerator was fabricated using 20 p-n units and could produce an output voltage and power of 35.3 mV and 33.9 nW, respectively.
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Details
- Title
- All-MXene thermoelectric nanogenerator
- Creators
- Dazhen Huang - King Abdullah University of Science and TechnologyHyunho Kim - King Abdullah University of Science and TechnologyGuodong Zou - King Abdullah University of Science and TechnologyXiangming Xu - King Abdullah University of Science and TechnologyYunpei Zhu - King Abdullah University of Science and TechnologyKaleem Ahmad - King Saud UniversityZeyad A. Almutairi - King Saud UniversityHusam N. Alshareef - King Abdullah University of Science and Technology
- Publication Details
- Materials today energy, Vol.29, 101129
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000867693500002
- Scopus ID
- 2-s2.0-85138456792
- Other Identifier
- 991022059923404721