The synchronous harvesting and conversion of multiple renewable energy sources for chemical fuel production and environmental remediation in a single system is a holy grail in sustainable energy technologies. However, it is challenging to develop advanced energy harvesters that satisfy different working mechanisms. Here, we theoretically and experimentally disclose the use of MXene materials as versatile catalysts for multi-energy utilization. TiCT MXene shows remarkable catalytic performance for organic pollutant decomposition and H production. It outperforms most reported catalysts under the stimulation of light, thermal, and mechanical energy. Moreover, the synergistic effects of piezo-thermal and piezo-photothermal catalysis further improve the performance when using TiCT. A mechanistic study reveals that hydroxyl and superoxide radicals are produced on the TiCT under diverse energy stimulation. Furthermore, similar multi-functionality is realized in TiCT, VCT, and NbCT MXene materials. This work is anticipated to open a new avenue for multisource renewable energy harvesting using MXene materials.
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http://dx.doi.org/10.1038/s41467-023-39791-w | DOI Listing |
Int J Biol Macromol
January 2025
School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, United Kingdom. Electronic address:
The fabrication of eco-friendly and high-performance composite materials has gained significant attention for multifunctional applications. Polyvinyl alcohol (PVA)/starch composite films containing varying amounts of TiCT MXene (2.5-10 wt%) were produced using a simple casting method.
View Article and Find Full Text PDFLangmuir
January 2025
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, P.R. China.
MXenes have attracted tremendous attention in electromagnetic interference shielding, energy storage, and gas and humidity detections because of their ultralarge surface area and abundant functional groups. However, their poor stability against hydration and oxidation makes them challenging for long-term storage and applications. Herein, we proposed and demonstrated a TiCT MXene composite-based humidity sensor, of which the stability is pronouncedly enhanced by introducing an O adsorption competitor of extracted bentonite (EB).
View Article and Find Full Text PDFSci Adv
January 2025
School of Chemistry, Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University, Beijing 100191, China.
Actuation is normally dramatically enhanced by introducing so much yarn fiber twist that the fiber becomes fully coiled. In contrast, we found that usefully high muscle strokes and contractile work capacities can be obtained for non-twisted MXene (TiCT) fibers comprising MXene nanosheets that are stacked in the fiber direction. The MXene fiber artificial muscles are called MFAMs.
View Article and Find Full Text PDFACS Nano
January 2025
Henan Academy of Sciences, Zhengzhou 450046, China.
Interlayer and defect engineering significantly affects the electrical conductivity and electromagnetic interference (EMI) shielding of TiCT MXene. Previous studies have prioritized the size of the intercalant over its synergy with chemical affinity, limiting the elucidation of the intercalation mechanism and the precise control of the interlayer spacing (spacing). Herein, we synthesize MXene aerogels with a tunable spacing and defect density using a series of amine molecules of different sizes and chemical affinities as intercalants and cross-linkers.
View Article and Find Full Text PDFSensors (Basel)
December 2024
Innovation Platform of Micro/Nano Technology for Biosensing, ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311200, China.
As a crucial biomarker for the early warning and prognosis of liver cancer diseases, elevated levels of alpha-fetoprotein (AFP) are associated with hepatocellular carcinoma and germ cell tumors. Herein, we present a novel signal-on electrochemical aptamer sensor, utilizing AuNPs-MXene composite materials, for sensitive AFP quantitation. The AuNPs-MXene composite was synthesized through a simple one-step method and modified on portable microelectrodes.
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