In-Situ Growth of Self-Reduction MXene/AuNP-Decorated CNT Yarns (CNTYs) for One-Dimensional Textile Heaters with Exceptional Electrothermal Performance

Electric heating textiles not only can be used as commercial electric heating products but also have great potential in the application of medical fields. In this work, a Ti3C2Tx (MXene) and gold nanoparticle (AuNP)-decorated carbon nanotube yarn (CNTY) for one-dimensional (1D) textile heaters was fabricated through an in situ self-reduction reaction of MXene in HAuCl4 aqueous solution to improve the electrical properties of the carbon nanotube yarns. Based on the excellent conductivity of the MXene/AuNP-decorated CNTYs, this 1D textile heater exhibits excellent electro-thermal properties with good wash stability and acid and alkali resistance. At a voltage of 3 V, the saturation temperature can quickly reach ∼154 °C. After integration with conventional fabrics, the devices exhibit excellent thermal response and cycling stability, reaching ∼92 °C at a safe voltage (6 V) and remaining stable for over 1000 s.