Ti3C2T MXene based hybrid electrodes for wearable supercapacitors with varied deformation capabilities

Porous polyoxotungstate/MXene hybrid films allowing for visualization of the energy storage status in high-performance electrochromic supercapacitors

“…6c and S8a † that MXene/P 2 W 18 exhibits relatively poor stability during the cycle under the same test conditions (50 mV s −1 ) compared to NW@MXene/P 2 W 18 composites. 67 These results indicate that the TiO 2 NWs can not only effectively promote the transport of electrons and ions by forming 3D pore structures, but also help to improve the overall electrochemical stability of the materials as supporting materials. As can be seen from Fig.…”

“…The increased energy consumption of smart electronics requires the development of improved energy storage devices, wherein electrochemical energy storage is playing an increasingly important role in this sustainable post-fossil-fuel era. [1][2][3][4][5][6][7] In this context, the development of multifunctional supercapacitors (SCs) has attracted a lot of attention for application in areas such as self-charging supercapacitors, 8,9 smart energy storage windows, [10][11][12][13] flexible wearable supercapacitors, 14 and electrical electrochromic supercapacitors (ECSCs). 15,16 ECSCs combine the advantages of electrochemical energy storage with an accompanying color change to provide a visual display of the charge and discharge states.…”

Three-Dimensional MXene-Based Functional Materials for Water Treatment: Preparation, Functional Tailoring, and Applications

“…Unlike PMMA microspheres, PS microsphere templates are due to electrostatic interactions between the positive surface charge and the negative charge carried by the MXene. − Similar polymeric templates are also available for melamine–formaldehyde (MF) microspheres, where nitrogen-containing functional groups (−NH 2 , −NH−) trap protons from solution, giving them a positive charge and thus an electrostatic interaction with the MXene. − However, it is worth noting that Ti 3 C 2 T x is doped by in situ nitrogen in the presence of gaseous ammonia produced by thermal annealing MF decomposition. These nitrogen-containing transition metal carbides and nitrides have been shown to be more active, and therefore, this porous framework structure developed for N-Ti 3 C 2 T x can effectively improve the electrochemical properties and enhance its performance in the energy storage direction. − …”

“…Because of the weak gelation abilities of MXenes, the mechanical properties of MXene three-dimensional structures prepared by the above methods are often unsatisfactory. An effective strategy is to use existing three-dimensional porous skeletons, such as polymer foam, ,,, wood sponge, and foam metal, to load the MXene onto the three-dimensional skeleton by means of impregnation and spraying to form a uniform and continuous three-dimensional network. By adjusting the morphology of the skeleton, 3D structures with different structures can be easily constructed.…”

Designing free-standing 3D lamellar/pillared RGO/CNTs aerogels with ultra-high conductivity and compressive strength for elastic energy devices

“…To the best of our knowledge, the mechanical compression stability is among the highest values compared with other reported results. [50][51][52][53][54][55][56][57][58][59] In addition, RGO/CNTs aerogels were also investigated for application in piezoelectric nanogenerators (PENGs), which can deliver a high output voltage of about 0.6 V and current of 0.2 mA under a compressive strain of 80%. Therefore, the 3D lamellar/ pillared RGO/CNTs aerogels demonstrated in this study represent a type of promising materials to develop highly mechanically compressible energy devices with high performance.…”