Jingfeng Wang

TL;DR: In this paper, a review of the recent advances of ink-based 3D printed graphene-based materials is presented, including the basic properties and preparation methods of graphene, some promising inkbased 3DP, such as inkjet printing technology, direct-write assembly, and fused deposition modeling and their characteristics.

TL;DR: A homogeneous MXene film actuator with high electrical conductivity triggered by moisture gradients and reveal the driving mechanism, which further expands the new application ranges of MXene materials and provides new opportunities for building the next generation of high-conductivity smart actuators.

TL;DR: In this article, a Ti3C2Tx MXene film assembled by using conventional vacuum-assisted filtration has an outstanding volumetric performance due to its excellent pseudocapacitive and high density.

Abstract: MXene (Ti3C2Tx) film produced through regular vacuum-assisted filtration have advantages of high conductivity, excellent mechanical performance, good surface wettability and others. However, the production method costs a large amount of time and energy, greatly limiting large-scale application of such film. Inspired by filtration of silt, we reveal and verify the feasibility of fast film forming through vacuum-assisted filtration of two-dimensional (2D) materials by using ions to induce MXene colloidal dispersion to transform into three-dimensional (3D) microgel in this work. A suitable gap between MXene microgel is the premise of sustainable fast water molecule filtration; the strong gelation and internal riveting effect inside the microgel ensure the formability of MXene film. Therefore, the production of MXene film is dramatically shortened from a few hours to just dozens of seconds. More importantly, MXene film prepared in this way can be folded and rubbed, and presents more excellent mechanical property, high electrochemical performance, and good electromagnetic interference shielding effective. This work provides theoretical and technical support for effective production of MXene film with excellent comprehensive properties and is of great significance to large-scale MXene film preparation and application.

TL;DR: In this paper, a MXene/cellulose nanofiber composite film with low density and high conductivity was prepared by using an ice crystal sacrificial template as a pore-forming agent and CNF as a structural reinforcement.