101 / 2021-10-15 13:25:59

Collaborative Construction and Properties of Cellulose Nanofibers/MXene Functional Composites

Cellulose nanofibers, MXene, Composite materials, Functionalization, Flexible electronics

Cellulose nanofibers (CNFs) are a new kind of one-dimensional nanomaterials derived from natural

plants. With characteristics of extensive sources, environmental protection, high aspect ratio, excellent

mechanical properties, and adjustable physical and chemical properties, CNFs have important potentials

for the applications of wearable and flexible electronics. Although CNFs can endow flexible electronic

products with excellent mechanical properties, it will also bring challenges such as low conductivity to

electronic products as CNFs are electronic insulating materials. As a new two-dimensional nanomaterial,

MXenes with characteristics such as excellent electrical conductivity, thermal conductivity, photothermal

properties, and antibacterial property, have aroused the wide concern of researchers all over the world. It

has been reported to be applied in many fields such as energy, environment, biomedicine, and so on.

However, the poor interactions of two-dimensional MXene nanosheets lead to low mechanical strength

and poor flexibility of the MXene based materials. Therefore, based on the excellent physicochemical

properties of one-dimensional CNFs and two-dimensional MXene, this paper develops a series of

construction strategies and methods of CNFs/MXene functional composites with different structural

forms, reveals the synergistic mechanism between one-dimensional CNFs and two-dimensional MXene

nanosheets, and improves the comprehensive properties of CNFs/MXene composites through component

regulation and structural design. We also explore the applications of CNFs/MXene functional composites

in a variety of flexible electronic scenes (such as electromagnetic shielding, electronic fibers and textiles,

nanogenerators, etc.). It can provide theoretical support and technical guidance for the realization of

functionalization, high value, and diversified utilization of cellulose nanofibers based materials.