Natural Cellulose Substance Based Energy Materials.

The natural cellulose substances have been proven to be ideal structural templates and scaffolds for the fabrication of artificial functional materials with designed structures, psychochemical properties and functionalities. The natural cellulose substances own unique hierarchically porous network structures with flexible, biocompatible, and environmental characteristics, exhibiting great potentials in the preparation of energy-related materials. This minireview summarizes the natural cellulose substances based materials that utilized in batteries, supercapacitors, photocatalytic hydrogen generation, photoelectrochemical cells, and solar cells. When the natural cellulose substances are employed as the structural template or carbon sources of the energy materials, the three-dimensionally porous interwoven structures are perfectly replicated, leading to the enhanced performances of the resultant materials. Benefiting from the mechanical strengths of the natural cellulose substances, the wearable, portable, free-standing, and flexible materials for energy storage and conversion are easily obtained by using natural cellulose substances as the substrates.