Recent Applications of 2D Inorganic Nanosheets for Emerging Energy Storage System

Abstract

Among many types of nanostructured inorganic materials, highly anisotropic 2D nanosheets provide unique advantages in designing and synthesizing efficient electrode and electrocatalyst materials for novel energy storage technologies. 2D inorganic nanosheets boast lots of unique characteristics such as high surface area, short ion diffusion path, tailorable compositions, and tunable electronic structures. These merits of 2D inorganic nanosheets render them promising candidate materials as electrodes for diverse secondary batteries and supercapacitors, and electrocatalysts. A wide spectrum of examples is presented for inorganic nanosheet-based electrodes and electrocatalysts. Future perspectives in research about 2D nanosheet-based functional materials are discussed to provide insight for the development of next-generation energy storage systems using 2D nanostructured materials.

Application of Exfoliated Inorganic Nanosheets for Strongly‐Coupled Hybrid Photocatalysts

“…To achieve a remarkable enhancement of the photocatalytic activity upon hybridization, the monolayered nanosheets prepared from the intercalation‐based exfoliation are one of the best candidates as building blocks for hybrid‐type photocatalysts. Since most of the chemically exfoliated inorganic nanosheets have sufficient surface charge, they can be easily hybridized with other species in terms of electrostatic interactions. Depending on the hybridization method, the 2D nanosheet‐based hybrid materials can be synthesized in the form of a composite powder or as multilayered thin films .…”

Poly(3,4-ethylenedioxythiophene) Based Solid-State Polymer Supercapacitor with Ionic Liquid Gel Polymer Electrolyte

“…The detail preparation of PEDOT/CP electrode was stated in our previous work [38]. The long and smooth fibers of CP orient randomly and are densely packed, forming the porous structure ( Figure 1B,C) [3,40], which is help for the coating of PEDOT and provides the channel for the ion migration. Figure 1E,F shows that the CP coated with PEDOT films (PEDOT/CP) retained the loose, porous microstructure of electrode and that there are lots of spindle-like multi-sized PEDOT distributing uniformly over individual carbon fibers.…”

“…Recently, electrochemical energy storage devices have received much attention due to the increasing population and the sharp depletion of fossil fuels [1][2][3][4]. Supercapacitors (SCs) are a promising green energy storage device because of their high power density, fast charge-discharge rate, long-cycle stability, and eco-friendliness [5][6][7][8][9][10].…”

Nanostructured metal chalcogenides confined in hollow structures for promoting energy storage

“…In spite of these successes, the study of CHMCs is still in its infancy, and more advanced conned hollow nanostructures with multifunctional compositions and controlled congurations, and related mechanisms remain to be explored. Considering that previous reviews have reported diverse 2D or simple hollow structures of metal suldes and oxides, and their energy-related applications, [25][26][27][28][29] this review focuses on CHMCs and the correlation between CHMC structural features and their electrochemical behaviours, aiming at providing some insight into the design and synthesis of advanced CHMCs. The content of this review can be divided into three parts: rstly, we summarized the very recent progress in the smart architecture of CHMCs through compositional and geometrical manipulation.…”