Wood‐Derived Materials for Advanced Electrochemical Energy Storage Devices

Abstract

Over the past decade, wood‐derived materials have attracted enormous interest for both fundamental research and practical applications in various functional devices. In addition to being renewable, environmentally benign, naturally abundant, and biodegradable, wood‐derived materials have several unique advantages, including hierarchically porous structures, excellent mechanical flexibility and integrity, and tunable multifunctionality, making them ideally suited for efficient energy storage and conversion. In this article, the latest advances in the development of wood‐derived materials are discussed for electrochemical energy storage systems and devices (e.g., supercapacitors and rechargeable batteries), highlighting their micro/nanostructures, strategies for tailoring the structures and morphologies, as well as their impact on electrochemical performance (energy and power density and long‐term durability). Furthermore, the scientific and technical challenges, together with new directions of future research in this exciting field, are also outlined for electrochemical energy storage applications.

Nanoporous Activated Carbon Material from Terminalia chebula Seed for Supercapacitor Application

“…GCD responses were recorded over a wide range of current density, from 1 to 50 A g −1 . Figure 7a displays the GCD profiles for the electrodes at 1 A g −1 , where a triangular shape confirms the charge storage mechanism to EDLC-type [61,62,63,64]. In that the increase in carbonization temperature increases the porosity and surface area the Harro carbon, and hence, there is an enhancement in the energy storage performa of the materials obtained at high temperature.…”

“…GCD responses were recorded over a wide range of current density, from 1 to 50 A g −1 . Figure 7a displays the GCD profiles for the electrodes at 1 A g −1 , where a triangular shape confirms the charge storage mechanism to EDLC-type [61][62][63][64]. In the GCD response, the discharge time, which measures the energy storage capacity of the electrode, depends on the surface textural properties.…”

Wood‐inspired polyacrylonitrile foam with hierarchically aligned porous structure for application in water purification

“…Numerous studies have confirmed that a hierarchically aligned porous structure is formed in wood, which has excellent water flux and mechanical properties 25–27 . As water flows through the wood from the hierarchically aligned pores, the fine pores provided space for full contact between the water and the porous wall, as shown in Figure 3(a).…”

Ethanol‐Assisted Nitrogen‐Blade Coating and Surface Passivation for Efficient and Stable Perovskite Solar Modules

“…Thus, 4‐FPPA was designed by introducing an electron‐withdrawing fluorine atom into the 3‐phenyl‐2‐propen‐1‐amine benzene ring. This modification creates a strong molecular dipole, which enhances built‐in electric fields at the perovskite interface, promoting charge separation [38–41], while maintaining the benefits of PPA toward PSCs.…”