Abstract
The performance of energy storage devices is highly related to the properties of electrode materials, such as components, morphology, configurations and so on. As a typical hierarchical carbon material, three-dimensional ordered porous carbon (3D-OPC) has unique characteristics of low cost, large specific surface area, highly ordered channels, and high electronic and ionic conductivity, which shows great potential in energy storage and conversion applications. In this minireview, we summarize various template-assisted preparation methods for 3D-OPC, including hard-, ice- and self-templated approaches, and their applications in electrocatalysis, batteries and supercapacitors. Additionally, the critical roles of vertical channels in 3D-OPC when used as electrodes are also discussed. Finally, the current challenges and future research outlook of 3D-OPC are proposed.
Highlights
Developing safe, low-cost and efficient energy storage and conversion devices has become an urgent need, owing to the growing demands of sustainable resources, such as solar and wind power (Cao et al, 2017; Li et al, 2020; Wu M. et al, 2020)
We summarize the controllable preparation methods for 3D-OPC, and the latest research progress of 3D-OPC in energy storage and conversion applications
Tremendous explorations and optimizations of the 3D-OPC and their composites are indispensable in the future work
Summary
Developing safe, low-cost and efficient energy storage and conversion devices has become an urgent need, owing to the growing demands of sustainable resources, such as solar and wind power (Cao et al, 2017; Li et al, 2020; Wu M. et al, 2020). Carbon materials exhibit numerous advantages, such as high electrical conductivity, low cost and high specific surface area (Cao et al, 2014; Li et al, 2019; Wu Q. et al, 2020). Thick electrode leads to high tortuosity, which hinders the penetration of electrolyte and ion transport and results in limited utilization of active materials (Wang et al, 2019; Shi et al, 2020a). It is an effective way to promote the transportation of ions and electrons by fabricating low-tortuosity electrode. When used as an electrode material, it can provide fast electron transport path, and significantly shorten ion diffusion length to
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