Advances in Micro-/Mesopore Regulation Methods for Plant-Derived Carbon Materials

Author:

Liu Jing,Zhang Ke,Wang Huiyan,Lin Lin,Zhang Jian,Li Peng,Zhang Qiang,Shi JunyouORCID,Cui Hang

Abstract

In recent years, renewable and clean energy has become increasingly important due to energy shortage and environmental pollution. Selecting plants as the carbon precursors to replace costly non-renewable energy sources causing severe pollution is a good choice. In addition, owing to their diverse microstructure and the rich chemical composition, plant-based carbon materials are widely used in many fields. However, some of the plant-based carbon materials have the disadvantage of possessing a large percentage of macroporosity, limiting their functionality. In this paper, we first introduce two characteristics of plant-derived carbon materials: diverse microstructure and rich chemical composition. Then, we propose improvement measures to cope with a high proportion of macropores of plant-derived carbon materials. Emphatically, size regulation methods are summarized for micropores (KOH activation, foam activation, physical activation, freezing treatment, and fungal treatment) and mesopores (H3PO4 activation, enzymolysis, molten salt activation, and template method). Their advantages and disadvantages are also compared and analyzed. Finally, the paper makes suggestions on the pore structure improvement of plant-derived carbon materials.

Funder

the Technology Innovation Project of Jilin Province Science and Technology Department

the National Natural Science Foundation of China

Publisher

MDPI AG

Subject

Polymers and Plastics,General Chemistry

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