Facile Synthesis of Hierarchically Macro/Mesoporous Carbons by Polymerization-Induced Phase Separation Combined with Starch Template

Abstract:

In this work, a facile approach combining polymerization-induced phase separation and starch-templating is presented to synthesize hierarchically macro/mesoporous carbons. The obtained porous carbons have bimodal macropores with pore diameters of 10~60 μm and 3~5 μm and 3D interconnected mesopores with pore diameters of 5~40 nm. The large macropores and the small macropores are obtained by the thermal decomposition and the closely stacking of starch particles, respectively. The 3D interconnected mesopores are developed through polymerization-induced phase separation between ethylene glycol and phenolic resin via spinodal decomposition mechanism. These as-prepared hierarchically macro/mesoporous carbons may have great potential for applications as electrodes materials for batteries, fuel cells, and supercapacitors due to their facile synthesis, unique hierarchical porous structure, and large BET surface areas (~ 610 m2/g).

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 1641-1646
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.1641
• Online since: June 2012
• Authors: Ze Wen Xiao, Gang Zhang, Guan Jun Qiao
• Keywords: Hierarchical Porous Carbon, Polymerization-Induced Phase Separation, Template

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