Inspired by bread leavening: one-pot synthesis of hierarchically porous carbon for supercapacitors
By Deng, Jiang; Xiong, Tianyi; Xu, Fan; Li, Mingming; Han, Chuanlong; Gong, Yutong; Wang, Haiyan & Wang, Yong
Published in Green Chem.
The Royal Society of Chemistry
2015
Abstract
Hierarchically porous carbons (HPCs) show great potential in energy storage due to their high surface area as well as short ion transport path derived from the interconnected porous framework. However, most existing protocols highly rely on nanocasting and soft-templating, which usually make the use of specific raw materials and thus their industrial application unfeasible. It still remains a big challenge to build HPCs from crude biomass, which is abundant on the earth, through a simple one-pot approach. Inspired by leavening of bread, we design a strategy to fabricate HPCs with three-dimensional (3D) hierarchical pores consisting of macro, meso, and micropores. The {}leavening method{"} is conducted simply by mixing the biomass with KHCO3 followed by elevated temperature treatment. Besides the well-defined hierarchical structure{
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